An image restoration method based on sparse constraint

Zhenping Qiang; Hui Liu; Xu Chen; Zhenhong Shang; Lingjun Zeng

doi:10.1117/12.2030581

19 July 2013 An image restoration method based on sparse constraint

Zhenping Qiang, Hui Liu, Xu Chen, Zhenhong Shang, Lingjun Zeng

Proceedings Volume 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013); 887806 (2013) https://doi.org/10.1117/12.2030581
Event: Fifth International Conference on Digital Image Processing, 2013, Beijing, China

Abstract

In this paper, proposed an image restoration method which base on the sparse constraint. Based on the principle of Compressed Sensing, the observed image is transformed into the wavelet domain, and then converted the image restoration problem to a convex set unrestricted optimization problem by limiting the number of non-zero elements of the wavelet domain, using the gradient projection method for solving the optimization problem to achieve the restoration of the input image. Experiments show that the method presented has the fast convergence and good robustness compared to the traditional total variation regularization restoration method.

Citation Download Citation

Zhenping Qiang, Hui Liu, Xu Chen, Zhenhong Shang, and Lingjun Zeng "An image restoration method based on sparse constraint", Proc. SPIE 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013), 887806 (19 July 2013); https://doi.org/10.1117/12.2030581

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