Authorship：Last author,　Corresponding author   Publishing type：Research paper (international conference proceedings)   Publisher：ACM  

DOI： 10.1145/3406499.3415069

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (scientific journal)  

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Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：ACM  

DOI： 10.1145/3349537.3351884

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Authorship：Lead author,　Last author,　Corresponding author   Language：Japanese   Publishing type：Part of collection (book)  

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Authorship：Last author   Language：English   Publishing type：Research paper (international conference proceedings)  

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.14923/transinfj.2017LEP0032

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.14923/transinfj.2017LEP0033

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.14923/transinfj.2017HAP0010

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.14923/transinfj.2015JDP7114

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：SPRINGER INT PUBLISHING AG  

In this research, we aim to create a heightened and physical musical experience by combining electronic sound and time-lagged multiple vibrations that surround the user's neck, chest, and back. The purpose of the research is to elevate an immersive and extended experiences of music as though the sound source had a physical presence. We developed a wearable interface of a vibration-motor array with separately controlled multiple vibration motors to simulate both strong bass sounds and movement of the physical presence of the sound source. The control of intensity and the time differences among the motors produce not only the illusion of spatial presence but also the physical penetration of the ongoing sound. The results of the evaluations showed the effects of (1) the combination of vibration and sound in the musical experience and (2) time differences of the starting timings between the front and back vibrations when creating the illusion of physical penetration as though the sound had a physical presence.

DOI： 10.1007/978-3-319-46100-7_15

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Association for Computing Machinery, Inc  

In this paper, we propose spatial communication between a virtual agent and a user through common space in both virtual world and real space. For this purpose, we propose the virtual agent system SCoViA, which renders a synchronized synthesis of the agent's appearance corresponding to the user's relative position to the monitor based on synchronization with the user's motion parallax in order to realize human-agent communication in the real world. In this system, a realtime three-dimensional computer-generated (3DCG) agent is drawn from the changing viewpoint of the user in a virtual space corresponding to the position of the user's head as detected by face tracking. We conducted two verifications and discussed the spatial communication between a virtual agent and a user. First, we verified the effect of a synchronized redrawing of the virtual agent for the accurate recognition of a particular object in the real world. Next, we verified the approachability of the agent by reacting to the user's eye contact from a diagonal degree to the virtual agent. The results of the evaluations showed that the virtual agent's eye contact affected approachability regardless of the user's viewpoint and that our proposed system using motion parallax could significantly improve the accuracy of the agent's gazing position with each real object. Finally, we discuss the possibility of the real-world human-agent interaction using positional relationship among the agent, real objects, and the user.

DOI： 10.1145/2814940.2814954

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (scientific journal)  

CiNii Books

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Information Processing Society of Japan (IPSJ)  

This paper proposes a design of facial expression for a virtual agent in order to express the agent's ownership of real-world object. Ownership of things is common concept for all people; the ownership means posession of a certain object and exclusive rights to keep and use the object. Expressions for ownership are shown when people insist the exclusive rights on the object by their interest feelings with an interest in the negotiations of ownership or the right of use. The process of possession is composed of following four parts: unpossession, possession, abandonment, and desire. We verify the effectiveness of the facial expressions to show the agent's ownership expression.

CiNii Books

J-GLOBAL

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (scientific journal)  

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

This paper proposes an effective communication with an agent's appearance and reality of the acceptance level of the user's order using verbal and nonverbal expressions. The crossmodal combination is expected to enable delicate expressions of the agent's internal state especially when the agent's decision of the acceptance is different from the agent's mind, so the user becomes aware of the difficult situations. We have proposed to adopt the facial expression and the flexion of the word ending as the parameters of the agent's internal state. The expressions are attached to the scripts of each acceptance level. The results of the expressions showed the following: 1) the effectiveness of both the facial and flexion expressions, and 2) the crossmodal combinations that generate the agent's concealed but real feeling.

DOI： 10.1109/ROMAN.2015.7333623

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Springer Verlag  

In this paper, we introduce a haptic message-robot which gives user-friendly physical contacts while it tells message to the user. This robot is expected to help elderly people who need outings but have anxiety. The pervasive support of the robot via network will provide the user a human-like service as though it were a real caregiver. The system makes haptic stimili corresponding to the user's clothing and posture. We investigated two types of implementations: the first implementation combines haptic stimili and anthropmorphic motion to express the physical contact, and the second one is an simplified system for application on smartphones to provide ubiquitous services. The subjective evaluations in a course with two diverges showed the effectiveness of both the robot's motion and the haptic stimuli on the intelligibleness and affective communication. © 2014 Springer International Publishing Switzerland.

DOI： 10.1007/978-3-319-07788-8_38

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)  

In this paper, we introduce a wearable partner agent, that makes physical contacts corresponding to the user's clothing, posture, and detected contexts. Physical contacts are generated by combining haptic stimuli and anthropomorphic motions of the agent. The agent performs two types of the behaviors: a) it notifies the user of a message by patting the user's arm and b) it generates emotional expression by strongly enfolding the user's arm. Our experimental results demonstrated that haptic communication from the agent increases the intelligibility of the agent's messages and familiar impressions of the agent.Copyrightcopy
2013 ACM.

DOI： 10.1145/2493988.2494347

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Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

DOI： 10.2478/pjbr-2013-0008

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Language：English   Publishing type：Research paper (scientific journal)  

This paper introduces a daily-partner robot, that is aware of the user's situation by using gaze and utterance detection. For appropriate anthropomorphic interaction, the robot should talk to the user in proper timing without interrupting her/his task. Our proposed robot 1) estimates the user's context (the target of her/his speech) by detecting his/his gaze the utterance, 2) expresses the need to speak to the user by silent gaze-turns towards the user and the object of joint attention (speech-implying behaviour) and 3) tells the message when the user talks to the robot. Based on preliminary results that show the sufficient human-sensitivity to the speech-implying behaviours of the robot, we evaluate the proposed behavioural model. The results show that the crossmodal awareness is effective for respectful communication that does not disturb the user's ongoing task by silent behaviours that effectively show the robot's intention to speak and draw the user's attention. Copyright © 2012 Inderscience Enterprises Ltd.

DOI： 10.1504/IJAACS.2012.044782

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Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Information and Media Technologies Editorial Board  

This paper proposes a video communication assist system using a companion robot in coordination with the user's conversational attitude toward the communication. In order to maintain a conversation and to achieve comfortable communication, it is necessary to provide the user's attitude-aware assistance. First, the system estimates the user's conversational state by a machine learning method. Next, the robot appropriately expresses its active listening behaviors, such as nodding and gaze turns, to compensate for the listener's attitude when she/he is not really listening to another user's speech, the robot shows communication-evoking behaviors (topic provision) to compensate for the lack of a topic, and the system switches the camera images to create an illusion of eye-contact, corresponding to the current context of the user's attitude. From empirical studies and a demonstration experiment, <i>i)</i> both the robot's active listening behaviors and the switching of the camera image compensate for the other person's attitude, <i>ii)</i> elderly people prefer long intervals between the robot's behaviors, and <i>iii)</i> the topic provision function is effective for awkward silences.

DOI： 10.11185/imt.6.1269

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：ASSOC COMPUTING MACHINERY  

This paper introduces a design of life-context-aware alert system from multiple small microphone sensors at various places in home. In order to support the comfortable daily lives of elderly people who live alone, it is important to know their daily activities in home without privacy exposure. In the case of their emergency appeared from overwatching data, the system must alert the situation to the hospitals, ambulances, or their families. To reduce data for fast calculation on PIC and to protect their privacy, the system adopts simplified sound spectrogram from each installed microphone modules. The system first analyses these multiple signals to roughly understand what situation occurs, and decides what type of dailylife are found. When the user's life shows emergent situations, the system alerts to the appropriate contact person or institution. This paper especially describes how to simplify the raw data from the microphone sensor with using frequency/time domain for reducing the amount of data and for privacy protection.

DOI： 10.1145/2036146.2036148

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Language：English   Publishing type：Research paper (international conference proceedings)  

In this paper, we introduce an effective scheme for browsing and sharing personal voice memos using three-dimensional (3D) auditory space. We proposed an intuitive framework to record and browse numerous personal voice memos using the user's head directions to post voice memos in user-relative auditory directions for each utterance. The user can define the sharing attribute of each voice memo in the edit mode so that personal and public voice memos are appropriately shared with the permitted users. The shared spaces, which are hemispherical auditory balloons, are overlapped or arranged in separated angles by the number of sharing users. The results of user tests showed that the user could intuitively recognize the existence of whole memos and that there is a possibility of different feelings and cognitions in the voice memos using our proposed scheme compared to conventional voice memos. © 2011 IEEE.

DOI： 10.1109/ICSPCC.2011.6061783

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

In this paper, we propose and evaluate a video communication system that compensates for user's uncongenial attitudes by coordinating the robot's behaviors and media control of the video. The system facilitates comfortable video communications between elderly or disabled people by an assistant robot for each user that expresses a) active listening behaviors to compensate for the listener's attitude when he/she is not really listening to another user's talking and b) a cover-up behavior (gaze turned to the user) to divert attention from the other user's uncongenial attitude when that person is not looking at the talking user but toward the robot at her/his side; this behavior is performed by coordinating the automatic switching of cameras to give the impression that the congenial person is still looking at the user. The results obtained in the system evaluation show the significant effectiveness of this design approach using the robot's behavior and media control of the video to compensate for the problems in video communication that we aimed to overcome.

DOI： 10.1109/IROS.2010.5650044

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：ASSOC COMPUTING MACHINERY  

This paper proposes a videophone conversation support system by the behaviors of a companion robot and the switching of camera images in coordination with the user's conversational attitude toward the communication. In order to maintain a conversation and to achieve comfortable communication, it is necessary to understand a user's conversational states, which are whether the user is talking (taking the initiative) and whether the user is concentrating on the conversation. First, a) the system estimates the user's conversational state by a machine learning method. Next, b-1) the robot appropriately expresses its active listening behaviors, such as nodding and gaze turns, to compensate for the listener's attitude when she/he is not really listening to another user's speech, b-2) the robot shows communication-evoking behaviors (topic provision) to compensate for the lack of a topic, and b-3) the system switches the camera images to create an illusion of eye-contact corresponding to the current context of the user's attitude. From empirical studies, a detailed experiment, and a demonstration experiment, i) both the robot's active listening behaviors and the switching of the camera image compensate for the other person's attitude, ii) the topic provision function is effective for awkward silences, and iii) elderly people prefer long intervals between the robot's behaviors.

DOI： 10.1145/1858367.1858368

Web of Science

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：The Institute of Electronics, Information and Communication Engineers  

CiNii Books

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)  

This paper proposes a daily-partner robot, that is aware of the user's situation or behavior by using gaze and utterance detection. For appropriate and familiar anthropomorphic interaction, the robot should wait for a timing to talk something to the user corresponding to the situation of her/him while she/he doing a task or thinking. According to the need, our proposed robot i) estimates the user's context by detecting her/his gaze and utterance, such as the target of the user's speech, ii) tries to notify the need to speak to the user by silent (i.e. without making an utterance) gazeturns toward the user and joint attention with taking advantage of the attentiveness, and iii) tell the message when the user talks to the robot. The results of experiments combining subjects' daily tasks with/without the above steps show that the crossmodal-aware behaviors of the robot are important in respectful communications without disturbing the user's ongoing task by adopting silent behaviors showing the robot's intention to speak and for drawing the user's attention. Copyright 2009 ACM.

DOI： 10.1145/1538864.1538866

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

In this paper, we propose a guide system for daily life in semipublic spaces by adopting a gaze-communicative stuffed-toy robot and a gaze-interactive display board. The system provides naturally anthropomorphic guidance through a) gaze-communicative behaviors of the stuffed-toy robot ("joint attention" and "eye-contact reactions") that virtually express its internal mind, b) voice guidance, and c) projection on the board corresponding to the user's gaze orientation. The user's gaze is estimated by our remote gaze-tracking method. The results from both subjective/objective evaluations and demonstration experiments in a semipublic space show i) the holistic operation of the system and ii) the inherent effectiveness of the gaze-communicative guide.

DOI： 10.1109/IROS.2008.4650692

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Language：English   Publishing type：Research paper (international conference proceedings)  

In this paper we propose an intuitive page-turning and browsing interface of e-books on a flexible e-paper based on user studies. Our user studies showed various types of page-turning actions such as flipping, grasping, and sliding by different situations or users. We categorized these actions into three categories: turn, flip through, and leaf through the page(s). Based on this categorized model, we have developed a conceptual design and prototype of an interface for an e-book reader, which enables intuitive page-turning interactions using a simple architecture in both hardware and software design. The prototype has a flexible plastic sheet with bend sensors, which is attached to a small LCD monitor to physically unite the visual display with a tangible control interface based on the natural page-turning actions as used in reading a real book. The prototype handles all three page-turning actions observed in the user studies by interpreting the bend degree of the sheet.Copyright 2008 ACM.

DOI： 10.1145/1459359.1459489

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Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)  

We propose a tangible interface which uses flip and flex actions on an e-paper by a user of an e-book. The user can have much more natural feeling that they are reading a "book" on an e-paper compared to current e-books that depend on button interfaces since he/she uses the same kinds of actions on a book. Our prototype consists from bend sensors attached to a flexible plastic sheet, a small LCD monitor, a speaker, and softwares on a PC. A user's page-turning motions, such as "curl and flip," "flick through," and "rub and pick up," are converted to the number of pages to flip. The number is sent to an e-book software to present an animation and the sound to show page flips.

DOI： 10.1145/1400885.1400923

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Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

This paper experimentally shows the importance of perceptual continuity of the expressive strength in vocal timbre for natural change in vocal expression. In order to synthesize various and continuous expressive strengths with vocal timbre, we investigated gradually changing expressions by applying the STRAIGHT speech morphing algorithm to singing voices. Here, a singing voice without expression is used as the base of morphing, and singing voices with three different expressions are used as the target. Through statistical analyses of perceptual evaluations, we confirmed that the proposed morphing algorithm provides perceptual continuity of vocal timbre. Our results showed the following: (i) gradual strengths in absolute evaluations, and (ii) a perceptually linear strength provided by the calculation of corrected intervals of the morph ratio by the inverse (reciprocal) function of an equation that approximates the perceptual strength. Finally, we concluded that applying continuity was highly effective for achieving perceptual naturalness, judging from the results showing that (iii) our gradual transformation method can perform well for perceived naturalness.

DOI： 10.1155/2007/23807

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：ASSOC COMPUTING MACHINERY  

This paper proposes a gaze-communicative stuffed-toy robot system with joint attention and eye-contact reactions based on ambient gaze-tracking. For free and natural interaction, we adopted our remote gaze-tracking method. Corresponding to the user's gaze, the gaze-reactive stuffed-toy robot is designed to gradually establish 1) joint attention using the direction of the robot's head and 2) eye-contact reactions from several sets of motion. From both subjective evaluations and observations of the user's gaze in the demonstration experiments, we found that i) joint attention draws the user's interest along with the user-guessed interest of the robot, ii) "eye contact" brings the user a favorable feeling for the robot, and iii) this feeling is enhanced when :eve contact" is used in combination with "joint attention." These results support the approach of our embodied gaze-communication model.

DOI： 10.1145/1322192.1322218

Web of Science

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Language：Japanese   Publishing type：Research paper (scientific journal)  

CiNii Books

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Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.20697/jasj.62.3_233

J-GLOBAL

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Language：English   Publishing type：Research paper (international conference proceedings)  

The aim of this paper is to clarify the relationship between the expressive strengths of gestures and voice for embodied and personified interfaces. We conduct perceptual tests using a puppet interface, while controlling singing-voice expressions, to empirically determine the naturalness and strength of various combinations of gesture and voice. The results show that (1) the strength of cross-modal perception is affected more by gestural expression than by the expressions of a singing voice, and (2) the appropriateness of cross-modal perception is affected by expressive combinations between singing voice and gestures in personified expressions. As a promising solution, we propose balancing a singing voice and gestural expressions by expanding and correcting the width and shape of the curve of expressive strength in the singing voice. Copyright 2006 ACM.

DOI： 10.1145/1180995.1181006

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Information Processing Society of Japan (IPSJ)  

We present a sensor-doll capable of music expression as a sympathetic communication device. The doll has a computer and various sensors to recognize its own situation and the activities of the user. It also has the internal "mind" states to reflect different situated contexts. The user's multimodal interaction with the passive doll is translated into musical expressions that depend on the state of mind of the doll. Finally we evaluate the effect of music expression to the human communication using the tactile doll.

CiNii Books

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE COMPUTER SOC  

We propose an application that uses music as a multimodal expression to activate and support communication that runs parallel with traditional conversation. In this paper, we examine a personified doll-shaped interface designed for musical expression. To direct such gestures toward communication, we have adopted an augmented stuffed toy with tactile interaction as a musically expressive device. We constructed the doll with various sensors for user context recognition. This configuration enables translation of the interaction into melodic statements. We demonstrate the effect of the doll on face-to-face conversation by comparing the experimental results of different input interfaces and output sounds. Consequently, we have found that conversation with the doll was positively affected by the musical output, the doll interface, and their combination.

DOI： 10.1109/ICMI.2002.1167031

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：English   Publishing type：Research paper (international conference proceedings)  

We present a sensor-doll capable of music expression as a sympathetic communication device. The doll is equipped with a computer and various sensors such as a camera, microphone, accelerometer, and touch-sensitive sensors to recognize its own situation and the activities of the user. The doll has its own internal "mind" states reflecting different situated contexts. The user's multi-modal interaction with the passive doll is translated into musical expressions that depend on the state of mind of the doll. Copyright © 2012 ACM, Inc.

DOI： 10.1145/634067.634249

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：Japanese   Publishing type：Research paper (scientific journal)  

DOI： 10.18974/tvrsj.5.1_755

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Publishing type：Research paper (scientific journal)   Publisher：Japan Society for Fuzzy Theory and Intelligent Informatics  

DOI： 10.3156/jsoft.34.3_579

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Authorship：Last author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：ACM  

DOI： 10.1145/3472307.3484683

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Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：ACM  

DOI： 10.1145/3472307.3484676

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Authorship：Last author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：ACM  

DOI： 10.1145/3472306.3478346

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Authorship：Last author   Language：English   Publishing type：Part of collection (book)   Publisher：Springer International Publishing  

DOI： 10.1007/978-3-030-77626-8_7

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Authorship：Lead author,　Last author,　Corresponding author   Language：Japanese   Publishing type：Research paper (other academic)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Authorship：Last author   Language：English   Publishing type：Part of collection (book)   Publisher：Springer International Publishing  

DOI： 10.1007/978-3-030-49904-4_21

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Authorship：Last author   Language：English   Publishing type：Part of collection (book)   Publisher：Springer International Publishing  

DOI： 10.1007/978-3-030-49904-4_45

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Authorship：Lead author   Language：English   Publishing type：Part of collection (book)   Publisher：Springer International Publishing  

DOI： 10.1007/978-3-030-49904-4_46

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Authorship：Last author   Publishing type：Research paper (international conference proceedings)   Publisher：ACM  

DOI： 10.1145/3349537.3352773

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Authorship：Last author   Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/vr.2019.8798302

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Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/vr.2019.8797964

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Authorship：Lead author,　Last author,　Corresponding author   Language：Japanese   Publishing type：Research paper (other academic)  

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Authorship：Last author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：ACM  

DOI： 10.1145/3125739.3132609

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Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Association for Computing Machinery, Inc  

In this research, we propose a system that shows a group of multiple agents as other learners to the e-leaning user. For continuous learning in e-learning, promot- ing the user's motivation for learning and appropriate breaks are considered to improve the user's work effi- ciency. The proposed system controls the proportion of the agents' behaviors in their group by allocating the state of study-either studying or taking a break-for each agent in order to indirectly indicate concentration or appropriate breaks. Consequently, the system offers multiple actions, but the user has room to make the choice regarding the action. Depending on the concen- tration degree and the duration of study of the user, the necessity of a break is calculated. That is used to control the ratio of agents who have a break and to avoid the forced feeling resulting from only one action being pre- sented by a single agent. In this paper, we examined how the ratio of behavior in the agent group influences the user. As a result, a greater ratio of studying to resting in the group influenced the participants' behaviors.

DOI： 10.1145/3125739.3125748

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Institute of Electrical and Electronics Engineers Inc.  

In this research, we aim to perform emotion estimation based on the touching manner of communication using our stuffed-toy device that we had previously proposed in order to reduce the user's stress. In this paper, we propose a method to classify a user's emotions into three types: comfort, discomfort, and unknown, by adopting a fuzzy reasoning using histogram distribution of peaks of pressure sensor values. The results of the experiment confirmed the accuracy of classification as 69.1% of the correct answer rate when the results estimated as unknown are included in the correct answers, and 63.1% of the correct answer rate when the unknown results are excluded from the correct answer. We also discuss improvements of future methods.

DOI： 10.1109/URAI.2017.7992865

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Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Springer Verlag  

In this paper, we propose a framework for a bidirectional haptic interaction system for a wearable robot as an anthropomorphic communication method. Humans have various ways to communicate with others. One of them is physical contact. To build intimate or familiar engagement between the robot and our focused users such as elderly people, children, and care receivers, we focused on bidirectional physical contact with emotional expression. The system adopts our prototype for a wearable robot that creates haptic stimuli with kinetic motions, as though it pats, seizes, or pulls the user’s clothes on her/his arm. Our discussion focuses on the interaction design of the robot with a stepwise change inthe habituation that affects the internal state of the user and the user’s interpretation of the physical contact and then we tentatively establish patterns for the robot’s physical contact.

DOI： 10.1007/978-3-319-58463-8_40

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Springer Verlag  

We propose a tactile expression mechanism that can make physical contact and provide direction indications. We previously proposed a wearable robot that can provide physical contact for elderly support in outdoor situations. In our current scheme, wearable message robots, which we mounted on the user’s upper arm, give such messages to users as navigational information, for example. Using physical contact can improve relationships between users and robots. However, our previous prototypes have a problem because the types of tactile expressions (that the robots can make) are limited. Thus, we propose a tactile expression mechanism using a pneumatic actuator array for wearable robots. Our proposed system consists of four pneumatic actuators and creates such haptic stimuli as direction indications as well as stroking a user’s arm. Our wearable robots were originally designed as appropriate support and communication for two types of physical contact: notification and affection. Our proposed mechanism for physical contact and direction indications naturally extends not only notification but also the affection abilities of the robot. Our robots and our proposed mechanism are expected to support the mobility of senior citizens by reducing their anxiety on outings.

DOI： 10.1007/978-3-319-58463-8_39

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Association for Computing Machinery, Inc  

This paper proposes an interactive attraction system, "Groveling on the Wall," which provides an experience of groveling on the walls/ceilings of a virtual building with a gravity illusion (Figure1). To create a gravity illusion for the system, which is safer than real experiences, we developed two physical mechanisms: the groveling interface and the gradient controls of the user's body. We prepared 1) gradient controls of both the user's back and head, and 2) sud- den fall control of the user's head. The groveling interface detects the rotations of four caterpillar belts for both legs and hands. The virtual world visualized in an HMD (Head-mounted Display) cor- responds to the user's state. The proposed system gives the user a special sense of groveling on the walls/ceilings, with direct fear of falling and preliminary fear of sliding down when the user tries to move forward.

DOI： 10.1145/3005274.3005304

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Association for Computing Machinery, Inc  

We introduce a virtual ski jump system as indoor, experience-based entertainment. The goal of this system is an exciting, enjoyable, safe experience for an inexperienced person. The key of the system is the physical stimuli from below for realistic experience compared to other conventional systems. First, the variation of slope angle creates the illusions of slide down on the arc-slope. Second, the pendant of skis while jumping create a sense of gliding with the difficulty to keep the left-right balance.

DOI： 10.1145/3005274.3005282

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Authorship：Last author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Association for Computing Machinery, Inc  

In this research, we focus on physiological phenomena expression of robots, propose the Body-Emotion Model (BEM), which concerns the relationship between the internal states of robots and their involuntary physical reactions. We expect that the robot will be able to express the delicate nuances of its intention by controlling robots' emotions and feelings with each individual parameter based on BEM. We propose a stuffed-toy robot system, BREAR, which has a mechanical structure to express breathing, heartbeating, temperature, and bodily movement. The breathing mechanism commonly controls the abdominal motion, breathing motion, and air flows of breath. In this paper, we focus on robot's breathing, verify two subjective evaluations: 1) the user's sense that the robot was alive and 2) the perceived states of the robot based on its breathing speed. The results showed that our proposed method of breathing expression can show a state of living and that the breathing speed was interpreted as the robot's emotion of arousal.

DOI： 10.1145/2974804.2974817

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Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Association for Computing Machinery, Inc  

This paper proposes an interactive manager agent system that adjusts schedule among multiple persons through negotiations on behalf of a human organizer, such as a steward or team manager. In order to increase the users' cooperative decision-making, we implemented the manager agent that negotiates with each member on the schedule using 1) the suitable attitude depending on current situation and partner of negotiation and 2) the graphical representation of background negotiations between the agent and the other users: a) the other users' icons, b) the blinking balloons of both the other users and the agent, and c) the agent's looking-back actions for the other users' icons. The results of the evaluations showed that both the individual use and the combination of the proposed expressions could make the participants feel i) as though there were under-going negotiations between the agent and the other users and ii) as though the agent had both the effort and compassion to the user. Moreover, the user's cooperative decision-making was increased by the proposed method.

DOI： 10.1145/2974804.2974812

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Authorship：Lead author,　Last author   Language：Japanese   Publishing type：Research paper (other academic)  

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：SPRINGER-VERLAG BERLIN  

In this paper, we introduce an auditory browsing system for supporting one-to-many communication in parallel with an ongoing discourse, lecture, or presentation. The live reactions of audiences should reflect the main speech from the viewpoint of active participation. In order to browse numerous live comments from audiences, the speaker stretches her/his neck toward a particular section of the virtual audience group. We adopt the metaphor of "looking inside" toward the direction of the seating position with repositioned and overlaid audiences' voices corresponding to the length of the voice regardless of the seating of real audiences. As a result, the speaker could browse the comments of the audience and show the communicative behaviors when she/he was interested in a particular group of the audience's utterances.

DOI： 10.1007/978-3-319-20804-6_21

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：SPRINGER-VERLAG BERLIN  

In this paper, we propose a nonverbal, descriptive method for creating daily life logs, in text format, on behalf of people who require monitoring and/or assistance in taking care of themselves. The users environmental situations are converted into and recorded as onomatopoeic texts in order to preserve their privacy. The users ambient context is detected by the accelerometer, gyro sensor, and microphone in her/his smart device. We propose a soft monitoring system that utilizes nonverbal expressions of both onomatopoeic text logs and symbolic sound expressions that is named Soundgram. We have investigated impressions regarding the monitoring of the elderly and the proposed system via a questionnaire distributed to two groups of potential users, the elderly and middle-aged people, which captures the viewpoint of both the recipient and the caregiver.

DOI： 10.1007/978-3-319-20804-6_46

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

In this paper, we introduce a unique combination of multiple involuntary expressions on the skin of a robot; namely, goose bumps, sweats, and shivers, which represent instinctive fears of the anthropomorphic presence. Humans and other living beings express not only voluntary but also involuntary modalities, including physiologic reactions. We expected these fake-involuntary expressions of a robot to realize the life-like or human-alike presence of the robot. In this research, we focused on the unique expression of a strong fear represented not only by the facial expressions but also by the combination of involuntary goose bumps, sweats, and shivers, and so on. Our proposed method utilizes multiple thin rods under the robot's skin to generate the goose bumps. A vibration motor and a water tank with a balloon are also attached to the system to create combined expressions. The results of the evaluation showed the effectiveness of the combination of three different involuntary expressions and the different nuances of the expression through a variety of unique combinations.

DOI： 10.1109/URAI.2015.7358970

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Association for Computing Machinery  

In this paper, we propose an AR environment in which multiple users can synchronously share and see AR contents based on our proposed animation markers with time-sequence information. Many AR systems have been proposed, some of which consider simultaneous use by multiple users. However, these systems re- quire a synchronization mechanism among users (devices) for simultaneous displaying. Such mechanisms complicate the systems. Thus, we propose an animation marker that can transmit temporal (frame) information in a synchronized AR environment among multiple users using our animation markers.

DOI： 10.1145/2671015.2671128

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Association for Computing Machinery, Inc  

In this paper, we introduce a wearable message robot that transmits messages to the user and alerts him/her immedi-ately and affectionately through physical contact. This robot is aimed at supporting elderly people who would like to par-ticipate in outings but suffer from anxiety. The system cre-ates haptic stimuli corresponding to the user's clothing and posture. We implemented two versions of the system: the first combines haptic stimuli and anthropomorphic motion to express physical contact, while the second is a simplified sys-tem for application on smartphones to provide ubiquitous ser-vices.

DOI： 10.1145/2658861.2658883

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Association for Computing Machinery, Inc  

In this paper, we propose a virtual agent system that introduces the current news on the Webs depending on the user's reactions to the understanding. We focused on the gesture of the user to estimate the user's state of understanding based on the head motion. The goal of the research is the user's understanding of the news regardless of the knowledge level. The system controls 1) the level of the news content corresponding to the user's gesture of inclining her/his head and 2) the audibility of the agent's speech (the volume and the speed) by the user's head motion to turn her/his ear to the agent. The results of the evaluations showed the effectiveness of the interactive change of the reading behaviors to be understandable and audible.

DOI： 10.1145/2658861.2658877

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：English   Publishing type：Research paper (scientific journal)   Publisher：The Science and Information (SAI) Organization  

Elderly people need to urinate frequently, and when they go on outings they often have a difficult time finding restrooms. Because of this, researching a body water management system is needed. Our proposed system calculates timing trips to the toilet in consideration with both their schedules and the amount of body water needing to be expelled, and recommends using the restroom with sufficient time before needing to urinate. In this paper, we describe the suggested methods of this system and show the experimental results for the toilet timing suggestion methods.

DOI： 10.14569/ijacsa.2014.051020

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Other Link： http://id.nii.ac.jp/1001/00112458/

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Other Link： http://id.nii.ac.jp/1001/00112457/

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Other Link： http://id.nii.ac.jp/1001/00112454/

Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Authorship：Last author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Institute of Electrical and Electronics Engineers Inc.  

This paper proposes a stuffed-toy device as an outlet target of a user's mental burden. When the user touches/hugs the stuffed toy, the script of the stuffed toy is post on an SNS, such as Twitter. We aim for an indirect and unforced communication among other participants in SNS through the scripts of a stuffed-toy device that shows sympathetic understanding during user's mood recognition.

DOI： 10.1109/SCIS-ISIS.2014.7044832

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)   Publisher：The Institute of Electronics, Information and Communication Engineers  

In this paper, we propose an auditory reproduction method of virtual three-dimensional sounds in real space, especially in large space such as lecture rooms or public spaces, using individual mobile devices. Smartphones and tablet devices have each microphone and each speaker in each body. If multiple participants with mobile devices make sound in appropriate places, virtual three-dimensional sounds can be reproduced in the space. Considering the network delays and computing time-lags among the devices, we employed a synchronizing method using sound in non-audible frequency bands. The control of the sound regeneration is sent by WebSocket to the appropriate devices corresponding to the placements of them.

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)   Publisher：The Institute of Electronics, Information and Communication Engineers  

In this paper, we introduce an investigation of relationship between the music tune and the movement of human body during musical performance. When humans are listening to or playing music, they show their unconscious or conscious bodily movements differed by various music tunes. Our system detects characteristic bodily motions using Kinect. Especially we focused on the movement of the center of gravity of the upper body. We hypothesized and tried to find that explicit characteristic of tempo and speed of music changes the bodily motions of performers and audiences. Additionally we built a music performance system using the user's bodily motion to change speed, volume, and explicit characteristic, as an inverse application of this research.

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)   Publisher：The Institute of Electronics, Information and Communication Engineers  

In this research, we propose a communication method of animating visual symbols, such as pictograms, based on story-telling procedures. The animation flow is adopted for the expression of weblogs. We focused on physical movements of verbs. The verbs are expressed in each visual symbol with each bodily part. To make the expression comprehensive, the animation movement focusing on the bodily part related to the verb is expected to engage a common understanding of various people. We held a preliminary experiment to verify whether the user's imagination was expanded by our animation method of visual symbols compared to the original sentence.

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)   Publisher：The Institute of Electronics, Information and Communication Engineers  

In this research, we propose one-to-many communication method using parametric speakers in a large space such as lecture rooms. In parallel with a normal communication from a speaker, she/he can make extra vocal messages to particular audiences at the same time without interrupting her/his talk. The parametric speaker is applicable for aiming a particular direction to make a sound, so we adopt the speaker to make a participant in crowd to listen to the sound that is not so loud for other participants. To select the directions of the parametric speakers, AVR controllers are used for servo controls.

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)   Publisher：The Institute of Electronics, Information and Communication Engineers  

In this study, we propose a virtual reconstruction system of auditory environments in live performance for band practices in a rehearsal studio. Sound sources of each instrument are re-arranged in three-dimensional audio by a head-related transfer function. We also implemented graphical spectator agents for realistic reproduction of live environments. When musicians perform band practice, they should assume auditory environments in real live performance even they are in studio conditions. However, the monitor environment in rehearsal studio is so different from that of live performance; the placements of instruments and performers, their auditory relationship, and spatial reflections are different although music tunes are same. The auditory experience like in real performance is important to make active performance without hesitation or unreasonable feelings.

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Authorship：Last author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE Computer Society  

We propose an expressive breathing method for a robot in accordance with its utterances. The synchronized expression is expected as a new physical modality to become like a living presence. Especially when the human-robot distance is near in intimate communications, anthropomorphized presences should naturally imitate activities of living beings, such as breathing. A stuffed-toy robot contains a speaker and a fan motor in its head to make simultaneous expressions of breathing and vocal sounds. The strength of the breath is determined by the total volume and power in the high frequency band.

DOI： 10.1145/2559636.2563704

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Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE Computer Society  

In this paper, we propose an involuntary expression of embodied robots by adopting goose bumps. The goose bumps are caused by not only external stimuli such as cold temperature but also the internal state of the robot such as fear. For more natural anthropomorphism, the combination of involuntary and voluntary expressions should enable realistic animacy and life-like agency. The bumps on the robot's skin are generated by changing lengths of thin rods from each hole. The lengths are controlled by a servo motor which pulls nylon strings connected to the base of thin rods.

DOI： 10.1145/2559636.2563703

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

We propose a real-time polygon reduction method for online reproduction of a three-dimensional spatial model using image processing. Currently, Microsoft Kinect is a popular device for capturing a wide-area and detailed depth image. When producing 3D data reconstruction from the depth image and the RGB image as well as when transmitting 3D data in real-time, it is important to reduce the data size. In this paper, we introduce a polygon reduction method that uses line detection for architectural surfaces and their joint lines in an RGB image. The system discards most of the depth information, leaving the representative value of the surface with part of the RGB image. The remaining data are used to reconstruct simple polygon data drawn by point-cloud or texture mappings. From the operation test of our proposed method, it is confirmed that the polygon reduction could reduce data without increasing the time duration of 3D reconstruction.

DOI： 10.1109/SCIS-ISIS.2014.7044670

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

This paper introduces the Eli-Taso system, an interactive agent that dialogically conveys news and topics corresponding to the user's reactions. News and BBS contents have hierarchical data structures by categories. In order to support Web browsing without wandering among extensive information, the agent provides simple dialogs with some content to the user. The dialog-based system is expected to enable a natural conversation without consciousness of a wide array of topics. From the experiment, conversational interaction was generated by the selection of the simple reply, either "yes" or "no," while the smoothed browsing was sacrificed.

DOI： 10.1109/SCIS-ISIS.2014.7044831

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

CiNii Books

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Other Link： http://id.nii.ac.jp/1001/00096801/

Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

CiNii Books

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Other Link： http://id.nii.ac.jp/1001/00096799/

Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

CiNii Books

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

In this paper, we propose a portable robot to express physical contacts that are parallel to other modalities. It enfolds the user's arm in its arms and tapping the user's arm. The physical contact expressions are generated through a combination of several haptic stimuli and the robot's anthropomorphic behaviors based on its internal state. The aim of our research is building a caregiver-like robot medium. The system was designed for gentle and delicate communication between the user and the robot during a user's outings. The haptic stimuli express warm/cold, patting, and squeezing. Experimental results show that haptic communicative behaviors of the robot increase the intelligibility to the robot's messages and familiar impressions to the robot.

DOI： 10.1109/IROS.2013.6697179

Web of Science

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE Computer Society  

We propose 'Mixticky,' a scheme for browsing and recording memorandum-like sticky notes in a three-dimensional virtual space around a user with a smartphone. For intuitive browsing and recall of such memos and information, it is important to achieve browsability and contemporaneousness of the memos/information. Mixticky allows the user to place and peel off memos on a virtual balloon around her/him corresponding to each relative direction (e.g., front, left, or 45° from front to right). The user can record and browse voice, movie, image, handwriting, and text memos as virtual sticky notes in each direction by pointing the phone. The system employs snapping gestures with the smartphone as metaphors for the 'put' and 'peel off' motions corresponding to a physical sticky note. The virtual balloon can be carried in various scenarios so that the user can easily resume her or his thought processes anywhere. © 2013 IEEE.

DOI： 10.1109/ACPR.2013.69

Scopus

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：English   Publishing type：Research paper (international conference proceedings)  

CiNii Books

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Language：English   Publishing type：Research paper (international conference proceedings)  

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：SPRINGER-VERLAG BERLIN  

In this paper, we propose a new method to manipulate objects by using user's pre-motion in a VR environment. Users are provided with an instinctually easy interface to VR with using their natural behaviors as their commands for manipulating VR objects. Hand pre-shaping is known as human's unconscious behavior to face a small object to be grasped. The definitions of pre-motions are determined by users' initial behaviors. Therefore, we present the definitions to classify characteristics of the kinds of objects and pre-motions. Using the above definitions, we develop a prototype system to validate the classifications. Consequently, manipulating VR objects by pre-motion is possible and promising.

Web of Science

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Language：English   Publishing type：Research paper (international conference proceedings)  

We are researching and developing the toilet timing suggestion method for the elderly in order to support their comfortable outing because the elderly are likely to experience frequent urination and often encounter the difficult situation of searching for a restroom with holding their water. Our proposed system calculates the toilet timing in consideration with both their outing schedule and the amount of body water of them, and recommends going to a restroom sufficiently before they feel the need of urinating. In order to implement the system, we've come up with the physiological formula for non-invasive estimation of the amount of body water, and based on the estimation, the toilet timing is calculated. Also, we've devised the suggestion method of the toilet timing to the elderly in order both not to interfere their things to do while their outing and not to be ignored by them. In this paper, we describe our proposed system, and show the experimental result for evaluating both the toilet timing calculation and the suggestion method. © 2012 IEEE.

DOI： 10.1109/ICCI-CC.2012.6311144

Scopus

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：SPRINGER-VERLAG BERLIN  

In this paper, we propose a multi-resolution display method for digital archives of cultural properties using polygon reconstruction. When digital archives of cultural properties are displayed in VR systems for research purpose, mesh resolution had to be changeable on the demand of user. Additionally, for user's comfortability, polygon reconstruction needs to be executed in real-time. History of preliminary polygon reductions is adopted for the proposed method so that polygon reconstruction is executed in real-time. To validate the VR system using the polygon reconstruction based multi-resolution display method, some experiments are performed. As the result of the experiments, the proposed method is performed within 1.0 second, which is considered as "real-time" by the definition of typical user-interface.

Web of Science

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：The Institute of Electronics, Information and Communication Engineers  

CiNii Books

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Language：Japanese   Publishing type：Research paper (other academic)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

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