Ping-pong ball track capture analysis method and system
An analysis method, table tennis technology, applied in image analysis, image data processing, instruments, etc., can solve the problems of statistical analysis of multiple groups of table tennis trajectories, technical and tactical information analysis, and the inability to meet the analysis needs of high-level athletes in competitive sparring
Pending Publication Date: 2020-12-15
上海创屹科技有限公司
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Problems solved by technology
The existing capture system for table tennis trajectories neither fully analyzes the technical and tactical information contained in the table tennis trajectories, nor performs statistical analysis on multiple groups of table tennis trajectories, and generally cannot accurately and effectively respond to high-speed, high-spin Disadvantages of ping pong trajectory
In addition, the existing systems and methods for capturing the trajectory of table tennis balls can only be applied to the environment where there is only a single table tennis ball in the field of vision, and cannot be applied to the training scene of multiple table tennis balls.
[0003] The existing technology can neither meet the analysis requirements for high-level athletes' sparring, nor can it meet the analysis and evaluation requirements for training effects in the table tennis training process
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[0075] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly illustrate the spirit of the content disclosed in the application with the accompanying drawings and detailed descriptions. After any person skilled in the art understands the embodiments of the content of the application , when it can be changed and modified by the technology taught in the content of the application, it does not depart from the spirit and scope of the content of the application.
[0076] The exemplary embodiments and descriptions of the present application are used to explain the present application, but not to limit the present application. In addition, elements / members with the same or similar numbers used in the drawings and embodiments are used to represent the same or similar parts.
[0077] The terms "first", "second", ... etc. used herein do not specifically refer to a sequence or order, nor are they...
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The invention provides a ping-pong ball track capture analysis method and system, and the analysis method comprises the steps of detecting a ping-pong ball in a collected image based on a sparse convolutional neural network, and obtaining a ping-pong ball detection result; matching, reconstructing and screening a plurality of ping-pong balls in the binocular image to obtain space coordinate pointsof an effective moving target ping-pong ball; obtaining an effective ping-pong ball track by utilizing the space coordinate points of the effective moving target ping-pong ball; and analyzing the ping-pong ball training effect and competitive combat skills according to the effective table tennis track. The high-speed and high-rotation ping-pong ball flight path can be captured in real time in a complex environment with multiple balls, the technical and tactical characteristics contained in the ping-pong ball path are intelligently analyzed, statistical information of the multiple groups of ping-pong ball paths is stored and analyzed, the requirement for analyzing competitive batting of high-level athletes can be met, and the requirements for analyzing and evaluating the training effect inthe ping-pong ball training process can also be met.
Description
technical field [0001] The application belongs to the technical field of machine vision and data analysis, and in particular relates to a table tennis trajectory capture analysis method and analysis system. Background technique [0002] Table tennis has many technical and tactical changes, such as landing point, ball speed and rotation. Flying table tennis has the characteristics of high speed and high rotation. The table tennis training process often appears in the form of multi-ball training. At this stage, the capture system for table tennis trajectory at home and abroad is mainly used in table tennis robots. Its purpose is to capture a section of table tennis flight trajectory, predict the subsequent flight trajectory of table tennis ball, and use it for the robot to calculate the return strategy. The existing capture system for table tennis trajectories neither fully analyzes the technical and tactical information contained in the table tennis trajectories, nor performs...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G06T7/20G06T17/00
CPCG06T7/20G06T17/00G06T2207/20081G06T2207/20084G06T2207/10004
Inventor 贺琪欲张海波杨跞许楠张文
Owner 上海创屹科技有限公司