タッチ動作を用いたミラーインタフェースにおける映像・応答遅延の影響

抄録

Some video mirror interface systems capture the user's body image and displays it at real-size on the screen in front of him/her. Some virtual objects overlap the video image and the user can select one of them by his/her touching action. The interface is usable for easy and intuitive interactions in various situations. This paper focuses on the influence of the delay time on the object selection or operation in the video mirror interface. There are two kinds of delay time in such operation: image feedback delay and system response one. The experimental result shows that the operation is more sensitive to the image feedback delay than to the system response one. The image feedback delay of 0.03 seconds affects the static target selection while the system response delay of less than 0.15 seconds does not affect the selection. Furthermore, a task to keep touching moving target is affected by the image feedback delay of O.03 seconds but it is not by the system response delay of 1.0 seconds.