Avatars based Chinese Sign Language Synthesis System

A Chinese sign language synthesis system is proposed in this paper. H-Anim standard of VRML is adopted to describe the avatar. The traditional reverse kinematics resolution algorithm is employed and constraints of the elbow position are considered to make the editing of hand shapes and arm gestures efficient. Various interpolation methods are used for the motion of joints that have different degrees-of-freedom. The Chinese sign language synthesis system is implemented as a Web service which can be accessed by 3^rd-party applications. It has been applied in sign language teaching and sign language translation.