Wheel pose measurement based on cross structure light

Qiancheng Zhao; Xun Ding; Xian Wang; Yafeng Zhao

doi:10.1117/12.2217705

26 January 2016 Wheel pose measurement based on cross structure light

Qiancheng Zhao, Xun Ding, Xian Wang, Yafeng Zhao

Proceedings Volume 9903, Seventh International Symposium on Precision Mechanical Measurements; 99032P (2016) https://doi.org/10.1117/12.2217705
Event: Seventh International Symposium on Precision Mechanical Measurements, 2015, Xia'men, China

Abstract

It's necessary for automobile to detect and adjust four-wheel alignment parameters regularly, due to the significant effect on improving stability, enhancing security and reducing tire wear of automobiles. In order to measure the parameters that determined by relative position and posture of four wheels to the automobile cab, this paper proposes a method which applies monocular vision of linear structure light to wheel pose measurement. Firstly, space coordinates of feature point cloud are calculated out from the principle of structured light. Then, an algorithm is designed to determine the normal vector of wheel tangent plane and measure the wheel pose. Finally, actual experiments that by evaluation of adjusted wheel angle measurement are carried out to verify the system accuracy. The corresponding studies can be applied in designing and developing 3D four-wheel alignment system that based on structured light.

Citation Download Citation

Qiancheng Zhao, Xun Ding, Xian Wang, and Yafeng Zhao "Wheel pose measurement based on cross structure light", Proc. SPIE 9903, Seventh International Symposium on Precision Mechanical Measurements, 99032P (26 January 2016); https://doi.org/10.1117/12.2217705

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KEYWORDS

Cameras

Imaging systems

Structured light

Optical testing

3D image processing

Calibration

3D metrology

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