• Laser & Optoelectronics Progress
  • Vol. 60, Issue 14, 1428007 (2023)
Zeqing Liu*, Yong Xu, Bojun Du, and Yalin Wang
Author Affiliations
  • 63861 Unit of the PLA, Baicheng 137000, Jilin, China
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    DOI: 10.3788/LOP221773 Cite this Article Set citation alerts
    Zeqing Liu, Yong Xu, Bojun Du, Yalin Wang. High-Speed Camera Calibration Method Based on Airborne Identification Target[J]. Laser & Optoelectronics Progress, 2023, 60(14): 1428007 Copy Citation Text show less

    Abstract

    To address the issue of high-speed camera calibration in shooting range for field-wide field measurement, a calibration technique based on airborne identification targets is proposed. To obtain the known point set, an airborne precise positioning identification target is used, and a method based on simulated annealing sparrow search is used to solve the internal and external parameters of high-speed cameras. The airborne identification target is intended to be easily identified from a long distance. The dynamic difference after the event is used for precise positioning, and the precise measurement of the spatial position of the identification target is obtained through position correction. Based on the simulated annealing sparrow search calibration method, the internal and external parameters of the high-speed camera are calculated and calibrated. In the verification experiment created, the reprojection error of the proposed method for addressing the internal and external parameters of the high-speed camera is 0.43 pixel, and the average intersection error is 2.5 cm. The calibration effect and intersection accuracy are superior to Tsai's two-step calibration method, which improves the high-speed camera's remote calibration accuracy and intersection measurement accuracy while also resolving the calibration problem during aerial measurement.
    Zeqing Liu, Yong Xu, Bojun Du, Yalin Wang. High-Speed Camera Calibration Method Based on Airborne Identification Target[J]. Laser & Optoelectronics Progress, 2023, 60(14): 1428007
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