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Proceedings Paper

A new parametrization for the three-class ideal observer's decision rule
Author(s): Darrin C. Edwards
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Paper Abstract

Despite theoretical and practical difficulties, we are attempting to extend receiver operating characteristic (ROC) analysis to tasks with more than two classes. Previously we developed explicit analytical expressions for the behavior of the ideal observer acting on univariate trinormal data, and for the region of support of the ideal observer's decision variables when acting on bivariate trinormal data. Although explicit calculation of the ideal observer's behavior for general underlying data is difficult, we have developed a new set of parameters for describing the ideal observer's decision rule which may aid in analytic or numeric computation of the ideal observer's behavior.

Paper Details

Date Published: 28 February 2012
PDF: 9 pages
Proc. SPIE 8318, Medical Imaging 2012: Image Perception, Observer Performance, and Technology Assessment, 83180E (28 February 2012); doi: 10.1117/12.913350
Show Author Affiliations
Darrin C. Edwards, The Univ. of Chicago (United States)

Published in SPIE Proceedings Vol. 8318:
Medical Imaging 2012: Image Perception, Observer Performance, and Technology Assessment
Craig K. Abbey; Claudia R. Mello-Thoms, Editor(s)

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