Ball-free shield event identification method and device, computer equipment and storage medium

Abstract

The invention relates to a ball-free shield event identification method and device, computer equipment and a storage medium. The method comprises the following steps: receiving position frames of a target object based on a time sequence, and identifying position coordinates of the target object contained in each position frame; obtaining feature portrait models of the target objects, and updating the position coordinates in the feature portrait model of each target object according to the corresponding relationship between the feature portrait models of the target objects and the position coordinates in the position frames; according to the position coordinates in the feature portrait model of the ball and the position coordinates in the feature portrait model of the player, determining a ball holder, and according to the ball holder, determining the attack and defense states of the two teams on the competition field; and when the position relationship among the ball holding players of the attacking party, the attacking party players except the ball holding players and the defender players meets a preset position threshold value and the speeds of the ball holding players and the attacking party players meet a preset speed relationship, determining that a ball-free shielding event occurs. By adopting the method, the recognition accuracy of the ball-free shield event is improved.

Description

technical field [0001] The present application relates to the technical field of positioning analysis, in particular to a method, device, computer equipment and storage medium for identifying an off-ball screen event. Background technique [0002] In basketball games, off-ball screens between players are a very practical and common tactic, which can efficiently help off-ball players on the offensive side get out of the neutral position and prepare to receive the ball. [0003] However, off-ball screen events happen at any time on the field, even continuously or at the same time, and when off-ball screen actions occur, there are often positions overlapping or occlusion. Therefore, based on human eye observation or computer vision technology to identify or count off-ball It is very difficult to cover the occurrence of the incident. Contents of the invention [0004] Based on this, it is necessary to provide a method, a device, a computer device and a storage medium for iden...

AI Technical Summary

Problems solved by technology

[0003] However, off-ball screen events happen at any time on the field, even continuously or at the same time, and when off-ball screen actions occur, there are often positions overlapping or occlusion. Therefore, based on human eye observation or computer vision technology to identify or count off-ball It is very difficult to cover the occurrence of incidents

Images