Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Billiard ball hitting key information detection method and system

A technology of key information and detection methods, applied in the field of sports science and technology, can solve problems such as inability to move billiards and reasonable judgment of collision situations, and achieve the effects of avoiding trajectory judgment errors, improving detection accuracy, and reducing the amount of calculation.

Active Publication Date: 2014-06-18
BEIJING RIGOUR TECH LTD
View PDF5 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is that the billiard ball scoring system in the prior art can only judge according to the situation of the billiard ball entering the pocket, and cannot give a reasonable judgment based on the movement and collision of the billiard ball. Billiard ball hitting information detection method and system for judging whether the hitting is successful

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Billiard ball hitting key information detection method and system
  • Billiard ball hitting key information detection method and system
  • Billiard ball hitting key information detection method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In this embodiment, a method for detecting key information of billiard hitting is provided, and the flow chart is as follows figure 1 shown, including the following steps:

[0040] (1) When there is no billiard ball, extract the characteristic parameter information of the billiard table, including extracting the coordinate information of the table, the edge of the table, and the pocket. Based on the above information, an encoding model of the pool table is established.

[0041] (2) According to the video image before hitting the ball, obtain the characteristic parameter information of the ball on the billiard table at the front of the ball, including the position and color of the billiard ball on the table. According to the coding model of the billiard table, use the perspective transformation matrix from the video data Get the position coordinates of the billiard ball on the table.

[0042] (3) According to the video image of hitting the ball, process and analyze the...

Embodiment 2

[0051] In this embodiment, a method for detecting key information of billiard hitting is provided. The equipment used includes a video acquisition camera (more than 30 frames per second), a computer and an image output device. The method can be mainly divided into the following two parts:

[0052] 1. Calibrate the system before the system runs.

[0053] The calibration steps are:

[0054] (1) Manually measure the actual physical coordinates of the pocket mouth, use the physical coordinates to establish the image coordinates, and determine the corresponding relationship between the physical coordinates and the image coordinates.

[0055] (2) Using the corresponding relationship between physical coordinates and image coordinates, through computer automatic learning, a perspective transformation matrix is ​​formed, which is used for image deformation correction during the detection process.

[0056] (3) Collect the image of the empty ball table, and conduct statistical analysis ...

Embodiment 3

[0071] In this embodiment, on the basis of the above-mentioned embodiments 1 and 2, after the billiard ball is detected and the color is recognized in the transformation area, an error recovery process is also included, which is used to judge whether the billiard ball is detected and the color is recognized in the previous step. An error occurs, and if an error occurs, recovery is performed, and it is restored to before the error occurred, and if no error occurs, subsequent motion trajectory generation is performed. By means of error recovery, it not only avoids detection errors leading to follow-up trajectory judgment errors, and the accuracy of recognition, but also restores to the previous correct state by means of recovery, without re-processing the previous data, which improves the processing efficiency.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a billiard ball hitting key information detection method and a billiard ball hitting key information detection system. The method comprises the steps of firstly establishing a model according to parametric characteristics of a billiard table, then determining position coordinates of the billiard table according to an image before ball hitting, processing and analyzing the change of the position coordinates of each ball according to a video image of ball hitting to obtain moving trajectories of moving balls, and finally obtaining key information of ball hitting according to the moving trajectories of the moving balls. According to the ball hitting key information obtained by adopting the method, the moving situation and the collision situation of the balls can be comprehensively reflected, and the problem that mistake judgments are easy to make due to reasons that the ball which enters a pool is judged only and other situations are not considered in the prior art is avoided. The billiard ball hitting key information detection method and the billiard ball hitting key information detection system provided by the invention have the advantage that the movement of billiard balls can be comprehensively reflected.

Description

technical field [0001] The invention relates to the field of sports science and technology, in particular to a method and system for detecting key information of billiard hitting. Background technique [0002] At present, the billiards training in various countries in the world is based on the experience of the coaches to guide and train the students. It is impossible to know the trajectory of the cue ball, the area where the cue ball stops, and the position of the cue ball. Perform quantitative testing. During the billiard ball hitting process, due to the fast movement of the balls, when multiple balls collide, it is difficult for human eyes to distinguish, and misjudgment may occur in some cases. [0003] In order to solve the above problems, a method for automatic scoring of billiards and a device using this automatic scoring method are disclosed in Chinese patent document CN1430172A to realize automatic scoring of billiard events. The automatic scoring method is to use ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T7/20
Inventor 刘铮邢忠贤
Owner BEIJING RIGOUR TECH LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com