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Vision system may refer to: Visual system , the neurobiological circuitry and processing that enable living beings to see Machine vision , a computer-based system where software performs tasks assimilable to "seeing", usually aimed to industrial quality assurance, part selection, defect detection etc.
Stereoscopic vision is used in special cases involving unique features present in both views of a pair of cameras. [27] Other 3D methods used for machine vision are time of flight and grid based. [27] [25] One method is grid array based systems using pseudorandom structured light system as employed by the Microsoft Kinect system circa 2012. [28 ...
Computer vision is an interdisciplinary field that deals with how computers can be made to gain high-level understanding from digital images or videos.From the perspective of engineering, it seeks to automate tasks that the human visual system can do.
In the expression 6/x vision, the numerator (6) is the distance in metres between the subject and the chart and the denominator (x) the distance at which a person with 6/6 acuity would discern the same optotype. Thus, 6/12 means that a person with 6/6 vision would discern the same optotype from 12 metres away (i.e. at twice the distance).
Vision of humans and other organisms depends on several organs such as the lens of the eye, and any vision correcting devices, which use optics to focus the image. The eyes of many animals contains a lens that focuses the light of its surroundings onto the retina of the eye. This lens is essential to producing clear images within the eye.
The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in linguistics, psychology, cognitive science, neuroscience, and molecular biology, collectively referred to as vision science.
A night vision device usually consists of an image intensifier tube, a protective housing, and an optional mounting system. Many NVDs also include a protective sacrificial lens, mounted over the front/ objective lens to prevent damage by environmental hazards, [ 1 ] while some incorporate telescopic lenses .
[12] [13] It is an area of 4.17 steradians or 13700 square degrees for binocular vision. [14] When viewed at large angles from the side, the iris and pupil may still be visible by the viewer, indicating the person has peripheral vision possible at that angle. [15] [16] [17]