This paper describes a new approach for modeling the human hand by consider
ing the dynamics and the natural constraints of the motion and the shape of
hands. This hand model consists of a dynamic model and a surface model. Th
e dynamic model is used to generate the posture of a hand. We show that the
natural hand posture can be generated even when only a few hand parameters
are available. The surface model is used to generate the hand shape based
on the posture given by the dynamic model. The surface model is built based
on the digitized three-dimensional shape of a real hand. (C) 1999 Elsevier
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