Spatial position and posture solving method based on integral target optimization

A technology of spatial position and spatial attitude, which is applied in the fields of automobile production, maintenance and service, and can solve problems that affect the accuracy of four-wheel alignment parameters, large deviations in fitting, and unstable results, etc.
CN107576286AActive Publication Date: 2018-01-12安徽省爱夫卡电子科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
安徽省爱夫卡电子科技有限公司
Publication Date
2018-01-12

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Abstract

The invention discloses a spatial position and posture solving method based on integral target optimization, and belongs to the field of production, maintenance and service of vehicles. According to the spatial position and posture solving method based on integral target optimization, imaging of targets in different states can be taken as imaging of a same target on cameras, the cameras in different states can be used for shooting the targets at different spatial positions, known spatial points are projected into the cameras for imaging according to the related principle of three-dimensional reconstruction, constraint is done based on minimum back projection, least square solving is performed to acquire the positions of the cameras, the cameras (corresponding to large target extraction errors caused by factors such as shaking during movement) with large residual errors are eliminated, and accurate postures and positions of the targets are acquired through back calculation.
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Description

technical field

[0001] The invention relates to the fields of production, maintenance and service of automobiles, in particular to a method for solving the spatial position and attitude of the overall optimization of a target. Background technique

[0002] The four-wheel aligner is a precision instrument used to detect the vehicle alignment device. The four-wheel alignment instrument continuously captures the target, and then calculates the spatial position and attitude of the target, and then calculates the angle, etc. Therefore, in the four-wheel aligner, the positioning and posture of the target play a decisive role in the final result. The method for improving the positioning and attitude determination of the target is conducive to further improving the calculation accuracy of the four-wheel alignment.

[0003] However, in the existing technical research and practice process, it is found that in the process of calculating the spatial position and spatial attitude of the...

Claims

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