Calibration method of relative pose between monopulse rangefinder and visible light array camera

Yuchi Pu; Chaofeng Ren; Yuhang Jiao; Fuqiang Zhang

doi:10.1117/12.2654717

15 December 2022 Calibration method of relative pose between monopulse rangefinder and visible light array camera

Yuchi Pu, Chaofeng Ren, Yuhang Jiao, Fuqiang Zhang

Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 1247827 (2022) https://doi.org/10.1117/12.2654717
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China

Abstract

The fusion of monopulse laser rangefinder and optical camera information requires the acquisition of their relative pose and attitude parameters. This paper focuses on the relative pose calibration of monopulse laser rangefinder (MLRF) and visible light array camera. Two calibration methods are proposed. The image plane of the infrared camera and the physical plane whose pose of the visible array camera is known are locally registered to solve the difficulty of the calibration of the laser spot relative to the invisible of the visible array camera. Then evaluate the stability of the pose solution of exceed the calibration distance. The experimental results show that the reprojection error of the relative pose solution obtained by finite number of measurements is less than 1 pixel. The position error within the calibration distance is less than 4 mm; Beyond the calibration distance, the position error increases by less than 3 mm for per 10 m.

Citation Download Citation

Yuchi Pu, Chaofeng Ren, Yuhang Jiao, and Fuqiang Zhang "Calibration method of relative pose between monopulse rangefinder and visible light array camera", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 1247827 (15 December 2022); https://doi.org/10.1117/12.2654717

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