Benefits of angular expression to reconstruction algorithms for collimators with spatially varying focal lengths

IEEE Transactions on Medical Imaging

Volumn 16, Issue 5, 1997, Pages 527-531

  You, Jiangsheng ^a   Bao, Shanglian ^a   Liang, Zhengrong ^a  

^a PEKING UNIVERSITY   (China)

Author keywords

Angular detector coordinate; Backprojection filtering; Collimators with spatially varying focal length; Convolution backprojection; Fan beam geometry

Indexed keywords

ALGORITHM; ARTICLE; ARTIFACT; BIOLOGICAL MODEL; COMPUTER SIMULATION; HUMAN; IMAGE ENHANCEMENT; IMAGE PROCESSING; IMAGE QUALITY; INSTRUMENTATION; METHODOLOGY; SINGLE PHOTON EMISSION COMPUTER TOMOGRAPHY;

ALGORITHMS; ARTIFACTS; COMPUTER SIMULATION; HUMANS; IMAGE ENHANCEMENT; IMAGE PROCESSING, COMPUTER-ASSISTED; MODELS, BIOLOGICAL; PHANTOMS, IMAGING; TOMOGRAPHY, EMISSION-COMPUTED, SINGLE-PHOTON;

ALGORITHMS; COMPUTER SIMULATION; GEOMETRY; IMAGE RECONSTRUCTION; MEDICAL IMAGING; OPTICAL COLLIMATORS;

ANGULAR DETECTOR COORDINATE; BACKPROJECTION FILTERING; COLLIMATORS WITH SPATIALLY VARYING FOCAL LENGTHS; CONVOLUTION BACKPROJECTION; FAN BEAM; SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY;

COMPUTERIZED TOMOGRAPHY;

EID: 0031240169     PISSN: 02780062     EISSN: None     Source Type: Journal    
DOI: 10.1109/42.640742     Document Type: Article

References (10)

1. L. A. Shepp and B. F. Logan, The Fourier reconstruction of a head section, IEEE Trans. Nucl. Sci., vol. NS-21, pp. 21-13, 1974.
2. G. T. Herman and A. Naparstek, Fast image reconstruction based on a Radon inversion formula appropriate for rapidly collected data, SIAM J. Appl. Math., vol. 33, pp. 511-533, 1977.
3. B. K. Horn, Fan-beam reconstruction algorithms, Proc. IEEE, vol. 67, pp. 1616-1623, 1979.
4. G. T. Gullberg, C. R. Crawford, and B. M. W. Tsui, Reconstruction algorithm for fan-beam with a displaced center-of rotation, IEEE Trans. Med. Imag., vol. MI-5, pp. 23-29, 1986.
5. G. L. Zeng, G. T. Gullberg, R. J. Jaszczak, and J. Li, Fan-beam reconstruction algorithm for a spatially varying focal length collimator, IEEE Trans. Med. Imag., vol. 12, pp. 575-582, 1993.
6. Z. Cao and B. M. W. Tsui, An analytical reconstruction algorithm for multifocal converging-beam SPECT, Phys. Med. Biol., vol. 39, pp. 281-291, 1994.
7. G. L. Zeng and G. T. Gullberg, A backprojection filtering algorithm for a spatially varying focal length collimator, IEEE Trans. Med. Imag., vol. MI-13, pp. 549-556, 1994.
8. G. T. Herman, Ed., Image reconstruction from projections,Topics in Applied Physics. New York: Springer-Verlag, 1980, vol. 32.
9. F. Natterer, The Mathematics of Computerized Tomography. New York: Wiley, 1986.
10. J. You, A harmonic decomposition reconstruction algorithm for spatially varying focal length fan-beam collimators, IEEE Trans. Med. Imag., submitted for publication.