Research on projective distortion self-corrected photogrammetry

Zemin Wang; Zhiyong Lei; Xiaona Ding; Junchai Gao; Hanshan Li

doi:10.1117/12.920205

11 January 2012 Research on projective distortion self-corrected photogrammetry

Zemin Wang, Zhiyong Lei, Xiaona Ding, Junchai Gao, Hanshan Li

Proceedings Volume 8349, Fourth International Conference on Machine Vision (ICMV 2011): Machine Vision, Image Processing, and Pattern Analysis; 83490C (2012) https://doi.org/10.1117/12.920205
Event: Fourth International Conference on Machine Vision (ICMV 11), 2011, Singapore, Singapore

Abstract

Aimed projective distortion caused by tilted camera in traditional photogrammetry, a projective distortion self-corrected photogrammetry is proposed used to measure the projectile coordinates. The causes of projective distortion and the impact on the measurement accuracy are analyzed. Through the analysis of the imaging model of random points on the target, The formula to solve the object distance is deduced. The correspondence between the coordinates on the image and the coordinate on the target of the projectiles is established. According to Extraction and calculation of 4 markers sited on the target, the constant in the correspondence is solved. The measurement error caused by projective distortion is overcome. The absolute measurement of projectile coordinate on the target is realized. The test result shows that the projectile coordinate on the target can be accurately measured using the method designed in this paper. The accuracy and consistency of fire intensity measuring is increased. It also can be used to check the other related automatic measuring equipments.

Citation Download Citation

Zemin Wang, Zhiyong Lei, Xiaona Ding, Junchai Gao, and Hanshan Li "Research on projective distortion self-corrected photogrammetry", Proc. SPIE 8349, Fourth International Conference on Machine Vision (ICMV 2011): Machine Vision, Image Processing, and Pattern Analysis, 83490C (11 January 2012); https://doi.org/10.1117/12.920205

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