Effectiveness evaluation of camera calibration for portable consumer UAV

doi:10.13474/j.cnki.11-2246.2021.0124

Abstract

Abstract: This paper has carried out a study on the effectiveness of camera calibration for portable consumer-grade drones that have been widely used in various industries in recent years. The camera is calibrated and self-calibrated through indoor calibration fields and post-processing software. After camera calibration, post-flight camera calibration, and self-calibration iterative correction methods, the effectiveness of different camera calibration schemes is evaluated. The results show that the overall accuracy of the various schemes is not much different. The accuracy of the pre-flight and post-flight camera calibration is equivalent to that of no camera calibration. The accuracy of the self-calibration iterative correction is slightly higher than other schemes. It can be seen that the iterative correction method of self-calibration parameters of aerial photos is more suitable for the calibration of portable consumer-grade UAV cameras with low flight control accuracy and imaging system stability.

Key words: UAV, camera calibration, lens distortion, mapping accuracy, effectiveness

CLC Number:

P231

LI Ji, XIONG Jing, XIONG Baosong, WU Xingyu, ZHANG Chaoyang, LI Xue. Effectiveness evaluation of camera calibration for portable consumer UAV[J]. Bulletin of Surveying and Mapping, 2021, 0(4): 131-135.

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