Abstract
We propose a novel force sensor that detects the force distribution as well as its position, rotation and ID. In previous optical force sensors, an elastic body and cameras are fixed together. Contrarily, on our system, users can move tile-shaped elastic bodies freely on a flat face. The sensing process is as follows : first, the system detects its position, rotation and ID of each interface face by position markers attached on their bottom surfaces. Then, it calculates the force vectors on each interface by using cameras.