In past decades, with the development and popularity of motion capture
device, human motion capture including motion data processing and retrieval
has attracted increasing attention from many researchers [1-15]. There is a
rapidly growing data of human motion, and the reuse of human motion
capture data is becoming a practical task. However, because of the lack of
general and efficient motion retrieval systems, the reuse of the motion data is
limited by many problems and the investigation of motion data retrieval
approaches is still a hot issue.