HandyScope: A remote control technique using pull-out gesture

A large multi-touch tabletop has remote areas that the users can not reach by their hands. This forces users to walk around the tabletop. In this paper, we present a novel remote control technique which we call HandyScope. This technique allows users to manipulate those remote areas. Moreover, users can transfer an object between a nearby area and a remote areas using the widget. In addition, users use pull-out, our own bimanual multi-touch gesture, both to invoke HandyScope, and to determine appropriate control- display ratio to point remote areas. This gesture allows multiple users to simultaneously manipulate remote areas without con ict with other touch gestures. To evaluate the performance of HandyScope, we com- pared HandyScope with direct touch operation. The results show that HandyScope is significantly faster in selection.