Maximum a-posteriori detection and figures of merit for detection under uncertainty

Robert F. Wagner; Kyle J. Myers; Markku J. Tapiovaara; David G. Brown; Arthur E. Burgess

doi:10.1117/12.18797

1 July 1990 Maximum a-posteriori detection and figures of merit for detection under uncertainty

Robert F. Wagner, Kyle J. Myers, Markku J. Tapiovaara, David G. Brown, Arthur E. Burgess

Proceedings Volume 1231, Medical Imaging IV: Image Formation; (1990) https://doi.org/10.1117/12.18797
Event: Medical Imaging '90, 1990, Newport Beach, CA, United States

Abstract

The problem of image assessment is examined for several cases of parameter uncertainty. Several ideal and sub-ideal observers are considered and figures of merit (FOM) for describing their performance are considered. Advantages and disadvantages of these FOMs are enumerated. The spectrum of noise equivalent quanta, NEQ(f), appears to be the most useful for evaluating a broad class of practical problems since the performance of the best-linear as well as the ideal non-linear observers considered here is monotonic with its components. However, more work is required within this context to quantify the effects of the "null space," or regions in object space for which NEQ = 0. These regions derive from incomplete measurement sets and may lead to severe image degrading artifacts that are not adequately covered by any FOMs considered here.

Citation Download Citation

Robert F. Wagner, Kyle J. Myers, Markku J. Tapiovaara, David G. Brown, and Arthur E. Burgess "Maximum a-posteriori detection and figures of merit for detection under uncertainty", Proc. SPIE 1231, Medical Imaging IV: Image Formation, (1 July 1990); https://doi.org/10.1117/12.18797

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