In this paper, we propose a laser far-field dynamic indication accuracy measurement method without reference distance using dual-perspective correction. First, we simplify the image registration process of the dual-imaging system and improve the image registration accuracy of the dual-camera imaging system for the registration standard deviation of 0.08 pixel. The actual registration standard deviation for a corresponding imaging distance at 1 km is 0.94 mm. Furthermore, we calibrate the dynamic measurement accuracy of the measurement system using a cooperative self-test lamp on the target plate by dual-perspective correction theoretical model without reference distance. The average measurement error of the measurement system is 2.45 mm with a dynamic measurement standard deviation of 9.90 mm. Finally, we perform practical dynamic indication accuracy tests of laser irradiation systems, to further verify the effectiveness of the proposed measurement method.
Wenbo Jing, Bingkun Huang, Genming Cao. Measuring Method for Long-Distance Dynamic Indication Accuracy of Laser Irradiation System[J]. Chinese Journal of Lasers, 2022, 49(7): 0704003