Volleyball motion net touching detection method based on OpenPose

Abstract

The invention relates to a volleyball motion net touching detection method based on OpenPose. The method comprises the steps: performing edge detection-based segmentation on the image of the monitoring camera, and performing manual calibration on the volleyball net so as to obtain a point set of the volleyball net; identifying the video frame by adopting OpenPose to obtain a point set of human body posture points of the athletes in front of the net; judging whether the human body key points of the athletes are in an artificially calibrated ball network point set or not; if the key point is not in the net area, judging that the player does not touch the net; if the key point is in the net area, judging that the athlete touches the net; when the athlete touches the net, giving an alarm to prompt a referee. According to the method, the characteristic that the OpenPose can still solve problems under the condition that the human body is partially shielded or the background complexity is relatively high and the characteristic that the recognition thought is from bottom to top and the operation time can be effectively shortened under the condition of multiple persons can be utilized, a net touching detection method can be provided for volleyball sports, the pressure of the referee is relieved, and the fairness of the volleyball match is effectively improved.

Description

technical field [0001] The invention relates to the technical field of motion analysis, in particular to an OpenPose-based volleyball touch net detection method. Background technique [0002] In recent years, the sport of volleyball has become more and more popular among the masses. Volleyball is a sport that requires comprehensive technology and a high degree of skill. Every player must master various offensive and defensive skills. In volleyball, blocking can be said to be a necessary defensive technique for every round. Competition requirements stipulate that athletes cannot physically touch the net when blocking, otherwise it will be considered a foul, so it is particularly important to judge whether athletes touch the net during the game. But the referee not only judges whether someone touches the net, but also judges whether the ball is out of bounds and whether the player violated the rules. This will lead to the phenomenon that a player touches the net but the ref...

AI Technical Summary

Problems solved by technology

This will lead to the phenomenon that a player touches the net but the referee cannot find it in time. Therefore, it is necessary to propose a new technical solution to detect whether the player touches the net in real time, thereby reducing the burden on the referee and increasing the fairness of the game

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