Hand shape recognition system base on finger contour difference

A hand shape recognition system was designed. In the system the ring lamp and blue background was used to improve the accuracy of the collected hand shape images. The closed box without retainer was designed to make the system more convenient and easier to carry. A novel algorithm based on the minimum match difference of the finger contour was proposed in the paper. Based on coordinate transformation, the optimal match position and the minimum contour match difference of the hand shape could be calculated, and then the identification could be achieved. Based on the hierarchical hand shape identification, the recognition speed could be accelerated. The experimental results show that the system has a higher recognition rate.