Patent ID: 8503731

Claim:
A sign language recognition system comprising: a depth-sensing camera to capture an image of a gesture of a signer in a line of sight of the depth-sensing camera, and gather data as to distances between a plurality of points on the signer and the depth-sensing camera; a processing unit; a storage unit connected to the processing unit and the depth-sensing camera, and storing a plurality of programs to be executed by the processing unit, wherein the storage unit comprises: a three dimension (3D) model building module to build a 3D model of the gesture according to the image of the gesture and the data about distances between the plurality of points in the scene and the depth-sensing camera; a gesture storing module storing a plurality of 3D models of gestures and representations for each 3D model; and a recognition module to compare the 3D model of the gesture obtained with the plurality of 3D models of gestures, to recognize the representations of the 3D model; and an output unit connected to the processing unit, to output the representations of the 3D model of the gesture; wherein the storage unit further comprises a voice conversion module to convert the representations of the 3D model of the gesture obtained by the 3D model building module into audible sounds; the output unit is a speaker to play the representations of the 3D model of the gesture obtained by the 3D model building module.