Visual signal detection II Signal-location identification
- 1 August 1984
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America A
- Vol. 1 (8) , 906-910
- https://doi.org/10.1364/josaa.1.000906
Abstract
We have measured the effect of signal-location uncertainty on the detectability of simple visual signals in uncorrelated image noise. An M-alternative forced-choice signal-location identification technique was used with values of M ranging from 2 to 1800. We find high statistical efficiency (50% for aperiodic signals), and results from one value of M can be used to predict all others. The results are consistent with the view that humans can act as suboptimal maximum a posteriori probability observers.Keywords
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