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25 April 2000 Processing of CT sinograms acquired using a VRX detector
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A 'variable resolution x-ray detector' (VRX) capable of resolving beyond 100 cycles/main a single dimension has been proposed by DiBianca, et al. The use of detectors of this design for computed-tomography (CT) imaging requires novel preprocessing of data to correct for the detector's non- uniform imaging characteristics over its range of view. This paper describes algorithms developed specifically to adjust VRX data for varying magnification, source-to-detector range and beam obliquity and to sharpen reconstructions by deconvolving the ray impulse function. The preprocessing also incorporates nonlinear interpolation of VRX raw data into canonical CT sinogram formats.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lawrence M. Jordan, Frank A. DiBianca, Ping Zou, Joseph S. Laughter, and Herbert D. Zeman "Processing of CT sinograms acquired using a VRX detector", Proc. SPIE 3977, Medical Imaging 2000: Physics of Medical Imaging, (25 April 2000);

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