Equiangular fan-beam computerized tomography reconstruction for a noncircular scanning locus

Katherine Redford; Ge Wang; Michael W. Vannier

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Equiangular fan-beam computerized tomography reconstruction for a noncircular scanning locus

机译：Equiangular fan-beam computerized tomography reconstruction for a noncircular scanning locus

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A derivative-free, two-dimensional equiangular fan-beam reconstruction formula for a noncircular scanning locus is derived under three practical conditions. The formula contains the same terms as the traditional formula, except that the constant source-to-origin distance is replaced by the source-to-origin distance as a function of the rotation angle. The correctness of this formula is tested in numerical simulation. The potential applications of the formula include fourth-generation CT, electron-beam CT, SPECT, and x-ray microtomography. # 1999 Society of Photo-Optical Instrumentation Engineers. S0091-3286(99)02208-4 Subject terms: medical imaging; x-rays; image reconstruction; image quality; imaging system; microscopy. Paper 980183 received May 4, 1998; revised manuscript received Feb. 19, 1999; accepted for publication Mar. 2, 1999.

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《Optical Engineering》 |1999年第9期|1335-1339|共5页
作者
Katherine Redford; Ge Wang; Michael W. Vannier;
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University of Iowa Hospitals and Clinics/ 200 Hawkins Drive lowa City, Iowa 52242 E-mail: kredford@icaen.uiowa.edu ge-wang@ieee.org michael-vannier@uiowa.edu;

University of Iowa Hospitals and Clinics /200 Hawkins Drive lowa City, Iowa 52242 E-mail: kredford@icaen.uiowa.edu ge-wang@ieee.org michael-vannier@uiowa.edu;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学仪器;
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Equiangular fan-beam computerized tomography reconstruction for a noncircular scanning locus

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