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Standing long jump score measuring method and device based on video

A measurement method and long jump technology, applied in jumping equipment, gymnastics equipment, sports accessories, etc., can solve the problems of expensive measurement equipment, inability to review the standing long jump performance measurement, etc., to achieve convenient recording and verification, good application value, high precision The effect of the measurement results

Active Publication Date: 2022-04-12
XI AN JIAOTONG UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that the standing long jump performance measurement cannot be rechecked and the current measurement equipment is expensive, the present invention provides a video-based standing long jump performance measurement method and device

Method used

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  • Standing long jump score measuring method and device based on video
  • Standing long jump score measuring method and device based on video
  • Standing long jump score measuring method and device based on video

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Experimental program
Comparison scheme
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Embodiment 1

[0045] Such as figure 1 As shown, the standing long jump performance measurement device based on video provided by the present invention includes the following functions or modules: video acquisition module, test area extraction module, take-off and landing judgment module, landing point positioning module, performance measurement module and result display module.

[0046] The output end of the video acquisition module is connected with the input end of the test area extraction module, the input end of the take-off and landing judgment module, the input end of the landing point positioning module and the input end of the result display module, and the output end of the test area extraction module is connected with the take-off and landing judgment module. The input end of the landing judgment module is connected with the input end of the landing point positioning module and the input end of the performance measurement module, the output end of the take-off and landing judgment...

Embodiment 2

[0054] The flow chart of the standing long jump achievement measurement method based on video of the present invention is as figure 2 As shown, it includes video capture, test area extraction, attitude detection, attitude tracking, take-off and landing judgment, continuous positioning judgment, anti-occlusion judgment, landing point positioning, performance measurement and performance display.

[0055] In the video collection part, in order to improve the accuracy of the standing long jump performance measurement, a camera with a large resolution is selected for collection. In the experiment of this method, a camera with a resolution of 3264×2448 is used, the frame rate is 15 frames per second, and the compression format is MJPG. The installation height of the camera is 205cm, based on the nearest corner of the long jump test frame, the long jump direction on the horizontal plane is the positive x direction, and the direction perpendicular to x is the y direction. The horizo...

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Abstract

The invention discloses a video-based standing long jump score measurement technical method and device. According to the method, a video-based standing long jump score measurement algorithm is designed, human body posture information of an athlete in a video is extracted through human body posture detection, and take-off and landing actions of the athlete are judged according to human body posture changes; by optimizing a human body posture tracking mode, the problem of tracking number exchange under a multi-person background is solved; the rear edge of the landing point of the athlete is accurately positioned through combination of various image information such as frame difference, edge and frequency domain; the standing long jump score of the athlete is accurately calculated through inverse perspective transformation in combination with parameters such as the side length of the long jump area. A high-resolution camera is used for shooting the long jump process of athletes with different heights and long jump actions, and the average absolute error of experimental measurement is 0.69 cm. According to the video-based standing long jump score measuring method and device, expensive infrared equipment is not used, and tedious later maintenance is not needed.

Description

technical field [0001] The invention belongs to the technical field of video image processing, and in particular relates to a method and device for measuring standing long jump performance based on video. Background technique [0002] With the development of artificial intelligence and computer vision, artificial intelligence devices based on video images are playing an increasingly important role in people's lives. Some manual measurement links can be measured using visual intelligent equipment, thereby avoiding the consumption of labor costs and saving time costs. [0003] The country attaches more importance to and supports sports, and the standardization of physical examinations has also become a focus. If you can directly determine the physical examination scores of candidates through the physical examination video, you can save manpower and avoid the consumption of redundant equipment. The occurrence of cheating is also convenient to deal with some doubts from candid...

Claims

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Application Information

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IPC IPC(8): A63B71/06A63B5/16
Inventor 李凡牟书辉贺丽君
Owner XI AN JIAOTONG UNIV
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