.Color correction and geometric calibration for multi-view images with feature correspondence[J].Optoelectronics Letters,2009,5(3):232-235
Color correction and geometric calibration for multi-view images with feature correspondence
邵枫  蒋刚毅  郁梅
SHAO Feng(Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China)
;JIANG Gang-yi,YU Mei(Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China;the State Key Lab. of New Software Technology, Nanfing University, Nanjing 210093, China)
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Abstract:
      Color and geometry inconsistency between different views is an urgent problem in multi-view imaging applications. In this paper, we present a color correction and geometric calibration method for multi-view images on the basis of feature corre-spondences between views. First, keypoints in views are detected by using scale invariant feature transform, and accurately matched by bi-directional feature matching between difference views. Then multiplicative and additive errors between matching keypoints are calculated to achieve color correction. In addition, an affine transformation between minimum cost matching keypoints is established to achieve geometric calibration. The experimental results verify the effectiveness of the proposed method in color correction and geometric calibration, and a higher coding efficiency is obtained.
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