Sit-up detection system and method based on human body and skeleton key point recognition

The invention discloses a sit-up detection system and method based on human body and skeleton key point recognition, and the system comprises an image collection module which employs a high-definitioncamera to collect a video image of a testee; the image recognition module which is used for extracting human skeleton key points of the testee in the continuous frames; the action detection module which is used for detecting the change condition of an included angle formed by a straight line formed by the waist key points and the shoulder key points and a relative horizontal position of the skeleton key points of the human body of the testee in the continuous frames to judge whether the testee lies down or sits down or sits down; the judging and counting module which is used for judging and recording the frequency of completing sit-up of the testee within the testing time; and the data display module which is used for displaying the frequency of sit-ups completed by the testee within thetest time. The method is h