@article{correlationpreservingsparsecodingover,
  title = {Correlation Preserving Sparse Coding Over Multi-level Dictionaries for Image Denoising},
  author = {Rui Chen and Huizhu Jia and Xiaodong Xie and Wen Gao},
  year = {2016},
  eprint = {1612.08049},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1612.08049v1},
}