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- W1429705028 abstract "In various applications of computed tomography (CT), it is common that the reconstructed object is over the field of view (FOV) or we may intend to sue a FOV which only covers the region of interest (ROI) for the sake of reducing radiation dose. These kinds of imaging situations often lead to interior reconstruction problems which are difficult cases in the reconstruction field of CT, due to the truncated projection data at every view angle. In this paper, an interior reconstruction method is developed based on a rotation-translation (RT) scanning model. The method is implemented by first scanning the reconstructed region, and then scanning a small region outside the support of the reconstructed object after translating the rotation centre. The differentiated backprojection (DBP) images of the reconstruction region and the small region outside the object can be respectively obtained from the two-time scanning data without data rebinning process. At last, the projection onto convex sets (POCS) algorithm is applied to reconstruct the interior region. Numerical simulations are conducted to validate the proposed reconstruction method." @default.
- W1429705028 created "2016-06-24" @default.
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- W1429705028 date "2014-01-01" @default.
- W1429705028 modified "2023-09-27" @default.
- W1429705028 title "Interior reconstruction method based on rotation-translation scanning model" @default.
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- W1429705028 doi "https://doi.org/10.3233/xst-130407" @default.
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