Search Results - "GEISLER, Wilson S"

Visual Perception and the Statistical Properties of Natural Scenes by GEISLER, Wilson S

“…The environments in which we live and the tasks we must perform to survive and reproduce have shaped the design of our perceptual systems through evolution and…”
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Contributions of ideal observer theory to vision research by Geisler, Wilson S.

“…► Basic concepts and uses of ideal observer theory are described. ► applications discussed include pattern vision, perceptual grouping, shape and depth,…”
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A method to integrate and classify normal distributions by Das, Abhranil, Geisler, Wilson S.

“…Univariate and multivariate normal probability distributions are widely used when modeling decisions under uncertainty. Computing the performance of such…”
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Optimal defocus estimation in individual natural images by Burge, Johannes, Geisler, Wilson S.

“…Defocus blur is nearly always present in natural images: Objects at only one distance can be perfectly focused. Images of objects at other distances are…”
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Optimal decoding of correlated neural population responses in the primate visual cortex by Seidemann, Eyal, Chen, Yuzhi, Geisler, Wilson S

“…Even the simplest environmental stimuli elicit responses in large populations of neurons in early sensory cortical areas. How these distributed responses are…”
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Neural correlates of perceptual similarity masking in primate V1 by Chen, Spencer Chin-Yu, Chen, Yuzhi, Geisler, Wilson S, Seidemann, Eyal

“…Visual detection is a fundamental natural task. Detection becomes more challenging as the similarity between the target and the background in which it is…”
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Simple summation rule for optimal fixation selection in visual search by Najemnik, Jiri, Geisler, Wilson S.

“…When searching for a known target in a natural texture, practiced humans achieve near-optimal performance compared to a Bayesian ideal searcher constrained…”
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Human vision is attuned to the diffuseness of natural light by Morgenstern, Yaniv, Geisler, Wilson S, Murray, Richard F

“…All images are highly ambiguous, and to perceive 3-D scenes, the human visual system relies on assumptions about what lighting conditions are most probable…”
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Independence of luminance and contrast in natural scenes and in the early visual system by Carandini, Matteo, Mante, Valerio, Frazor, Robert A, Bonin, Vincent, Geisler, Wilson S

“…The early visual system is endowed with adaptive mechanisms that rapidly adjust gain and integration time based on the local luminance (mean intensity) and…”
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Calcium imaging with genetically encoded indicators in behaving primates by Seidemann, Eyal, Chen, Yuzhi, Bai, Yoon, Chen, Spencer C, Mehta, Preeti, Kajs, Bridget L, Geisler, Wilson S, Zemelman, Boris V

“…Understanding the neural basis of behaviour requires studying brain activity in behaving subjects using complementary techniques that measure neural responses…”
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Similar neural and perceptual masking effects of low-power optogenetic stimulation in primate V1 by Chen, Spencer Chin-Yu, Benvenuti, Giacomo, Chen, Yuzhi, Kumar, Satwant, Ramakrishnan, Charu, Deisseroth, Karl, Geisler, Wilson S, Seidemann, Eyal

“…Can direct stimulation of primate V1 substitute for a visual stimulus and mimic its perceptual effect? To address this question, we developed an…”
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Human wavelength discrimination of monochromatic light explained by optimal wavelength decoding of light of unknown intensity by Zhaoping, Li, Geisler, Wilson S, May, Keith A

“…We show that human ability to discriminate the wavelength of monochromatic light can be understood as maximum likelihood decoding of the cone absorptions, with…”
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Visual search: the role of peripheral information measured using gaze-contingent displays by Geisler, Wilson S, Perry, Jeffrey S, Najemnik, Jiri

“…Two of the factors limiting progress in understanding the mechanisms of visual search are the difficulty of controlling and manipulating the retinal stimulus…”
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Effects of target-amplitude and background-contrast uncertainty predicted by a normalized template-matching observer by Oluk, Can, Geisler, Wilson S

“…When detecting targets under natural conditions, the visual system almost always faces multiple, simultaneous, dimensions of extrinsic uncertainty. This study…”
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Constrained sampling experiments reveal principles of detection in natural scenes by Sebastian, Stephen, Abrams, Jared, Geisler, Wilson S.

“…A fundamental everyday visual task is to detect target objects within a background scene. Using relatively simple stimuli, vision science has identified…”
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Detection of targets in filtered noise: whitening in space and spatial frequency by Zhang, Anqi, Geisler, Wilson S

“…Most studies of detection in complex backgrounds have measured and modeled human performance for statistically uniform (stationary) backgrounds. However,…”
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Optimal speed estimation in natural image movies predicts human performance by Burge, Johannes, Geisler, Wilson S.

“…Accurate perception of motion depends critically on accurate estimation of retinal motion speed. Here we first analyse natural image movies to determine the…”
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Visual Cortex Neurons of Monkeys and Cats: Temporal Dynamics of the Contrast Response Function by Albrecht, Duane G, Geisler, Wilson S, Frazor, Robert A, Crane, Alison M

“…Department of Psychology, University of Texas, Austin, Texas 78712 Albrecht, Duane G., Wilson S. Geisler, Robert A. Frazor, and Alison M. Crane. Visual Cortex…”
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Psychometric functions of uncertain template matching observers by Geisler, Wilson S

“…This theoretical note describes a simple equation that closely approximates the psychometric functions of template-matching observers with arbitrary levels of…”
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Natural image and receptive field statistics predict saccade sizes by Samonds, Jason M., Geisler, Wilson S., Priebe, Nicholas J.

“…Humans and other primates sample the visual environment using saccadic eye movements that shift a high-resolution fovea toward regions of interest to create a…”
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