Lens distortion calibration using homography

X. Q. Xu; J. Y. Xia; Q. Zhang; J. L. Xiong

doi:10.1117/12.949508

2 June 2012 Lens distortion calibration using homography

X. Q. Xu, J. Y. Xia, Q. Zhang, J. L. Xiong

Proceedings Volume 8334, Fourth International Conference on Digital Image Processing (ICDIP 2012); 83341L (2012) https://doi.org/10.1117/12.949508
Event: Fourth International Conference on Digital Image Processing (ICDIP 2012), 2012, Kuala Lumpur, Malaysia

Abstract

Undistortion methods based on perspective invariants play an important role in computer vision. The key of these methods is how to choose an proper measure to describe the perspective invariance of undistorted image features. We propose a new measure based on the homography between the control points in undistorted image and the pattern. The less the distortion is, the less the mapping error is. A new lens distortion calibration method is also put forward which uses this measure to search for accurate distortion parameters by iterative optimization. Comparing with other proposed measures based on perspective invariants, our measure is both concise and comprehensive. Both synthetic and real experiments show that our method performs well in accuracy and runtime.

Citation Download Citation

X. Q. Xu, J. Y. Xia, Q. Zhang, and J. L. Xiong "Lens distortion calibration using homography", Proc. SPIE 8334, Fourth International Conference on Digital Image Processing (ICDIP 2012), 83341L (2 June 2012); https://doi.org/10.1117/12.949508

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