System and method of recognizing, positioning and tracking ping-pong trajectory

Abstract

The invention relates to the field of image processing and machine vision, and particularly relates to a system and a method of recognizing, positioning and tracking a ping-pong trajectory. The image in the case of movement of a ping-pong ball is acquired in real time through two high-speed high-definition cameras; after target recognition and space positioning are carried out on the acquired image, data are formed, the data are filtered and tracked, and ping-pong trajectory information is obtained; and according to the ping-pong trajectory information obtained through a ping-pong target tracking module and in combination of inner and outer parameters of the cameras, a ping-pong ball three-dimensional trajectory is simulated and reproduced. The problems of interference of complicated background changes and not high tracking real-time performance of a quick moving target can be solved, and the accuracy of tracking and acquiring the image information of the high-speed moving target is enhanced.

Description

[0001] 【Technical field】 [0002] The invention relates to the fields of image processing and machine vision, in particular to a table tennis trajectory identification, positioning and tracking system and method. [0003] 【Background technique】 [0004] The traditional Mean-Shift object tracking algorithm uses color information or edge information as features to describe, lacks spatial information and necessary template update. The traditional color feature is a color histogram. This method needs to calculate the number of pixels in each color area. Even the fastest detection algorithm must have an underlying operation that uses point-by-point scanning of the image lattice data. The algorithm is computationally less efficient. In addition, when the fast-moving target is identified and tracked, deformation or target tracking loss will occur. And in table tennis, table tennis has the characteristics of small size, smooth surface and easy reflection, which increases the difficul...

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned problems existing in the prior art, the object of the present invention is to provide a kind of table tennis trajectory identification positioning and tracking system and method, aiming at solving the situation that the prior art cannot accurately detect the table tennis ball under the complex background and the fast moving situation of the target. The problem of performing accurate real-time tracking, not only improves the accuracy of image acquisition, but also improves the accuracy of real-time tracking

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