Dynamic Hand Gesture Recognition Using Kinematic Features Based on Hidden Markov Model

The ability to recognize humans and their activities by vision is a key for a machine to interact intelligently and effortlessly with a human machine interface environment. In this paper, we exploit multiple cues including divergence features, vorticity features, and hand motion direction vector. Divergence fields and vorticity fields are derived from the optical flow for hand gesture recognition in hand gesture videos. We perform principle component analysis method to extract their features, and find the hand cancroids position for all frames by using hand tracking algorithm, acquire the motion direction vector. At last, we use the traditional HMM to verify these features. In our experiments, we had experimented 12 isolated gestures. The experimental results show these features have good performance.