A computational observer model of spatial contrast sensitivity: Effects of wavefront-based optics, cone mosaic structure, and inference engine
A computational observer model of spatial contrast sensitivity: Effects of wavefront-based optics, cone mosaic structure, and inference engine
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空间对比敏感度的计算观察者模型:基于波前的光学、锥形镶嵌结构和推理引擎的影响
DOI:
10.1101/378323
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
D. Brainard
中科院分区:
文献类型:
--
作者:
N. Cottaris;Haomiao Jiang;Xiaomao Ding;B. Wandell;D. Brainard
We present a computational observer model of the human spatial contrast sensitivity (CSF) function based on the Image Systems EngineeringTools for Biology (ISETBio) simulation framework. We demonstrate that ISETBio-derived CSFs agree well with CSFs derived using traditional ideal observer approaches, when the mosaic, optics, and inference engine are matched. Further simulations extend earlier work by considering more realistic cone mosaics, more recent measurements of human physiological optics, and the effect of varying the inference engine used to link visual representations to psy-chohysical performance. Relative to earlier calculations, our simulations show that the spatial structure of realistic cone mosaics reduces upper bounds on performance at low spatial frequencies, whereas realistic optics derived from modern wavefront measurements lead to increased upper bounds high spatial frequencies. Finally, we demonstrate that the type of inference engine used has a substantial effect on the absolute level of predicted performance. Indeed, the performance gap between an ideal observer with exact knowledge of the relevant signals and human observers is greatly reduced when the inference engine has to learn aspects of the visual task. ISETBio-derived estimates of stimulus representations at different stages along the visual pathway provide a powerful tool for computing the limits of human performance.
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DOI:
10.1364/josaa.11.003123
发表时间:
1994-12
期刊:
Journal of the Optical Society of America. A, Optics, image science, and vision
影响因子:
--
作者:
David R. Williams;David H. Brainard;Matthew J. McMahon;R. Navarro
通讯作者:
David R. Williams;David H. Brainard;Matthew J. McMahon;R. Navarro
影响因子:
1.8
作者:
Bradley, Chris;Abrams, Jared;Geisler, Wilson S.
通讯作者:
Geisler, Wilson S.
影响因子:
4.4
作者:
R. A. Done;J. Landrum;Fernandez;Sara L. Tarsis
通讯作者:
R. A. Done;J. Landrum;Fernandez;Sara L. Tarsis
影响因子:
56.9
作者:
OHZAWA, I;DEANGELIS, GC;FREEMAN, RD
通讯作者:
FREEMAN, RD
影响因子:
1.8
作者:
Tuten,WilliamS;Cooper,RobertF;Tiruveedhula,Pavan;Dubra,Alfredo;Roorda,Austin;Cottaris,NicolasP;Brainard,DavidH;Morgan,JessicaIW
通讯作者:
Morgan,JessicaIW