Optoelectronics Letters, Volume. 13, Issue 6, 439(2017)

Application of regularization technique in image super-resolution algorithm via sparse representation

De-tian HUANG1...2,3,*, Wei-qin HUANG1, Hui HUANG2, and Li-xin ZHENG13 |Show fewer author(s)
Author Affiliations
  • 1College of Engineering, Huaqiao University, Quanzhou 362021, China
  • 2College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, China
  • 3University Engineering Research Center of Fujian Province Industrial Intelligent Technology and Systems, Huaqiao 362021, China
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    To make use of the prior knowledge of the image more effectively and restore more details of the edges and structures, a novel sparse coding objective function is proposed by applying the principle of the non-local similarity and manifold learning on the basis of super-resolution algorithm via sparse representation. Firstly, the non-local similarity regularization term is constructed by using the similar image patches to preserve the edge information. Then, the manifold learning regularization term is constructed by utilizing the locally linear embedding approach to enhance the structural information. The experimental results validate that the proposed algorithm has a significant improvement compared with several super-resolution algorithms in terms of the subjective visual effect and objective evaluation indices.

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    HUANG De-tian, HUANG Wei-qin, HUANG Hui, ZHENG Li-xin. Application of regularization technique in image super-resolution algorithm via sparse representation[J]. Optoelectronics Letters, 2017, 13(6): 439

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    Paper Information

    Received: Jun. 27, 2017

    Accepted: Aug. 17, 2017

    Published Online: Sep. 13, 2018

    The Author Email: De-tian HUANG (huangdetian@hqu.edu.cn)

    DOI:10.1007/s11801-017-7143-1

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