Predicting human performance by a channelized Hotelling observer model

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

116 Citations (Scopus)

Abstract

A psychophysical experiment was conducted to measure the performance of human observers in detecting an exactly known signal against a random, nonuniform background in the presence of noise correlations introduced by post-detection filtering (postprocessing). In order to predict this human performance, a new model observer was synthesized by adding frequency-selective channels to the Hotelling observer model which we have previously used for assessment of image quality. This new `channelized' Hotelling model reduces approximately to a nonprewhitening (NPW) observer for images with uniform background and correlated noise introduced by filtering, and to a Hotelling observer for images with nonuniform background and no postprocessing. For images with both background nonuniformity and post processing, the performance of this channelized Hotelling observer agrees well with human performance while the other two observer models (NPW and Hotelling observer) fail.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages161-168
Number of pages8
Volume1768
ISBN (Print)0819409413
StatePublished - 1992
EventMathematical Methods in Medical Imaging - San Diego, CA, USA
Duration: Jul 23 1992Jul 24 1992

Other

OtherMathematical Methods in Medical Imaging
CitySan Diego, CA, USA
Period7/23/927/24/92

Fingerprint

human performance
background noise
nonuniformity
Image quality
Processing
Experiments

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Yao, J., & Barrett, H. H. (1992). Predicting human performance by a channelized Hotelling observer model. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 1768, pp. 161-168). Publ by Int Soc for Optical Engineering.

Predicting human performance by a channelized Hotelling observer model. / Yao, Jie; Barrett, Harrison H.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1768 Publ by Int Soc for Optical Engineering, 1992. p. 161-168.

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

Yao, J & Barrett, HH 1992, Predicting human performance by a channelized Hotelling observer model. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 1768, Publ by Int Soc for Optical Engineering, pp. 161-168, Mathematical Methods in Medical Imaging, San Diego, CA, USA, 7/23/92.
Yao J, Barrett HH. Predicting human performance by a channelized Hotelling observer model. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1768. Publ by Int Soc for Optical Engineering. 1992. p. 161-168
Yao, Jie ; Barrett, Harrison H. / Predicting human performance by a channelized Hotelling observer model. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1768 Publ by Int Soc for Optical Engineering, 1992. pp. 161-168
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