Skip to Main content Skip to Navigation
Journal articles

A Dictionary Learning Approach for Poisson Image Deblurring

Abstract : The restoration of images corrupted by blur and Poisson noise is a key issue in medical and biological image processing. While most existing methods are based on variational models, generally derived from a Maximum A Posteriori (MAP) formulation, recently sparse representations of images have shown to be efficient approaches for image recovery. Following this idea, we propose in this paper a model containing three terms: a patch-based sparse representation prior over a learned dictionary, the pixel-based total variation regularization term and a data-fidelity term capturing the statistics of Poisson noise. The resulting optimization problem can be solved by an alternating minimization technique combined with variable splitting. Extensive experimental results suggest that in terms of visual quality, PSNR value and the method noise, the proposed algorithm outperforms state-of-the-art methods.
Complete list of metadatas

Cited literature [65 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-00834517
Contributor : Lionel Moisan <>
Submitted on : Friday, February 17, 2017 - 12:58:22 AM
Last modification on : Saturday, April 11, 2020 - 1:56:10 AM
Document(s) archivé(s) le : Thursday, May 18, 2017 - 1:04:26 PM

File

2013-13r.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Liyan Ma, Lionel Moisan, Jian Yu, Tieyong Zeng. A Dictionary Learning Approach for Poisson Image Deblurring. IEEE Transactions on Medical Imaging, Institute of Electrical and Electronics Engineers, 2013, 32 (7), pp.1277-1289. ⟨10.1109/TMI.2013.2255883⟩. ⟨hal-00834517v2⟩

Share

Metrics

Record views

334

Files downloads

919