Intuitive manipulation techniques for projected displays of mobile devices

Authors:
Kosuke Miyahara;Hiroshi Inoue;Yuji Tsunesada;Masanori Sugimoto
Affiliations:
University of Tokyo, Chiba, Japan;University of Tokyo, Chiba, Japan;University of Tokyo, Chiba, Japan;University of Tokyo, Chiba, Japan
Venue:
CHI '05 Extended Abstracts on Human Factors in Computing Systems
Year:
2005

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Abstract

Mobile devices (cellular phone, PDA, etc.) used by many people in their daily lives have so far been personal tools. Due to their multi-functionality, however, the devices have begun to be used by multiple people in co-located situations. This paper discusses near future technologies: a mobile device with a projector and intuitive manipulation techniques by using a video camera mounted on the device. It is difficult to realize a mobile device with a small and light projector that still retains the feature of mobility, so we have developed a system to project displays of mobile devices by tracking their three-dimensional positions and orientations. The proposed system called Hotaru (a firefly, in English) allows users to annotate, rotate or transfer files between multiple devices by touching their projected displays with fingers.