Results 11 to 20 of about 1,309,431 (344)
Invariance of visual operations at the level of receptive fields [PDF]
, 2012 Receptive field profiles registered by cell recordings have shown that mammalian vision has developed receptive fields tuned to different sizes and orientations in the image domain as well as to different image velocities in space-time.
Lindeberg, Tony
core +7 more sources
Are v1 simple cells optimized for visual occlusions? : A comparative study [PDF]
, 2013 : Simple cells in primary visual cortex were famously found to respond to low-level image components such as edges. Sparse coding and independent component analysis (ICA) emerged as the standard computational models for simple cell coding because they ...
Bornschein, Jörg +2 more
core +3 more sources
Information Optimization in Coupled Audio-Visual Cortical Maps [PDF]
, 2002 Barn owls hunt in the dark by using cues from both sight and sound to locate their prey. This task is facilitated by topographic maps of the external space formed by neurons (e.g., in the optic tectum) that respond to visual or aural signals from a ...
A. Zee +10 more
core +3 more sources
Visuomotor Transformation in the Fly Gaze Stabilization System [PDF]
, 2008 For sensory signals to control an animal's behavior, they must first be transformed into a format appropriate for use by its motor systems. This fundamental problem is faced by all animals, including humans.
Holger G Krapp +2 more
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Lightness constancy: ratio invariance and luminance profile [PDF]
, 2009 The term simultaneous lightness constancy describes the capacity of the visual system to perceive equal reflecting surfaces as having the same lightness despite lying in different illumination fields.
Agostini, Tiziano +2 more
core +1 more source
Gaze-contingent flicker pupil perimetry detects scotomas in patients with cerebral visual impairments or glaucoma [PDF]
, 2018 The pupillary light reflex is weaker for stimuli presented inside as compared to outside absolute scotomas. Pupillograph perimetry could thus be an objective measure of impaired visual processing.
Bergsma, Douwe P +6 more
core +3 more sources
Attention modulates spatial priority maps in the human occipital, parietal and frontal cortices. [PDF]
, 2013 Computational theories propose that attention modulates the topographical landscape of spatial 'priority' maps in regions of the visual cortex so that the location of an important object is associated with higher activation levels.
Serences, John T, Sprague, Thomas C
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The Computational Magic of the Ventral Stream: Towards a Theory [PDF]
, 2011 I conjecture that the sample complexity of object recognition is mostly due to geometric image transformations and that a main goal of the ventral stream – V1, V2, V4 and IT – is to learn-and-discount image transformations.
Tomaso A. Poggio
core +2 more sources
Journal of the Formosan Medical Association, 2008 Background/Purpose: Assessment of the peripapillary retinal nerve fiber layer (RNFL) is essential for neuroretinal diseases, especially for early prediction of glaucomatous damage. The purpose of this study wasto measure RNFL thickness by Stratus optical
Pai-Huei Peng, Huey-Shyan Lin
doaj +1 more source
CHANGES IN THE TREATMENT PLANS OF GLAUCOMA PATIENTS IN A REAL-WORLD SITUATION
Khyber Medical University Journal, 2022 OBJECTIVE: To determine the changes in glaucoma prescriptions during a single visit in real-world situation at Al-Shifa Trust Eye Hospital, Rawalpindi, Pakistan.
Muhammad Sadiq +4 more
doaj +1 more source