Human’s Gesture Recognition and Imitation Based on Robot NAO

Abstract

Based on Kinect platform, human's gesture recognition and imitation were realized by humanoid robot NAO in this paper. The hardware system structure of Kinect platform and the principle of human skeleton extraction were mainly introduced firstly. From the image, Kinect camera gets the skeletal point information which is used to compared with preset posture of the skeletal information. Through calculate the angle between the different bones, the computer obtains the human's posture and sends the instructions to the robot. In the physical experiments, NAO robot receives the pre-programmed corresponding action instructions and imitates the corresponding motions of humans.