Fast maximum entropy approximation in SPECT using the RBI-MAP algorithm

David S. Lalush, Eric Frey, Benjamin Tsui

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

A method is presented for approximating constrained maximum entropy (ME) reconstructions of SPECT data with modifications to a block-iterative MAP algorithm. It is shown that the RBI-MAP algorithm, if used with a dynamic scheme for estimating β, can approximate constrained ME solutions in twenty or fewer iterations. Finally, results for various methods of achieving feasible images on a simulation of T1-201 cardiac SPECT data are compared.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposium and Medical Imaging Conference
PublisherIEEE
Pages1157-1164
Number of pages8
Volume2
ISBN (Print)0780350227
StatePublished - 1999
EventProceedings of the 1998 IEEE Nuclear Science Symposium Conference Record - Toronto, Que, Can
Duration: Nov 8 1998Nov 14 1998

Other

OtherProceedings of the 1998 IEEE Nuclear Science Symposium Conference Record
CityToronto, Que, Can
Period11/8/9811/14/98

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ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

Cite this

Lalush, D. S., Frey, E., & Tsui, B. (1999). Fast maximum entropy approximation in SPECT using the RBI-MAP algorithm. In IEEE Nuclear Science Symposium and Medical Imaging Conference (Vol. 2, pp. 1157-1164). IEEE.

Fast maximum entropy approximation in SPECT using the RBI-MAP algorithm. / Lalush, David S.; Frey, Eric; Tsui, Benjamin.

IEEE Nuclear Science Symposium and Medical Imaging Conference. Vol. 2 IEEE, 1999. p. 1157-1164.

Research output: Chapter in Book/Report/Conference proceedingChapter

Lalush, DS, Frey, E & Tsui, B 1999, Fast maximum entropy approximation in SPECT using the RBI-MAP algorithm. in IEEE Nuclear Science Symposium and Medical Imaging Conference. vol. 2, IEEE, pp. 1157-1164, Proceedings of the 1998 IEEE Nuclear Science Symposium Conference Record, Toronto, Que, Can, 11/8/98.
Lalush DS, Frey E, Tsui B. Fast maximum entropy approximation in SPECT using the RBI-MAP algorithm. In IEEE Nuclear Science Symposium and Medical Imaging Conference. Vol. 2. IEEE. 1999. p. 1157-1164
Lalush, David S. ; Frey, Eric ; Tsui, Benjamin. / Fast maximum entropy approximation in SPECT using the RBI-MAP algorithm. IEEE Nuclear Science Symposium and Medical Imaging Conference. Vol. 2 IEEE, 1999. pp. 1157-1164
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