Implicit Modeling of Hands Taking Anatomical Structures and Their Behaviors into Account

Abstract

Hands are particularly eye-catching regions from the first-person point of view as well as from the second and third, because they most frequently interact with surrounding objects. General CG models consist of surface mesh and bones, whereas there exist organs such as tendons and muscles inside real hands. Their motion such as muscular contraction effects a change in the appearance of hands’ surface, and thereby moves characters more dynamically, which cannot be realized only with weighted mesh’s vertices for each bone. In this work, we propose a method to represent internal structures of hands as scalar functions and to implicitly model the hands’ surface based on the motion of internal structures.