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A soft-threshold filtering approach for reconstruction from a limited number of projections
In the medical imaging field, discrete gradient transform (DGT) is widely used as a sparsifying operator to define the total variation (TV). Recently, TV minimization has become a hot topic in image reconstruction and is usually implemented using the steepest descent method (SDM). Since TV minimizat...
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| Hlavní autoři: | , |
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| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
2010
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| Témata: | |
| On-line přístup: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3021964/ https://ncbi.nlm.nih.gov/pubmed/20571212 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1088/0031-9155/55/13/022 |
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