An algorithm of minimizing local region energy is proposed based on pairwise Markov random fields(MRF)model to solve the problem that the pairwise interactions fails to capture the rich statistical features of images. The proposed algorithm utilizes local region information to construct a local region energy model and a local interaction region MRF model for image segmentation. The loopy belief propagation(LBP)algorithm is applied to minimize the MRF global energy. The optimization makes local region energy converge
and the label is estimated based on MAP criterion. Then the local region information is transferred to adjacent region through LBP algorithm. Experimental results show that the proposed algorithm generates more accurate segmentation results than the standard LBP algorithm does on both synthetic and natural images
and also can efficiently restrain effect of image noise and texture for segmentation.
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references
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