Bayesian multiscale tomographic reconstruction

R. D. Nowak, E. Kolaczyk, D. Lalush, Benjamin Tsui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper describes a new Bayesian modeling and analysis method for emission computed tomography based on a novel multiscale framework. The class of multiscale priors has the interesting feature that the 'non-informative' member yields the traditional maximum likelihood solution; other choices are made to reflect prior belief as to the smoothness of the unknown intensity. Remarkably, this Bayesian multiscale framework admits a novel maximum a posteriori (MAP) reconstruction procedure using an expectation-maximization (EM) algorithm, in which the EM update equations have simple, closed-form expressions. The potential of this new framework is assessed using the Zubal brain phantom and simulated SPECT studies.

Original languageEnglish (US)
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
PublisherIEEE
Pages3779-3782
Number of pages4
Volume6
StatePublished - 2000
Externally publishedYes
Event2000 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing - Istanbul, Turkey
Duration: Jun 5 2000Jun 9 2000

Other

Other2000 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing
CityIstanbul, Turkey
Period6/5/006/9/00

Fingerprint

Maximum likelihood
brain
Tomography
Brain
tomography

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics

Cite this

Nowak, R. D., Kolaczyk, E., Lalush, D., & Tsui, B. (2000). Bayesian multiscale tomographic reconstruction. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 6, pp. 3779-3782). IEEE.

Bayesian multiscale tomographic reconstruction. / Nowak, R. D.; Kolaczyk, E.; Lalush, D.; Tsui, Benjamin.

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 6 IEEE, 2000. p. 3779-3782.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nowak, RD, Kolaczyk, E, Lalush, D & Tsui, B 2000, Bayesian multiscale tomographic reconstruction. in ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. vol. 6, IEEE, pp. 3779-3782, 2000 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing, Istanbul, Turkey, 6/5/00.
Nowak RD, Kolaczyk E, Lalush D, Tsui B. Bayesian multiscale tomographic reconstruction. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 6. IEEE. 2000. p. 3779-3782
Nowak, R. D. ; Kolaczyk, E. ; Lalush, D. ; Tsui, Benjamin. / Bayesian multiscale tomographic reconstruction. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 6 IEEE, 2000. pp. 3779-3782
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