3D automobile wheel positioner multi-camera calibration system and method

Abstract

The invention provides a 3D automobile wheel positioner multi-camera calibration system and method. The 3D automobile wheel positioner multi-camera calibration system and method are mainly used for conducting production and maintenance field calibration on the 3D automobile wheel positioner multi-camera system. The information of the relative positions of two target boards is obtained through a calibration camera, two measurement cameras each obtain the position information of one target board, and finally the relative position relation of the second measurement camera relative to the first measurement camera is calculated. An extra target board is not needed in the calibration system, a calibration rod does not need to be used for rigid connection of the two target boards, calibration results are high in accuracy, the size and the weight of the calibration system are greatly reduced, maintainers can conveniently carry the system, the calibration steps are simple, operation is convenient, and relevant cost is reduced.

Description

[0001] technical field [0002] The invention relates to the technical field of automobile maintenance and detection, in particular to a multi-camera calibration system and a multi-camera calibration method for a 3D automobile wheel locator. Background technique [0003] Automobile 3D wheel aligner is a kind of equipment that uses multiple cameras to take pictures of the target plate placed on the wheel, processes and calculates the acquired images, and finally obtains the rotation axis of the automobile wheel, and realizes the measurement and adjustment of wheel alignment parameters. At present, the usual camera calibration method is to use a very long rigid calibration rod, and the two ends of the calibration rod are respectively installed with the target board, so as to be able to straddle the left and right sides of the device, so as to realize the calibration and calibration of multiple cameras. There are many calibration steps, and the operation Complexity, the stabili...

AI Technical Summary

Problems solved by technology

At present, the usual camera calibration method is to use a very long rigid calibration rod, and the two ends of the calibration rod are respectively installed with the target board, so as to be able to straddle the left and right sides of the device, so as to realize the calibration and calibration of multiple cameras. There are many calibration steps, and the operation Complex, the stability of the calibration rod has a great influence on the accuracy of the calibration results, and the calibration device is bulky and inconvenient to carry, which brings a lot of inconvenience to the transportation and calibration process

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