The invention relates to a method and
system for detecting a
living body human face. The method comprises the steps of obtaining images from a shot
video sequence, detecting a human face in the video images, carrying out location on facial critical areas, randomly selecting one or more kinds of movements in a movement collection through a critical area detection classifier, randomly selecting the completing times of the movements, prompting a user, and determining the user as a
living body if the user completes the random selected movements for many times within an appointed time period, otherwise, determining the user as a non-
living body. According to the method and
system for detecting the living body human face, when living body detection is carried out, the
system randomly selects certain movements and randomly appoints the completing times of the movements every time, and therefore the user cannot pass the living body detection by using photos for
cheating. In addition, due to the fact that the detected items are selected randomly, the user cannot pass the living body detection through the mode of playing video clips. Therefore, the method and system for detecting the living body human face can better prevent
cheating behaviors in the mode such as the photos and the video clips in the living body detection, and the reliability and the safety of the living body detection are made to be higher.