Consistency Conditions for Cone-Beam CT Data Acquired with a Straight-Line Source Trajectory |
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| Authors: | LEVINE+Margo+S SIDKY+Emil+Y PAN+Xiaochuan+Department+of+Radiology University+of+Chicago +S.Maryl +Ave. Chicago IL+ USA |
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| Affiliation: | LEVINE+Margo+S,SIDKY+Emil+Y,PAN+Xiaochuan+Department+of+Radiology,University+of+Chicago,5841+S.Maryl,+Ave.,Chicago,IL+60637,USA |
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| Abstract: | A consistency condition is developed for computed tomography(CT) projection data acquired from a straight-line X-ray source trajectory.The condition states that integrals of normalized projection data along detector lines parallel to the X-ray path must be equal.The projection data is required to be untruncated only along the detector lines parallel to the X-ray path,a less restrictive requirement compared to Fourier conditions that necessitate completely untruncated data.The condition is implemented numeri... |
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| Keywords: | data redundancy John's equation consistency conditions |
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