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

A technology of a calibration system and a calibration method is applied in the multi-camera calibration system and multi-camera calibration field of a 3D automobile wheel aligner, which can solve the problems that the accuracy of the calibration rod is greatly affected, the transportation and calibration process are inconvenient, and the calibration device is bulky. Easy to carry, easy to calibrate, simple calibration steps

Active Publication Date: 2015-01-28
烟台开发区海德科技有限公司 +1
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  • Abstract
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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

Method used

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

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0031] Such as figure 1 , The embodiment of the calibration system of the present invention includes a computer 6 of the 3D wheel aligner, a left camera 4 of the 3D wheel aligner and a right camera 5 of the 3D wheel aligner. The left camera 4 and the right camera 5 are respectively connected with the computer 6 through data lines. Also includes a calibration camera 1, the calibration camera 1 is connected to the computer 6 of the 3D wheel aligner through a USB connection line 3. The calibration camera 1 is placed on one side of the locator through a bracket 2 .

[0032] The embodiment of the calibration system of the present invention also includes a front wheel target plate 7 and a rear wheel target plate 8 for the locator measurement. The front wheel target plate 7 is located in the field of view of the left camera 4, the rear wheel target plate ...

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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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/013G01B11/00
Inventor 毕远伟胡潇琨刘兆伟郑小鹏张念坤魏炯丛大永李新宁
Owner 烟台开发区海德科技有限公司
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