A system and method for constructing three-dimensional images using camera-based gesture inputs of a system user. The system comprises a computer-readable memory, a video camera for generating video signals indicative of the gestures of the system user and an interaction area surrounding the system user,...http://www.google.com.tw/patents/US6195104?utm_source=gb-gplus-share專利 US6195104 - System and method for permitting three-dimensional navigation through a virtual reality environment using camera-based gesture inputs
