We proposed a simple but efficient remote pointing method for large tabletop systems using a pinching gesture with a thumb and a forefinger. The proposed method uses a control-display (C-D) ratio that dynamically changes depending on the height of the user's hand. The user can intuitively control the speed of the pointer and its travel distance by changing his hand position in 3-D. The method can also be used in a multi-user environment. We applied the method to a photo viewer application.

- Naoya Tochihara, Toshiki Sato, and Hideki Koike. A Remote Pointing Method with Dynamic C-D Ratio during a Pinching Gesture for Large Tabletop Systems. In Proceedings of the 2016 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA '16). ACM, 553-559, 2016. (PDF)