Coupled Dictionary Training for Image Super-Resolution

  title={Coupled Dictionary Training for Image Super-Resolution},
  author={Jianchao Yang and Zhaowen Wang and Zhe L. Lin and Scott Cohen and Thomas S. Huang},
  journal={IEEE Transactions on Image Processing},
In this paper, we propose a novel coupled dictionary training method for single-image super-resolution (SR) based on patchwise sparse recovery, where the learned couple dictionaries relate the low- and high-resolution (HR) image patch spaces via sparse representation. The learning process enforces that the sparse representation of a low-resolution (LR) image patch in terms of the LR dictionary can well reconstruct its underlying HR image patch with the dictionary in the high-resolution image… CONTINUE READING
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