Detection method of football rotation speed based on the capture of markers

Abstract

The invention relates to a method for detecting football rotating speed based on catching markers, which is characterized in that a first and a second high-speed cameras, a high performance workstation and a football are included; the software of Visual Studio 2015, OpenCV and a football rotating speed detection system are installed in the high performance workstation, wherein the first high-speed camera is arranged at the side of a goal and the second high-speed camera is arranged over the goal and goal lines; the top surface and the bottom surface of a football are respectively provided with a dot, the left surface of the football is provided with a triangular point, the right surface of the football is provided with a square point, the front surface of the football is provided with a triangular point, and the rear surface of the football is provided with a square point; one group is made up of a dot, a triangular point and a square point which are of the same color, and the triangular point is close to the square point in the group, while the other is made up of a dot, a triangular point and a square point which are of the same color. The method for detecting the football rotating speed based on catching the markers has the advantages of being capable of detecting football rotation and flying arcs of the football, lower in cost, strong in practicability, more accurate in detection structure and the like.

Description

technical field [0001] The invention relates to a method for detecting the rotational speed of a football based on capturing markers. Background technique [0002] At present, the shooting parameters of football are generally measured by radar. [0003] Radar speed measurement is to obtain the moving speed of the measured object based on the calculation of the frequency shift of the received reflected wave; that is, to set up a radar transmitter next to the road, transmit the radar beam to the flying football, and then receive the reflected echo. The ball speed is measured by echo analysis, and then calculated according to the speed. The disadvantages of this scheme are as follows: [0004] 1. As a detection target, it is difficult to detect accurately because the football is too small; [0005] 2. Due to the changeable flight direction of the football, it is difficult to detect accurately; [0006] 3. In the football shot detection system, in addition to the speed, the a...

AI Technical Summary

Problems solved by technology

[0004] 1. As a detection target, it is difficult to detect accurately because the football is too small;

[0005] 2. Due to the changeable flight direction of the football, it is difficult to detect accurately;

[0006] 3. In the football shooting detection system, in addition to the speed, the shooting angle and arc are also important parameters to measure, but this solution is difficult to detect the shooting angle and arc of the football flight

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