15. The gesture recognition system according to claim 14 , wherein the scope where the hand is most likely to appear refers to a scope with a number of the appearing skin pixels greater than a threshold.
14. The gesture recognition system according to claim 1 , wherein in template matching, several predetermined equally divided positions of the gesture template in the edge part are first searched to find out a scope where the hand is most likely to appear, and then a fine template matching is performed on the scope.