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Shigeaki Maruyama


Publications by Shigeaki Maruyama (bibliography)

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Tobita, Hiroaki, Maruyama, Shigeaki and Kuzi, Takuya (2011): Floating avatar: telepresence system using blimps for communication and entertainment. In: Proceedings of ACM CHI 2011 Conference on Human Factors in Computing Systems 2011. pp. 541-550. http://dx.doi.org/10.1145/1979742.1979625

We developed a floating avatar system that integrates a blimp with a virtual avatar to create a unique telepresence system. Our blimp works as an avatar and contains several pieces of equipment, including a projector and a speaker as the output functions. Users can communicate with others by transmitting their facial image through the projector and voice through the speaker. A camera and microphone attached to the blimp provide the input function and support the user's manipulation from a distance. The user's presence is dramatically enhanced compared to using conventional virtual avatars (e.g., CG and images) because the avatar is a physical object that can move freely in the real world. In addition, the user's senses are augmented because the blimp detects dynamic information in the real world. For example, the camera provides the user with a special floating view, and the microphone catches a wide variety of sounds such as conversations and environmental noises. This paper describes our floating avatar concept and its implementation.

© All rights reserved Tobita et al. and/or their publisher

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Poupyrev, Ivan and Maruyama, Shigeaki (2003): Tactile interfaces for small touch screens. In: Proceedings of the 16th annural ACM Symposium on User Interface Software and Technology November, 2-5, 2003, Vancouver, Canada. pp. 217-220. http://doi.acm.org/10.1145/964696.964721

We present the design, implementation, and informal evaluation of tactile interfaces for small touch screens used in mobile devices. We embedded a tactile apparatus in a Sony PDA touch screen and enhanced its basic GUI elements with tactile feedback. Instead of observing the response of interface controls, users can feel it with their fingers as they press the screen. In informal evaluations, tactile feedback was greeted with enthusiasm. We believe that tactile feedback will become the next step in touch screen interface design and a standard feature of future mobile devices.

© All rights reserved Poupyrev and Maruyama and/or ACM Press

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Poupyrev, Ivan, Maruyama, Shigeaki and Rekimoto, Jun (2002): Ambient touch: designing tactile interfaces for handheld devices. In: Beaudouin-Lafon, Michel (ed.) Proceedings of the 15th annual ACM symposium on User interface software and technology October 27-30, 2002, Paris, France. pp. 51-60. http://doi.acm.org/10.1145/571985.571993

This paper investigates the sense of touch as a channel for communicating with miniature handheld devices. We embedded a PDA with a TouchEngine -- a thin, miniature lower-power tactile actuator that we have designed specifically to use in mobile interfaces (Figure 1). Unlike previous tactile actuators, the TouchEngine is a universal tactile display that can produce a wide variety of tactile feelings from simple clicks to complex vibrotactile patterns. Using the TouchEngine, we began exploring the design space of interactive tactile feedback for handheld computers. Here, we investigated only a subset of this space: using touch as the ambient, background channel of interaction. We proposed a general approach to design such tactile interfaces and described several implemented prototypes. Finally, our user studies demonstrated 22% faster task completion when we enhanced handheld tilting interfaces with tactile feedback.

© All rights reserved Poupyrev et al. and/or ACM Press

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