Abstract
This paper discusses the evaluation of human skin dynamic characteristics by using the dynamic sensing system composed of an air jet supply for imparting a force to human skin, a line laser for making a line mark on skin surface, and a high speed camera for measuring skin deformation. To evaluate skin dynamic characteristics, we newly introduce the Deformation Shape Index (DSI=b1/2/d) where d and b1/2 are the defbrmation of the center and the half width at1/2d. We newly found that DSI recovers quickly for young subjects while it recovers slowly forseRior subjects.
