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Direct linkKogo, Naoki; Strecha, Christoph; Van Gool, Luc; Wagemans, Johan – Psychological Review, 2010
Human visual perception is a fundamentally relational process: Lightness perception depends on luminance ratios, and depth perception depends on occlusion (difference of depth) cues. Neurons in low-level visual cortex are sensitive to the difference (but not the value itself) of signals, and these differences have to be used to reconstruct the…
Descriptors: Cues, Depth Perception, Mathematical Models, Visual Perception
Howe, Piers D. L.; Sagreiya, Hersh; Curtis, Dwight L.; Zheng, Chengjie; Livingstone, Margaret S. – Psychological Review, 2007
Comments on an article by Bressan. Recently, a double-anchoring theory (DAT) of lightness perception was proposed (P. Bressan, 2006), which offers explanations for all the data explained by the original anchoring theory (A. Gilchrist et al., 1999), as well as a number of additional lightness phenomena. Consequently, DAT can account for an…
Descriptors: Visual Perception, Light, Lighting, Theories
Bressan, Paola – Psychological Review, 2007
Replies to comments mad by Howe et al. on the current author's original article. The double-anchoring theory of lightness (P. Bressan, 2006b) assumes that any given region belongs to a set of frameworks, created by Gestalt grouping principles, and receives a provisional lightness within each of them; the region's final lightness is a weighted…
Descriptors: Color, Vision, Light, Visual Perception
Bressan, Paola – Psychological Review, 2006
The specific gray shades in a visual scene can be derived from relative luminance values only when an anchoring rule is followed. The double-anchoring theory I propose in this article, as a development of the anchoring theory of Gilchrist et al. (1999), assumes that any given region (a) belongs to one or more frameworks, created by Gestalt…
Descriptors: Theories, Light, Visual Perception, Visual Stimuli
Peer reviewedTroost, Jimmy M.; And Others – Psychological Review, 1991
It is argued that a reflectance channel that requires priority information is shown to be less plausible for the human visual system than J. L. Dannemiller (1989) argued. In the response, Dannemiller replies that lightness is not an illuminant invariant surface descriptor when daylight illuminant substitutions are considered. (SLD)
Descriptors: Color, Light, Luminescence, Sensory Experience
Purves, Dale; Williams, S. Mark; Nundy, Surajit; Lotto, R. Beau – Psychological Review, 2004
The relationship between luminance (i.e., the photometric intensity of light) and its perception (i.e., sensations of lightness or brightness) has long been a puzzle. In addition to the mystery of why these perceptual qualities do not scale with luminance in any simple way, "illusions" such as simultaneous brightness contrast, Mach bands,…
Descriptors: Light, Probability, Vision, Visual Perception
