Hand gesture recognition enhancement based on spatial fuzzy matching in Leap Motion

Gesture recognition is an important human–computer interaction interface. This article introduces a novel hand gesture recognition system based on Leap Motion gen.2. In this system, a spatial fuzzy matching (SFM) algorithm is first presented by matching and fusing spatial information to construct a fused gesture dataset. For dynamic hand recognition, an initial frame correction strategy based on SFM is proposed to fast initialize the trajectory of test gesture with respect to the gesture dataset. A notable feature of this system is that it can run on ordinary laptops due to the small size of the fused dataset, which accelerates the calculation of recognition rate. Experimental results show that the system recognizes static hand gestures at recognition rates of 94%–100% and over 90% of dynamic gestures using our collected dataset. This can greatly enhance the usability of Leap Motion.