Derivative-Hilbert-Backprojection based image reconstruction from truncated projections in helical cone-beam CT
In helical cone-beam computed tomography(CT), Feldkamp-Davis-Kress(FDK) based image reconstruction algorithms are by far the most popular. However, artifacts are commonly met in the presence of lateral projection truncation. The reason is that the ramp filter is global. To restrain the truncation ar...
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Veröffentlicht in: | 核技术(英文版) 2015-04, Vol.26 (2), p.45-53 |
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