Iterative Directional Total Variation Refinement for Compressive Sensing Image Reconstruction

@article{Fei2013IterativeDT,
  title={Iterative Directional Total Variation Refinement for Compressive Sensing Image Reconstruction},
  author={Xuan Fei and Z. Wei and L. Xiao},
  journal={IEEE Signal Processing Letters},
  year={2013},
  volume={20},
  pages={1070-1073}
}
We propose a novel compressive sensing (CS) image reconstruction method based on iterative directional total variation (TV) refinement. As is generally known, classical TV-based CS reconstruction methods tend to produce over-smoothed image edges and texture details, since they favor piece-wise constant solutions. Hence, directional TV is introduced to describe the sparsity of the image gradient in order to overcome this drawback. However, it is difficult to estimate orientation field robustly… Expand
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