Court positioning system and method based on computer vision

Abstract

The invention discloses a court positioning system and method based on computer vision. The system comprises an acquisition equipment calibration module, a sideline detection module and a positioningcalculation module; the acquisition equipment calibration module obtains an external parameter matrix, an internal parameter matrix and a distortion matrix of the acquisition equipment; the sideline detection module detects the position of the sideline in the image; the positioning calculation module obtains positioning data of players or balls through calculation; and the system further comprisesa data recording and storing module. The court positioning method based on computer vision comprises the following steps: calibrating acquisition equipment, detecting court sidelines, performing positioning calculation, and recording and storing data. According to the system and the method, the players and the balls are positioned only by adopting the single video acquisition equipment, the system and the method are convenient and accurate to use, extra equipment worn by the players is not needed, the data about the movement states of the players can be acquired more easily, and great supportis provided for movement data analysis.

Description

technical field [0001] The present invention relates to a computer pitch positioning system, in particular to a pitch positioning system and method based on computer vision. Background technique [0002] In existing sports competitions such as football, basketball, tennis and table tennis, the physical fitness data of players, such as the distance and speed of movement on the court, as well as the distance and speed of movement of balls, are for players' data Analytics plays an important role. In order to obtain the moving distance and speed of the player on the court and the moving distance and speed of the ball, it is necessary to obtain the positioning of the player and the ball on the court at any time, so the court positioning system is very important. [0003] There are two ways for the existing stadium positioning system: the first is to obtain motion data through wearable sensors, but this method cannot allow players to wear wearable devices in the game due to the r...

AI Technical Summary

Problems solved by technology

[0003] There are two ways of the existing stadium positioning system: the first one is to obtain sports data through wearable sensors, but this method cannot be used in the game due to the restrictions of the rules, which cannot allow players to wear wearable devices; The second method is to perform three-dimensional space-time positioning and tracking algorithms for multiple base stations, which requires expensive and complicated equipment, which is not conducive to widespread popularization

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