A simple and fast ASD-POCS algorithm for image reconstruction

CONCLUSIONS: The derived simple matrix expressions of the gradients of these TV-type norms may simplify the implementation of the ASD-POCS algorithm and speed up the ASD process. Additionally, a general gradient expression suitable to all the sparse transform-based optimization models is demonstrated so that the ASD-POCS algorithm may be tailored to extended image reconstruction fields with accelerated computational speed.PMID:33843721 | DOI:10.3233/XST-210858
Source: Journal of X-Ray Science and Technology - Category: Radiology Authors: Source Type: research
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