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Algorithm for automatically recognizing shooting and scoring of basketball match based on panoramic video

A panoramic video, automatic recognition technology, applied in the field of basketball game video recognition, can solve problems such as failure, ghost and afterimage, automatic shooting and goal judgment difficulties.

Inactive Publication Date: 2017-07-28
上海慧体网络科技有限公司
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Problems solved by technology

For unsupervised recording of football games with ordinary cameras, there are no close-up shots in the video, so the above methods often fail
In addition, in the panorama mode, because the basket frame is related to the camera field of view, the area of ​​the basketball is small during the shooting process, and the basketball moves too fast when shooting, often causing motion blur, ghosting and afterimages , which makes the automatic shooting and goal judgment more difficult

Method used

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  • Algorithm for automatically recognizing shooting and scoring of basketball match based on panoramic video

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The algorithm for automatically identifying basketball game shots and goals based on panoramic video provided by the present invention, the specific scheme includes:

[0027] 1. Generate the annotation information of the scene.

[0028] Use manual annotation or algorithm automatic learning method to obtain some prior information of the scene (such as extracting the basket and backboard from the video, and marking the height of the ordinary player on the ground corresponding to the position of the rebound).

[0029] According to the size and position of the backboard, and the height of the average player on the ground corresponding to the backboard position, the shooting area of ​​interest of all parties in the game is generated (the y direction can be taken from the top of the backboard position to the top of the backboard, and the x direction ca...

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Abstract

The invention discloses an algorithm for automatically recognizing shooting and scoring of a basketball match based on a panoramic video. The method comprises five steps, namely generating mark information of a scene, selecting a candidate basketball, generating a basketball track, automatically determining shooting, and automatically determining scoring. The algorithm for automatically recognizing shooting and scoring of the basketball match based on the panoramic video realizes automatic recognition and accurate determining for shooting and scoring in the match. The algorithm overcomes a problem of high difficulty in determining shooting and scoring caused by reasons such as overhigh basketball motion speed, fuzzy movement, virtual image and ghost in prior art.

Description

technical field [0001] The invention relates to a basketball game video recognition algorithm, in particular to an algorithm for automatically recognizing basketball game shots and goals based on panoramic video. Background technique [0002] At present, it is common to analyze the video of a large-scale basketball game, and use the method of detecting the close-up shot of the pitch in the video of the game to judge the shooting and scoring. However, when using an ordinary camera for unsupervised recording of a ball game, there are no close-up shots in the video, so the above methods often fail. In addition, in the panorama mode, because the basket frame is related to the camera field of view, the area of ​​the basketball is small during the shooting process, and the basketball moves too fast when shooting, often causing motion blur, ghosting and afterimages , which makes the automatic shooting and goal judgment more difficult. Aiming at these deficiencies in the prior art...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V20/42G06V20/46
Inventor 刘剡贺岳平朱明亮
Owner 上海慧体网络科技有限公司
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