Nonlocally centralized simultaneous sparse coding |
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| Authors: | Yang Lei Zhanjie Song |
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| Institution: | 1.School of Electronic Information Engineering,Tianjin University,Tianjin,China;2.School of Sciences,Tianjin University,Tianjin,China |
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| Abstract: | The concept of structured sparse coding noise is introduced to exploit the spatial correlations and nonlocal constraint of the local structure. Then the model of nonlocally centralized simultaneous sparse coding(NC-SSC) is proposed for reconstructing the original image, and an algorithm is proposed to transform the simultaneous sparse coding into reweighted low-rank approximation. Experimental results on image denoisng, deblurring and super-resolution demonstrate the advantage of the proposed NC-SSC method over the state-of-the-art image restoration methods. |
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