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Comparison of Dictionary-Based Image Reconstruction Algorithms for Inverse Problems | IEEE Conference Publication | IEEE Xplore

Comparison of Dictionary-Based Image Reconstruction Algorithms for Inverse Problems


Abstract:

Many inverse problems in imaging involve measurements that are in the form of convolutions. Sparsity priors are widely exploited in their solutions for regularization as ...Show More

Abstract:

Many inverse problems in imaging involve measurements that are in the form of convolutions. Sparsity priors are widely exploited in their solutions for regularization as these problems are generally ill-posed. In this work, we develop image reconstruction methods for these inverse problems using patchbased and convolutional sparse models. The resulting regularized inverse problems are solved via the alternating direction method of multipliers (ADMM). The performance of the developed algorithms is investigated for an application in computational spectral imaging. Simulation results suggest that the convolutional sparse model provides similar reconstruction performance with the patch-based model; but the convolutional method is more advantageous in terms of computational cost.
Date of Conference: 05-07 October 2020
Date Added to IEEE Xplore: 07 January 2021
ISBN Information:
Print on Demand(PoD) ISSN: 2165-0608
Conference Location: Gaziantep, Turkey

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