Model of visual contrast gain control and pattern masking.

@article{citeulike:2064593, abstract = {We have implemented a model of contrast gain and control in human vision that incorporates a number of key features, including a contrast sensitivity function, multiple oriented bandpass channels, accelerating nonlinearities, and a devisive inhibitory gain control pool. The parameters of this model have been optimized through a fit to the recent data that describe masking of a Gabor function by cosine and Gabor masks [J. M. Foley, "Human luminance pattern mechanisms: masking experiments require a new model," J. Opt. Soc. Am. A 11, 1710 (1994)]. The model achieves a good fit to the data. We also demonstrate how the concept of recruitment may accommodate a variant of this model in which excitatory and inhibitory paths have a common accelerating nonlinearity, but which include multiple channels tuned to different levels of contrast.}, address = {NASA Ames Research Center, Moffett Field, California 94035-1000, USA.}, author = {Watson, A. B. and Solomon, J. A. }, citeulike-article-id = {2064593}, issn = {1084-7529}, journal = {J Opt Soc Am A Opt Image Sci Vis}, keywords = {computational\_model, contrast, gain\_control, normalization, psychophysics}, month = {September}, number = {9}, pages = {2379--2391}, posted-at = {2007-12-06 00:51:18}, priority = {2}, title = {Model of visual contrast gain control and pattern masking.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/9291608}, volume = {14}, year = {1997} }

TY - JOUR ID - citeulike:2064593 L3 - citeulike-article-id:2064593 TI - Model of visual contrast gain control and pattern masking. JF - J Opt Soc Am A Opt Image Sci Vis VL - 14 IS - 9 SP - 2379 EP - 2391 AD - NASA Ames Research Center, Moffett Field, California 94035-1000, USA. SN - 1084-7529 N2 - We have implemented a model of contrast gain and control in human vision that incorporates a number of key features, including a contrast sensitivity function, multiple oriented bandpass channels, accelerating nonlinearities, and a devisive inhibitory gain control pool. The parameters of this model have been optimized through a fit to the recent data that describe masking of a Gabor function by cosine and Gabor masks [J. M. Foley, "Human luminance pattern mechanisms: masking experiments require a new model," J. Opt. Soc. Am. A 11, 1710 (1994)]. The model achieves a good fit to the data. We also demonstrate how the concept of recruitment may accommodate a variant of this model in which excitatory and inhibitory paths have a common accelerating nonlinearity, but which include multiple channels tuned to different levels of contrast. KW - computational_model KW - contrast KW - gain_control KW - normalization KW - psychophysics AU - Watson, AB AU - Solomon, JA PY - 1997/09// UR - http://view.ncbi.nlm.nih.gov/pubmed/9291608 ER -