Current gesture recognition systems exist some issues such as high complexity algorithm

inconvenient for embedded transplant. A gesture recognition algorithm based on depth image is proposed. Pretreat depth image from SR4000 to get goals and skeletonized. Extract coordinates and ground clearance of endpoint

calculate skeleton linear distance

identify endpoint based on skeleton linear distance so as to recognize a large number of gesture after connection with certain features. Eight actions of traffic police as an example to verify the algorithm.Experiments show that the algorithm has low complexity and high identify rate.