Total Variation Iterative Linear Expansion of Thresholds with Applications in CT

@article{Tsiper2018TotalVI,
  title={Total Variation Iterative Linear Expansion of Thresholds with Applications in CT},
  author={Shahar Tsiper and Oren Solomon and Yonina C. Eldar},
  journal={2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)},
  year={2018},
  pages={3949-3953}
}
The iterative linear expansion of threshold framework, or iLET, offers a new approach for solving image restoration problems under sparsity assumptions. Instead of estimating the reconstructed image directly, the iLET paradigm parametrizes the reconstruction process as a linear combination of elementary thresholding functions and optimizes over their coefficients. Here, we rely on the fast and accurate convergence of iLET, and propose an extension of this framework, under the assumption that… CONTINUE READING

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