Mono-camera based calibration method for two-axes LRF measurement system

Langming Zhou; Lihua Xiao; Jiedong Wang; Yu Han

doi:10.1117/12.2540194

14 August 2019 Mono-camera based calibration method for two-axes LRF measurement system

Langming Zhou, Lihua Xiao, Jiedong Wang, Yu Han

Proceedings Volume 11179, Eleventh International Conference on Digital Image Processing (ICDIP 2019); 1117948 (2019) https://doi.org/10.1117/12.2540194
Event: Eleventh International Conference on Digital Image Processing (ICDIP 2019), 2019, Guangzhou, China

Abstract

A mono-camera based calibration method for laser ranger finder (LRF) combined with a two-axes turntable measurement system is proposed in this paper. The LRF rotates around the two axes and two parallel calibration planes are used to intercept a laser beam in order to calculate the manually-set output point of the LRF. The space coordinate of the two laser beam spots is computed using monocular vision method. Then the manually-set output point of LRF is calculated based on the principle of light propagating linearly. At last multiple manually-set output points are collected to fit the axis parameters. The space coordinates of targets can be calculated by LRF measurement system through accurately calibrating the two-axes of the turntable. A quantitative experiments show that the measuring precision of the system is within 0.5mm. Our calibration method is simple, effective can be extended in other measuring system with a single, two and more axes turntable.

Citation Download Citation

Langming Zhou, Lihua Xiao, Jiedong Wang, and Yu Han "Mono-camera based calibration method for two-axes LRF measurement system", Proc. SPIE 11179, Eleventh International Conference on Digital Image Processing (ICDIP 2019), 1117948 (14 August 2019); https://doi.org/10.1117/12.2540194

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