نتایج جستجو برای: hotelling observer

تعداد نتایج: 28725  

2014
Ali N. Avanaki Kathryn S. Espig Albert Xthona Tom Kimpe Predrag R. Bakic Andrew D. A. Maidment

Within the framework of a virtual clinical trial for breast imaging, we aim to develop numerical observers that follow the same detection performance trends as those of a typical human observer. In our prior work, we showed that by including spatio-temporal contrast sensitivity function (stCSF) of human visual system (HVS) in a multi-slice channelized Hotelling observer (msCHO), we can correctl...

1997
W. B. Jackson M. R. Said D. A. Jared J. O. Larimer J. L. Gille J. Lubin

We demonstrate that human-vision-model-based image quality metrics not only correlate strongly with subjective evaluations of image quality but also with human observer performance on visual recognition tasks. By varying amorphous silicon image system design parameters, the performance of human observers in target identification using the resulting test images was measured and compared with the...

2001
Jeffrey A. Fessler Anastasia Yendiki

What type of regularization method is optimal for penalized-likelihood image reconstruction when the imaging task is signal detection based on a channelized Hotelling (CHO) observer? To answer such questions, one would like to have a simple analytical expression (even if approximate) for the performance (SNR) of the CHO observer given different reconstruction methods. Bonetto, Qi, and Leahy (IE...

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