Human body behavior action fast recognition method and device

The invention discloses a human body behavior action fast recognition method and device. The recognition method includes the steps of extracting contours, acquiring key frames, calculating characteristic operators, setting thresholds and the like, and human body behavior actions are classified according to comparison analysis between the characteristic operators and the thresholds; the recognition device is composed of a movement contour acquiring unit, a behavior model establishing unit and a movement recognition unit. The method and device has the advantages of being simple, efficient, reasonable in use and the like. The matching calculation amount can be reduced, the matching calculation time can be shortened and the real-time performance and the accuracy of behavior action recognition can be improved.