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Communication Dans Un Congrès Année : 2018

Divergent-beam backprojection-filtration formula with applications to region-of-interest imaging

Résumé

We propose a new backprojection-filtration (BPF) method for cone-beam computed tomography (CBCT) with flat-panel detectors over circular orbits. The method is exact in the fan-beam geometry and provides an approximate CBCT reconstruction that is different from the standard Feldkamp-Davis-Kress (FDK) method. More interestingly, it can be used for region-of-interest (ROI) reconstruction by complementing a truncated low-noise acquisition with dense angular sampling by additional non-truncated views that are either high-noise or angularly undersampled.
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Dates et versions

hal-01807404 , version 1 (04-06-2018)

Identifiants

  • HAL Id : hal-01807404 , version 1

Citer

Aymeric Reshef, Cyril Riddell, Yves Trousset, Saïd Ladjal, Isabelle Bloch. Divergent-beam backprojection-filtration formula with applications to region-of-interest imaging. The Fifth International Conference on Image Formation in X-Ray Computed Tomography, Jun 2018, Salt Lake City, United States. ⟨hal-01807404⟩
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