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Visual perception is the ability to interpret the surrounding environment through photopic vision, color vision, scotopic vision, and mesopic vision, using light in the visible spectrum reflected by objects in the environment. This is different from visual acuity, which refers to how clearly a person sees. A person can have problems with visual perceptual processing even if they have 20/20 vision.
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In visual perception, structure from motion (SFM) refers to how humans recover depth structure from object's motion. The human visual field has an important function: capturing the three-dimensional structures of an object using different kinds of visual cues.
Visual crowding is the inability to view a target stimulus distinctly when presented in a clutter. Crowding impairs the ability to discriminate object features and contours among flankers, which in turn impairs people's ability to respond appropriately to the target stimulus.
Ensemble coding, also known as ensemble perception or summary representation, is a theory in cognitive neuroscience about the internal representation of groups of objects in the human mind. Ensemble coding proposes that such information is recorded via summary statistics, particularly the average or variance. Experimental evidence tends to support the theory for low-level visual information, such as shapes and sizes, as well as some high-level features such as face gender. Nonetheless, it remains unclear the extent to which ensemble coding applies to high-level or non-visual stimuli, and the theory remains the subject of active research.
Julie Marie Harris has been Director of Research in the School of Psychology and Neuroscience (2011–21) and a Professor of Vision Science at the University of St Andrews. Her research investigates visual systems and camouflage.
An accidental viewpoint is a singular position from which an image can be perceived, creating either an ambiguous image or an illusion. The image perceived at this angle is viewpoint-specific, meaning it cannot be perceived at any other position, known as generic or non-accidental viewpoints. These view-specific angles are involved in object recognition. In its uses in art and other visual illusions, the accidental viewpoint creates the perception of depth often on a two-dimensional surface with the assistance of monocular cues.
Roland William Fleming, FRSB is a British and German interdisciplinary researcher specializing in the visual perception of objects and materials. He is the Kurt Koffka Professor of Experimental Psychology at Justus Liebig University of Giessen. and the Executive Director of the Center for Mind, Brain and Behavior of the Universities of Marburg and Giessen. He is also co-Spokesperson for the Research Cluster “The Adaptive Mind”.
References
- ↑ Hillis, J. M.; Ernst, M. O.; Banks, M. S.; Landy, M. S. (2002-11-22). "Combining Sensory Information: Mandatory Fusion Within, but Not Between, Senses". Science. 298 (5598): 1627–1630. CiteSeerX 10.1.1.278.6134 . doi:10.1126/science.1075396. ISSN 0036-8075. PMID 12446912. S2CID 15607270.
- ↑ Hillis, James M.; Watt, Simon J.; Landy, Michael S.; Banks, Martin S. (2004-12-01). "Slant from texture and disparity cues: Optimal cue combination". Journal of Vision. 4 (12): 967–92. doi: 10.1167/4.12.1 . ISSN 1534-7362. PMID 15669906.
- ↑ Young, Mark J.; Landy, Michael S.; Maloney, Laurence T. (1993-12-01). "A perturbation analysis of depth perception from combinations of texture and motion cues". Vision Research. 33 (18): 2685–2696. CiteSeerX 10.1.1.63.1844 . doi:10.1016/0042-6989(93)90228-O. PMID 8296465. S2CID 14082052.
- ↑ Oruç, İpek; Maloney, Laurence T.; Landy, Michael S. (2003-10-01). "Weighted linear cue combination with possibly correlated error". Vision Research. 43 (23): 2451–2468. doi: 10.1016/S0042-6989(03)00435-8 . PMID 12972395.
- ↑ "Bergen & Landy. Computational Modeling of Visual Texture Segregation. From M. Landy and J. A. Movshon (eds), Computational Models of Visual Processing (pp. 253-271). Cambridge, MA: MIT Press (1991)". canvas.brown.edu. Retrieved 2017-07-14.
- ↑ Chalupa, Leo M.; Werner, John Simon (2004). The Visual Neurosciences. MIT Press. ISBN 9780262033084.
- ↑ Landy, Michael S.; Bergen, James R. (1991). "Texture segregation and orientation gradient". Vision Research. 31 (4): 679–691. CiteSeerX 10.1.1.78.408 . doi:10.1016/0042-6989(91)90009-T. PMID 1843770. S2CID 1852089.
- ↑ Girshick, Ahna R.; Landy, Michael S.; Simoncelli, Eero P. (2011). "Cardinal rules: visual orientation perception reflects knowledge of environmental statistics". Nature Neuroscience. 14 (7): 926–932. doi:10.1038/nn.2831. PMC 3125404 . PMID 21642976.
- ↑ Larsson, Jonas; Landy, Michael S.; Heeger, David J. (2006). "Orientation-selective adaptation to first-and second-order patterns in human visual cortex". Journal of Neurophysiology. 95 (2): 862–881. doi:10.1152/jn.00668.2005. PMC 1538978 . PMID 16221748.
- ↑ Mamassian, Pascal; Landy, Michael; Maloney, Laurence T. (2002). Bayesian modelling of visual perception. pp. 13–36. doi:10.7551/mitpress/5583.003.0005. ISBN 9780262264327.
{{cite book}}:|journal=ignored (help) - ↑ SciFri (2012-10-12), Step Into an Optical Illusion , retrieved 2017-07-14
