Results 21 to 30 of about 1,210,014 (249)
Von Bezold assimilation effect reverses in stereoscopic conditions [PDF]
, 2004 Lightness contrast and lightness assimilation are opposite phenomena: in contrast, grey targets appear darker when bordering bright surfaces (inducers) rather than dark ones; in assimilation, the opposite occurs.
A Aspect +75 more
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Clinical Ophthalmology, 2022 Marcus Werner Storch,1 Greta Zinser,1 Peer Lauermann,1 Mohammed Haitham Khattab,1 Anna Nguyen-Höhl,1 Dirk Raddatz,2 Katja Gollisch,2 Josep Callizo,1 Hans Hoerauf,1 Nicolas Feltgen1 1Department of Ophthalmology, University of Göttingen, Göttingen ...
Storch MW +9 more
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Crowdsourcing visual perception experiments: a case of contrast threshold [PDF]
PeerJ, 2019 Crowdsourcing has commonly been used for psychological research but not for studies on sensory perception. A reason is that in online experiments, one cannot ensure that the rigorous settings required for the experimental environment are replicated.
Kyoshiro Sasaki, Yuki Yamada
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A biologically inspired computational vision front-end based on a self-organised pseudo-randomly tessellated artificial retina [PDF]
, 2005 This paper considers the construction of a biologically inspired front-end for computer vision based on an artificial retina pyramid with a self-organised pseudo-randomly tessellated receptive field tessellation.
Balasuriya, S., Siebert, J.P.
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A note concerning the relationship between the Adelson’s Argyle illusion and Cornsweet edges [PDF]
Psihologija, 2014 Adelson’s Argyle illusion and the Craik-O’Brien-Cornsweet illusion are two noteworthy brightness illusions. In the Argyle illusion two identical gray areas are perceived to have radically different brightness levels when they are surrounded by a
Flynn Oliver, Shapiro Arthur G.
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A spatial contrast retina with on-chip calibration for neuromorphic spike-based AER vision systems [PDF]
, 2007 We present a 32 32 pixels contrast retina microchip that provides its output as an address event representation (AER) stream. Spatial contrast is computed as the ratio between pixel photocurrent and a local average between neighboring pixels obtained ...
Costas Santos, Jesús +3 more
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Achromatic Cues Are Important for Flower Visibility to Hawkmoths and Other Insects
Frontiers in Ecology and Evolution, 2022 Studies on animal colour vision typically focus on the chromatic aspect of colour, which is related to the spectral distribution, and disregard the achromatic aspect, which is related to the intensity (“brightness”) of a stimulus.
Casper J. van der Kooi, Almut Kelber
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Psicologia: Reflexão e Crítica, 2016 The aim of this study was to measure visual contrast sensitivity (CS) of luminance using vertical sinusoidal gratings with spatial frequencies of 0.6, 2.5, 5.0 and 20.0 cycles per degree of visual angle in chronic alcoholics in abstinence period.
Éllen Dias Nicácio da Cruz +4 more
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Trail Making Test performance contributes to subjective judgment of visual efficiency in older adults [PDF]
, 2015 Introduction: The determinant factors that influence self-reported quality of vision have yet to be fully elucidated. This study evaluated a range of contextual information, established psychophysical tests, and in particular, a series of cognitive tests
Abdulrab +40 more
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Harmonizing motion and contrast vision for robust looming detection
Array, 2023 This paper presents a novel neural model of insect’s visual perception paradigm to address a challenging problem on detection of looming motion, particularly in extremely low-contrast, and highly variable natural scenes.
Qinbing Fu, Zhiqiang Li, Jigen Peng
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