Memory Stones: An Intuitive Information Transfer Technique between Multi-touch Computers


Kaori Ikematsu, Itiro Siio

池松香, 椎尾一郎

We propose a novel direct manipulation technique for executing drag-and-drop operations between multi-touch devices is proposed. Under our interface concept, dubbed “Memory Stones,” a user can “pick up” a data object displayed on one device screen, “carry” it to another device screen, and “put it down” on that device using only their fingers. During this drag-and-drop operation, the user is invited to pantomime the act of carrying a tangible object (a “stone”) while keeping their fingertip positions unchanged. The system identifies both the source and target devices by matching the shape of the polygon formed by the fingertips when touching each respective screen. We have developed a prototype system for small-to-large sized multi-touch computers including smartphones, tablet PCs, laptops, and desktop PCs, and have carried out a preliminary evaluation of its feasibility.