Retrieval Compensated Group Structured Sparsity for Image Super-Resolution

@article{Liu2017RetrievalCG,
  title={Retrieval Compensated Group Structured Sparsity for Image Super-Resolution},
  author={Jiaying Liu and Wenhan Yang and Xinfeng Zhang and Zongming Guo},
  journal={IEEE Transactions on Multimedia},
  year={2017},
  volume={19},
  pages={302-316}
}
Sparse representation-based image super-resolution is a well-studied topic; however, a general sparse framework that can utilize both internal and external dependencies remains unexplored. In this paper, we propose a group-structured sparse representation approach to make full use of both internal and external dependencies to facilitate image super-resolution. External compensated correlated information is introduced by a two-stage retrieval and refinement. First, in the global stage, the… CONTINUE READING
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