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Proceedings Paper

Estimation of human-observer templates in two-alternative forced-choice experiments
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Paper Abstract

A method is presented for directly estimating the weights, or 'linear template' used by an observer performing a signal- known-exactly detection task in a two-alternative forced- choice (2-AFC) experiment. The approach generalizes prior work by Ahumada, and Beard and Ahumada, to 2-AFC experiments and correlated image noise, and yields an unbiased estimate of the observer template. The estimation procedure is checked against a known linear detection strategy, and human-observer templates estimated from some preliminary psychophysical experiments are shown.

Paper Details

Date Published: 24 May 1999
PDF: 12 pages
Proc. SPIE 3663, Medical Imaging 1999: Image Perception and Performance, (24 May 1999); doi: 10.1117/12.349653
Show Author Affiliations
Craig K. Abbey, Cedars-Sinai Medical Ctr. (United States)
Miguel P. Eckstein, Cedars-Sinai Medical Ctr. (United States)
Francois O. Bochud, Cedars-Sinai Medical Ctr. (United States)


Published in SPIE Proceedings Vol. 3663:
Medical Imaging 1999: Image Perception and Performance
Elizabeth A. Krupinski, Editor(s)

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