System for realtime and accurate observation and analysis of table tennis rotating and system operating method

Abstract

The invention discloses a visual system for realtime and accurate observation and analysis of table tennis rotating and a system operating method, wherein the system is composed of the following modules: an image acquisition and table tennis target identification and location module, a table tennis space motion KALMAN filter module, a pan-tilt motion plan and control module, a table tennis mark recognition and three-dimensional reconstruction module, a table tennis rotating motion particle filter module and a three-dimensional virtual scene reproduction module. The biggest characteristic of the system for the realtime and accurate observation and analysis of the table tennis rotating disclosed by the invention is that the system can observe and analyze the rotating information of the table tennis in real time, to obtain a rotating state of the table tennis on the basis of the space motion of the table tennis, so that abundant and complete table tennis track information is obtained; and the system is still quite high in realtime performance, to provide abundant and accurate information for athlete training and teaching, game realtime judgment and live broadcast, and timely response of an online decision-making automatic system. By introduction of observation and analysis on internal motion of the target, the accuracy of the target motion state estimation and predication is improved, so that the system can be popularized in other operation projects, civil, military and other similar scenes in a relatively scientific manner.

Description

technical field [0001] The invention relates to an observation and analysis system for table tennis rotation, which is used for real-time detection and analysis of the flight state of table tennis, mainly its rotation, in table tennis competitions and training, so that more complete information can be obtained. Table tennis flight trajectory information lays a better foundation for analyzing the player's playing style and the flexible playing of the servo table tennis robot. [0002] Background technique [0003] In recent years, visual aid systems have been used more and more in sports events, such as the "Eagle Eye" system in tennis broadcasts. In table tennis, the 200910095291.6 patent application discloses a system and system operation method for accurately measuring and predicting table tennis trajectories, a real-time processing system that can accurately measure, predict, and three-dimensionally reproduce high-speed flying table tennis trajectories; on this basis, 20...

AI Technical Summary

Problems solved by technology

Under the constraints of limited camera resolution, only one vision system cannot meet its needs. It is necessary to combine the dual data of global observation and local observation to restore the true and complete information of object motion.

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