Ping pong ball positioning method and system based on mapping analysis

A positioning system and table tennis technology, applied in the field of table tennis positioning method and system based on mapping analysis, can solve the problem that the real-time position of table tennis cannot be calculated simply and effectively, and achieve the effect of reducing complexity

Inactive Publication Date: 2018-04-20
HANGZHOU QIANBO TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is the problem that the table tennis sports system based on the Internet of Things cannot simply and effectively calculate the real-time position of the table tennis in motion, and proposes a table tennis positioning method and system based on mapping analysis

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  • Ping pong ball positioning method and system based on mapping analysis
  • Ping pong ball positioning method and system based on mapping analysis
  • Ping pong ball positioning method and system based on mapping analysis

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Embodiment Construction

[0030] The preferred embodiments of the present invention will be described in detail below.

[0031] Mapping analysis positioning refers to using a grayscale camera to take pictures with a solid-color curtain as the background to obtain an image of an object on the curtain, determine the mapping position of the object on the curtain, and realize object positioning according to the positions of multiple sets of cameras and their corresponding mapping positions. The present invention is based on mapping analysis positioning technology, such as figure 1 As shown, the grayscale cameras deployed on the top and side of the table tennis table acquire the mapped images of the table tennis ball on different mapping planes, and then send the image data to the server, which stores the data and calculates the real-time position of the table tennis ball.

[0032] The pre-foundation of the present invention is that a three-dimensional space coordinate system has been established. The origi...

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Abstract

The invention discloses a ping pong ball positioning method and system based on mapping analysis. The system comprises a module for acquiring mapping image data and judging whether a ping pong ball isin a mapping area module or not, a module for calculating the position of the ping pong ball in each mapping image and converting coordinate systems, and a module for calculating the spatial positionof the ping pong ball. Photographing is conducted with a pure-color curtain as a background through gray-scale cameras to obtain an image of a certain object on the curtain, mapping positions of theobject on the curtain are determined, the object is positioned according to the positions of multiple groups of cameras and the corresponding mapping positions, the gray-scale cameras arranged above and beside a table tennis table acquire mapping images of the ping pong ball in different mapping planes, then the image data is sent to a server, the server stores the data, and the real-time positionof the ping pong ball is calculated. The system solves the problem that a ping pong ball moving system based on the internet of things cannot easily and effectively calculate the real-time position of the ping pong ball in the moving state.

Description

technical field [0001] The invention belongs to the technical field of intelligent table tennis, in particular to a table tennis positioning method and system based on mapping analysis. Background technique [0002] At present, there are mainly two types of schemes for table tennis motion positioning, one is a computer vision analysis method, and the other is a signal trigger judgment method. [0003] The computer vision analysis method mainly collects the video of table tennis in real time through multiple high-speed high-definition cameras, performs target recognition and spatial positioning on each image in the video to form data, and then calculates the position of the table tennis through filtering and tracking. The disadvantage is the high computational complexity. [0004] The signal trigger judgment method is to obtain the vibration signal caused by the impact of the table tennis ball through the piezoelectric sensor installed on the table tennis table and the ball ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A63B71/06A63B67/04A47B25/00
CPCA63B67/04A47B25/003A63B71/0605A63B2102/16A63B2220/806A63B2220/833
Inventor 严军荣卢玉龙陈彦琦
Owner HANGZHOU QIANBO TECH CO LTD
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