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
core +4 more sources
Neural Mechanisms for Drosophila Contrast Vision [PDF]
Neuron, 2015 Spatial contrast, the difference in adjacent luminance values, provides information about objects, textures, and motion and supports diverse visual behaviors. Contrast computation is therefore an essential element of visual processing. The underlying mechanisms, however, are poorly understood.
Bahl, A. +4 more
openaire +3 more sources
Simulating Visibility and Reading Performance in Low Vision
Frontiers in Neuroscience, 2021 PurposeLow vision reduces text visibility and causes difficulties in reading. A valid low-vision simulation could be used to evaluate the accessibility of digital text for readers with low vision.
Ying-Zi Xiong +4 more
doaj +1 more source
Vision Rehabilitation is Part of AMD Care
Vision, 2018 AMD does not just affect the retina. It severely affects people’s lives. Paying attention to this aspect will only become more important as the population ages and more otherwise healthy individuals become affected.
August Colenbrander
doaj +1 more source
Higher order color mechanisms : Evidence from noise-masking experiments in cone contrast space [PDF]
, 2013 This study addresses a fundamental question concerning the number of cortical, i.e., higher order mechanisms in color vision. The initial subcortical stages in color vision can be described by three cone mechanisms, S, M, L, and three pairs of second ...
Gegenfurtner, Karl R., Hansen, Thorsten
core +2 more sources
Temporal structure in spiking patterns of ganglion cells defines perceptual thresholds in rodents with subretinal prosthesis. [PDF]
, 2018 Subretinal prostheses are designed to restore sight in patients blinded by retinal degeneration using electrical stimulation of the inner retinal neurons.
Goetz, Georges +8 more
core +3 more sources
Background chromatic contrast preference in cases with age-related macular degeneration
Journal of Optometry, 2013 Objective: To identify background chromatic contrast preferred subjectively by patients with age-related macular degeneration (AMD). Methods: Prospective observational case series. Study subjects with AMD were recruited and compared to a control group of
Mahmoud Alizadeh-Ebadi +2 more
doaj +1 more source
The effect of serifs and stroke contrast on low vision reading
Acta Psychologica, 2023 Purpose: Patients with low vision are generally recommended to use the same fonts as individuals with normal vision. However, we are yet to fully understand whether stroke width and serifs (small ornamentations at stroke endings) can increase readability.
Katsumi Minakata +4 more
doaj +1 more source
Adaptive polarimetric image representation for contrast optimization of a polarized beacon through fog [PDF]
, 2015 We present a contrast-maximizing optimal linear representation of polarimetric images obtained from a snapshot polarimetric camera for enhanced vision of a polarized light source in obscured weather conditions (fog, haze, cloud) over long distances ...
Alouini, Mehdi +2 more
core +3 more sources
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
core +1 more source