Atsumi Imamiya
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Publications by Atsumi Imamiya (bibliography)
» 2009 «
Omata, Masaki, Kosaka, Masahiro and Imamiya, Atsumi (2009): A pen-tablet-orientation-pointing method for multi-monitors. In: Proceedings of CHINZ09, the ACM SIGCHI New Zealand Chapters International Conference on Computer-Human Interaction 2009. pp. 53-60. Available online
“This paper proposes a pen tablet orientation method for easily pointing anywhere on the screen of one of several monitors in a multi-monitor setup. With this method, a user selects the desired monitor by orienting a pen tablet toward it and then pointing within it with a stylus. This allows the user to similarly access the center and corners of a wide screen of multiple monitors and avoids losing the cursor in such a widescreen setup. The system is implemented with a pen tablet and a turntable and experiments are conducted to compare it with mouse and conventional pen tablet pointing. The results show that this method is more efficient and accurate than a conventional pen tablet and as effective as a mouse. The proposed method is also expected to be more efficient than a mouse once the user gets used to it.”
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» 2008 «
Lin, Tao, Maejima, Akinobu, Morishima, Shigeo and Imamiya, Atsumi (2008): Preliminary evaluation of the audience-driven movie. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 3273-3278. Available online
“In this paper we introduce an audience-driven theater experience, DIM Movie, in which audience participates in a pre-created CG movie as its roles, and report the subjective and physiological evaluations for the audience experience offered by DIM movie. Specifically, we present three different experiences to an audience-a traditional movie, its Self-DIM (SDIM) version with the audience's participation, and its Self-Friend-DIM (SFDIM) version with co-participation of the audience and his friends. The evaluation results show that the DIM movies (SDIM and SFDIM) elicit greater subjective sense of presence, engagement, and emotional reaction, and stronger physiological response (galvanic skin response, GSR) as compared with the traditional movie form; moreover, audiences show a phasic GSR increase responding to the appearance of their own or friends' CG characters on the movie screen.”
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Lin, Tao, Imamiya, Atsumi and Mao, Xiaoyang (2008): Using multiple data sources to get closer insights into user cost and task performance. In Interacting with Computers, 20 (3) pp. 364-374
“This pilot study explores the use of combining multiple data sources (subjective, physical, physiological, and eye tracking) in understanding user cost and behavior. Specifically, we show the efficacy of such objective measurements as heart rate variability (HRV), and pupillary response in evaluating user cost in game environments, along with subjective techniques, and investigate eye and hand behavior at various levels of user cost. In addition, a method for evaluating task performance at the micro-level is developed by combining eye and hand data. Four findings indicate the great potential value of combining multiple data sources to evaluate interaction: first, spectral analysis of HRV in the low frequency band shows significant sensitivity to changes in user cost, modulated by game difficulty -- the result is consistent with subjective ratings, but pupillary response fails to accord with user cost in this game environment; second, eye saccades seem to be more sensitive to user cost changes than eye fixation number and duration, or scanpath length; third, a composite index based on eye and hand movements is developed, and it shows more sensitivity to user cost changes than a single eye or hand measurement; finally, timeline analysis of the ratio of eye fixations to mouse clicks demonstrates task performance changes and learning effects over time. We conclude that combining multiple data sources has a valuable role in human-computer interaction (HCI) evaluation and design.”
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» 2007 «
Omata, Masaki, Matsumura, Kenji and Imamiya, Atsumi (2007): A Pressure-Sensing Mouse Button for Multilevel Click and Drag. In: Baranauskas, Maria Cecília Calani, Palanque, Philippe A., Abascal, Julio and Barbosa, Simone Diniz Junqueira (eds.) DEGAS 2007 - Proceedings of the 1st International Workshop on Design and Evaluation of e-Government Applications and Services September 11th, 2007, Rio de Janeiro, Brazil. pp. 434-446. Available online
» 2006 «
Hu, Wanhua, Lin, Tao, Sakai, Kazuo, Imamiya, Atsumi and Omata, Masaki (2006): Setup Consistent Visual Textures for Haptic Surfaces in a Virtual Reality World. In: Proceedings of the 9th ERCIM Workshop on User Interfaces for All 2006. pp. 78-87. Available online
“In the real world, interactions with objects are typically multimodal, involving two or more sensory modalities. To simulate the real world in virtual environments, it is thus important to provide multisensory input. Haptics are increasingly being employed as an input channel. However, different modal interfaces are artificially created in a virtual reality world. Does the visual information we provide about surfaces need to be consistent with their haptic representation? In this paper, we present the results of a haptic texture cognition experiment in which subjects judged the haptic size of regular dots. We found that visual texture information that was consistent with haptic information lead to a higher percentage of correct answers and shorter judging times. Furthermore, we found that participants relied on visual information as judgments became more difficult, even though they were asked to make decisions using haptic stimuli only.”
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Lin, Tao, Imamiya, Atsumi, Hu, Wanhua and Omata, Masaki (2006): Combined User Physical, Physiological and Subjective Measures for Assessing User Cost. In: Proceedings of the 9th ERCIM Workshop on User Interfaces for All 2006. pp. 304-316. Available online
“New technologies are making it possible to provide an enriched view of interaction for researchers using multimodal information. This preliminary study explores the use of multimodal information streams in evaluating user cost. In the study, easy, medium and difficult versions of a game task were used to vary the levels of the cost to user. Multimodal data streams during the three versions were analyzed, including eye tracking, pupil size, hand movement, heart rate variability (HRV) and subjectively reported data. Three findings indicate the potential value of multimodal information in evaluating usability: First, subjective and physiological measures showed significant sensitivity to task difficulty. Second, different user cost levels appeared to correlate with eye movement patterns, especially with a combined eye-hand measure. Third, HRV showed correlations with saccade speed. These results warrant further investigations and take an initial step toward establishing usability evaluation methods based on multimodal information.”
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Lin, Tao, Imamiya, Atsumi, Hu, Wanhua and Omata, Masaki (2006): Display Characteristics Affect Users' Emotional Arousal in 3D Games. In: Proceedings of the 9th ERCIM Workshop on User Interfaces for All 2006. pp. 337-351. Available online
“Large computer screens are becoming more and more popular among users, and field of view and physical screen size are important considerations for users and manufacturers. In this study, we investigated the impacts of visual angles and physical screen size on users' emotional arousal using subjective and physiological measures. The results suggest that larger visual angles cause greater galvanic skin responses (GSR), and the GSR data are mirrored in the subjective ratings of emotional arousal. We also found that physical screen size causes significant effects in subjective ratings. This study contributes to our understanding of how users interact with large displays and helps refine the requirements for what constitutes effective and desirable human-computer interaction (HCI).”
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Lin, Tao and Imamiya, Atsumi (2006): Evaluating usability based on multimodal information: an empirical study. In: Quek, Francis K. H., Yang, Jie, Massaro, Dominic W., Alwan, Abeer A. and Hazen, Timothy J. (eds.) Proceedings of the 8th International Conference on Multimodal Interfaces - ICMI 2006 November 2-4, 2006, Banff, Alberta, Canada. pp. 364-371. Available online
» 2005 «
Lin, Tao, Omata, Masaki, Hu, Wanhua and Imamiya, Atsumi (2005): Do physiological data relate to traditional usability indexes?. In: Proceedings of OZCHI05, the CHISIG Annual Conference on Human-Computer Interaction 2005. pp. 1-10. Available online
“Task performance data and subjective assessment data are widely used as usability measures in the human-computer interaction (HCI) field. Recently, physiology has also been explored as a metric for evaluating usability. However, it is not clear how physiological measures relate to traditional usability evaluation measures. In this paper, we investigated the relationships among three kinds of data: task performance, subjective assessment and physiological measures. We found evidence that physiological data correlate with task performance data in a video game: with a decrease of the task performance level, the normalized galvanic skin response (GSR) increases. In addition, physiological data are mirrored in subjective reports assessing stress level. The research provides an initial step toward establishing a new usability method using physiology as a complementary measure for traditional HCI evaluation.”
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» 2004 «
Zhang, Qiaohui, Imamiya, Atsumi, Go, Kentaro and Mao, Xiaoyang (2004): Overriding errors in a speech and gaze multimodal architecture. In: Nunes, Nuno Jardim and Rich, Charles (eds.) International Conference on Intelligent User Interfaces 2004 January 13-16, 2004, Funchal, Madeira, Portugal. pp. 346-348. Available online
“This work explores how to use the gaze and the speech command simultaneously to select an object on the screen. Multimodal systems have long been a key mean to reduce the recognition errors of individual components. But the multimodal system generates errors as well. This present study tries to classify the multimodal errors, analyze the reasons causing these errors, and propose the solutions for eliminating them. The goal of this study is to gain insight into multimodal integration errors, and to develop an error self-recoverable multimodal architecture so as to make the error-prone recognition technologies perform at a more stable and robust level within multimodal architecture.”
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Zhang, Qiaohui, Imamiya, Atsumi, Go, Kentaro and Mao, Xiaoyang (2004): Resolving ambiguities of a gaze and speech interface. In: Duchowski, Andrew T. and Vertegaal, Roel (eds.) ETRA 2004 - Proceedings of the Eye Tracking Research and Application Symposium March 22-24, 2004, San Antonio, Texas, USA. pp. 85-92. Available online
Zhang, Qiaohui, Go, Kentaro, Imamiya, Atsumi and Mao, Xiaoyang (2004): Robust object-identification from inaccurate recognition-based inputs. In: Costabile, Maria Francesca (ed.) AVI 2004 - Proceedings of the working conference on Advanced visual interfaces May 25-28, 2004, Gallipoli, Italy. pp. 248-251. Available online
» 2003 «
Luo, Zhaowu and Imamiya, Atsumi (2003): How do colors influence the haptic perception of textured surfaces?. In Universal Access in the Information Society, 2 (2) pp. 160-172
“Multimodality is considered a promising approach for universal access, and haptic interaction has the potential to constitute an added dimension to multimodal interfaces. This paper describes the influence of colors on the haptic perception of textured surfaces, based on 8 experiments. Our results show that (1) colors do have an influence on haptic perception, but they do not make the perception error rate higher than when no color is used; (2) up to 6 different types of colors can be used in haptic interfaces without worsening the haptic perception; (3) yellow has an error rate that is statistically significantly lower than that of 3 other color conditions, and can be used without worsening the haptic perception; (4) our finding of two special orders for haptic perception demonstrates that human haptic perception is very sensitive to continuously increasing or decreasing changes of roughness, but has difficulty discerning randomly changed roughness.”
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» 2000 «
Mao, Xiaoyang, Hatanaka, Yuji, Imamiya, Atsumi, Kato, Yuki and Go, Kentaro (2000): Visualizing Computational Wear with Physical Wear. In: Emiliani, Pier Luigi and Stephanidis, Constantine (eds.) Proceedings of the 6th ERCIM Workshop on User Interfaces for All October 25-26, 2000, Florence, Italy. p. 12. Available online
“Wear is an important source of information supporting our tasks in everyday life. This paper presents the idea of using wear as a new visual attribute for visualizing the computational wear of digital objects, which is defined as a set of attributes resulting from the history of user interactions on the digital objects. As a case study to investigate the feasibility of the proposed idea, we succeeded in visualizing the computational wear of WWW sites with the icons of physically worn appearance.”
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Omata, Masaki, Go, Kentaro and Imamiya, Atsumi (2000): A Gesture-Based Interface for Seamless Communication between Real and Virtual Worlds. In: Emiliani, Pier Luigi and Stephanidis, Constantine (eds.) Proceedings of the 6th ERCIM Workshop on User Interfaces for All October 25-26, 2000, Florence, Italy. p. 13. Available online
“This paper proposes a gesture-based direct manipulation interface that can be used for data transfer among informational artifacts. "Grasp and Drop (Throw)" by hand gestures allows a user to grasp an object on a computer screen and drop (throw) it on other artifacts without touching them. Using the interface, a user can operate some artifacts in the mixed reality world in a seamless manner, and learn this interaction style easily. Based on this interaction technique, we developed a prototype of presentation system using Microsoft PowerPoint, a wall size screen, computer screens and a printer. The presentation system with gestures allows a presenter to navigate through PowerPoint slides and transfer a slide from one computer screen to another. We conducted an experiment which evaluate the interaction style of gestures and analyzed the user's satisfaction with a questionnaire. The result shows that”
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Masuda, Hisanori, Imamiya, Atsumi, Go, Kentaro and Mao, Xiaoyang (2000): An Evaluation of a Graphical History Tool with an Eye Tracker. In: Emiliani, Pier Luigi and Stephanidis, Constantine (eds.) Proceedings of the 6th ERCIM Workshop on User Interfaces for All October 25-26, 2000, Florence, Italy. p. 6. Available online
“In this paper we describe a graphical undo/redo tool, which visualizes user's command history and evaluate it using a survey technique and empirically assess with respect to eye movements. Our tool is implemented as part of a drawing tool, what and how users look at are the essential information on evaluating its effectiveness. Therefore, we investigate user's gaze information during a visual searching task. The task is to search a target snapshot through looking at a window and manipulating its scroll bar. We have presented the first results of empirical evaluation's data. The results of primary evaluation show that the tool for visual search has been positive.”
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Mao, Xiaoyang, Kikukawa, Makoto, Kashio, Kouichi and Imamiya, Atsumi (2000): Automatic Generation of Hair Texture with Line Integral Convolution. In: IV 2000 2000. pp. 303-308. Available online
» 1998 «
Meng, Chii, Yasue, Motohiro, Imamiya, Atsumi and Mao, Xiaoyang (1998): Visualizing Histories for Selective Undo and Redo. In: Third Asian Pacific Computer and Human Interaction July 15-17, 1998, Kangawa, Japan. pp. 459-464. Available online
Mao, Xiaoyang, Hatanaka, Yuji, Higashida, Hidenori and Imamiya, Atsumi (1998): Image-guided streamline placement on curvilinear grid surfaces. In: IEEE Visualization 1998 1998. pp. 135-142. Available online
» 1997 «
Zhou, Chunbo and Imamiya, Atsumi (1997): Object-based Linear Undo model, Proceedings of the Proceedings of the IFIP TC13 International Conference on Human-Computer Interaction. In: Howard, Steve, Hammond, Judith H. and Lindgaard, Gitte (eds.) Proceedings of INTERACT 97 - IFIP TC13 Sixth International Conference on Human-Computer Interaction July 14-18, 1997, Sydney, Australia. pp. 252-259.
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Mar 21st, 2010
Changes to this page (author)
24 Feb 2010: Enabled abstracts to be shown on Atsumi Imamiya's author page.08 Sep 2009: Author was edited 25 Jul 2009: Author was edited
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28 Apr 2003: Added the author to the bibliography
