Observer signal-to-noise ratios for the ML-EM algorithm

Craig K. Abbey, Harrison H Barrett, Donald W. Wilson

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

41 Citations (Scopus)

Abstract

We have used an approximate method developed by Barrett, Wilson, and Tsui for finding the ensemble statistics of the maximum likelihood-expectation maximization algorithm to compute task-dependent figures of merit as a function of stopping point. For comparison, human- observer performance was assessed through conventional psychophysics. The results of our studies show the dependence of the optimal stopping point of the algorithm on the detection task. Comparisons of human and various model observers show that a channelized Hotelling observer with overlapping channels is the best predictor of human performance.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsHarold L. Kundel
Pages47-58
Number of pages12
Volume2712
StatePublished - 1996
EventMedical Imaging 1996: Image Perception - Newport Beach, CA, USA
Duration: Feb 14 1996Feb 14 1996

Other

OtherMedical Imaging 1996: Image Perception
CityNewport Beach, CA, USA
Period2/14/962/14/96

Fingerprint

stopping
Signal to noise ratio
signal to noise ratios
psychophysics
human performance
figure of merit
Maximum likelihood
Statistics
statistics
predictions

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Abbey, C. K., Barrett, H. H., & Wilson, D. W. (1996). Observer signal-to-noise ratios for the ML-EM algorithm. In H. L. Kundel (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2712, pp. 47-58)

Observer signal-to-noise ratios for the ML-EM algorithm. / Abbey, Craig K.; Barrett, Harrison H; Wilson, Donald W.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Harold L. Kundel. Vol. 2712 1996. p. 47-58.

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

Abbey, CK, Barrett, HH & Wilson, DW 1996, Observer signal-to-noise ratios for the ML-EM algorithm. in HL Kundel (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 2712, pp. 47-58, Medical Imaging 1996: Image Perception, Newport Beach, CA, USA, 2/14/96.
Abbey CK, Barrett HH, Wilson DW. Observer signal-to-noise ratios for the ML-EM algorithm. In Kundel HL, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2712. 1996. p. 47-58
Abbey, Craig K. ; Barrett, Harrison H ; Wilson, Donald W. / Observer signal-to-noise ratios for the ML-EM algorithm. Proceedings of SPIE - The International Society for Optical Engineering. editor / Harold L. Kundel. Vol. 2712 1996. pp. 47-58
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