椭圆拟合的圆环模板摄像机标定

doi:10.3969/j.issn.1001-2400.2010.06.030

Abstract

Abstract:

A novel camera calibration method based on the circular pattern and ellipse fitting is proposed, which combines the advantages of camera calibration based on the planar pattern and one dimensional object. The proposed method designs a new circular pattern, which needs three images of the pattern to calibrate the camera. Ellipse fitting is introduced to locate the feature points in the circular pattern precisely and nonlinear optimization is utilized, and thus the calibration precision has been improved significantly. Experimental results for synthetic data show that the proposed strategy is both accurate and robust. Experimental results for real images prove the performance of the proposed algorithm.

Key words: camera calibration, circular pattern, ellipse fitting, nonlinear optimization

CLC Number:

TP391

LI Long;HE Ming-yi;LI Na. Camera calibration based on the circular pattern and ellipse fitting[J].J4, 2010, 37(6): 1148-1154.

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Camera calibration based on the circular pattern and ellipse fitting

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