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High-precision three-dimensional motion track acquisition positioning and motion process reproduction method based on binocular video sensor

A technology of binocular video and positioning method, applied in instruments, image data processing, computing, etc., can solve problems such as inability to apply high-precision positioning to equipment, insufficient accuracy of PTZ servo angle output, and inability to use high-precision tracking algorithms, etc. Achieve good control effect and capture the effect of precise target position

Pending Publication Date: 2020-09-01
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

However, due to the limitations of early computer computing power and other reasons, real-time high-precision tracking algorithms cannot be used, and the output accuracy of the pan / tilt servo angle used in the security field is not enough.
Therefore, it is impossible to apply this type of equipment to the high-precision positioning business

Method used

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  • High-precision three-dimensional motion track acquisition positioning and motion process reproduction method based on binocular video sensor
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  • High-precision three-dimensional motion track acquisition positioning and motion process reproduction method based on binocular video sensor

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that the described examples are only intended to facilitate the understanding of the present invention, and do not have any limiting effect on it.

[0019] The overall hardware design structural block diagram of this invention is as figure 1 As shown, the system consists of three high-precision servo turntables, two high-frame-rate industrial cameras, a laser, a motion controller, a target tracker, and a PC host computer. The target tracker is responsible for monitoring The pictures transmitted by the camera are used for tracking processing and calculation, while the host computer is only responsible for displaying video and sending instructions to the controller. The overall process is as follows. The camera mounted on the pan / tilt synchronously transmits image data to the target tracker. The tracker performs target t...

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Abstract

The invention discloses a high-precision three-dimensional motion track acquisition and motion process reproduction method based on a binocular video sensor. The method is mainly applied to athlete movement condition data acquisition and comprehensive analysis of racing events such as athletes' athletic tracks, swimming and ice competitions, helps athlete coaches to effectively analyze movement characteristics, improves movement strategies and improves movement performance. The method mainly comprises the following two aspects: firstly, a high-precision video target tracking technology and a servo control tracking system are adopted to determine the angle and orientation of a target; secondly, the tracked pixel coordinate data and turntable corner data are converted into three-dimensionalspace coordinates through a camera calibration and binocular stereoscopic vision technology, and then the motion trail of the moving target in the three-dimensional space is obtained; and then opticalprojection can be carried out on a certain space plane such as a sports field plane through a high-precision servo control system, so that the motion process of an original target is reproduced, andthe projection position, speed, acceleration and the like at each moment are consistent with the previously acquired motion process of the target.

Description

technical field [0001] The invention belongs to the field of computer vision and computer control, specifically relates to the technical fields of machine vision tracking technology, binocular vision positioning technology, high-precision servo control, etc., and is a high-precision positioning method based on binocular video sensors. Background technique [0002] In recent years, with the improvement of computer hardware level, computer vision technology has developed rapidly. Among them, the target tracking technology in computer vision also benefits. But it is a pity that the combination of the existing target tracking technology and the PTZ tracking system is mostly used in the field of security monitoring and few others. In recent years, with the upcoming Winter Olympics, the development of sports has gradually been paid attention to. Traditional ice athletes and skiers generally analyze the sliding quality by recording the entire sliding time, sliding distance and pl...

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Application Information

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IPC IPC(8): G06T7/292
CPCG06T2207/10016G06T7/292
Inventor 刘明刘宗达董立泉赵跃进杨婉钰严密孔令琴
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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