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Related Concept Videos

Gestalt Principles of Perception01:21

Gestalt Principles of Perception

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Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
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Factors Affecting Perception01:25

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Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
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Perceptual Constancy01:12

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Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
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Perception01:28

Perception

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Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
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Vision01:24

Vision

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Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
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Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

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Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
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Visualizing Visual Adaptation
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Image quality and perception: introduction.

Marius Pedersen, Seyed Ali Amirshahi, Jean Baptiste Thomas

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |October 10, 2022
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    Summary
    This summary is machine-generated.

    This feature issue explores image quality and perception, covering subjective and objective assessments, image enhancement, and color imaging. It advances the understanding of visual data through diverse research on contrast discrimination and quality evaluation.

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    Area of Science:

    • Optics and Vision Science
    • Image Processing
    • Human-Computer Interaction

    Background:

    • Understanding image and video quality is crucial for various applications.
    • Subjective and objective quality assessment methods are essential for evaluating visual data.
    • Image enhancement techniques aim to improve the visual fidelity of images.

    Purpose of the Study:

    • To present a collection of research on image quality and perception.
    • To cover diverse topics including contrast discrimination, color imaging, and quality assessment.
    • To contribute to the advancement of the field of image quality and perception.

    Main Methods:

    • The feature issue compiles papers covering various aspects of image quality.
    • Methods discussed include subjective and objective quality assessment techniques.
    • Research encompasses areas like contrast discrimination and color imaging analysis.

    Main Results:

    • The papers highlight different critical aspects of image quality and perception.
    • Findings contribute to a deeper understanding of visual data evaluation.
    • The issue showcases advancements in image and video quality research.

    Conclusions:

    • The collected research advances the field of image quality and perception.
    • Diverse studies offer comprehensive insights into visual data assessment.
    • This feature issue serves as a valuable resource for researchers in the field.