Method and system for judging attack and defense of team in football match video

The invention discloses a method for judging the attack and defense of a team in a football match video, and the method comprises the following steps: inputting a video frame of a to-be-judged video into a detection model for detection, and obtaining personnel detection box data, football detection box data and goal detection box data corresponding to the video frame; obtaining color feature data of each person in the corresponding video frame according to the person detection frame data, performing clustering analysis on the color feature data, and judging whether the person in the video frame is a judgment, a goalkeeper or a player of a corresponding team according to a clustering analysis result and the goal detection frame data; and extracting personnel detection frame data judged to be players, calculating and counting according to the personnel detection frame data judged to be players and the football detection frame data to obtain ball holding information of each team in all video frames, and performi