Laser attack blinds autonomous vehicles, deleting pedestrians and confusing cars
Self-driving cars, like the human drivers that preceded them, need to see what's around them to avoid obstacles and drive safely.
Oct 31, 2022
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Self-driving cars, like the human drivers that preceded them, need to see what's around them to avoid obstacles and drive safely.
Oct 31, 2022
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A research team led by Baylor University chemists has taken a groundbreaking step forward in eliminating the exclusion of individuals with blindness from chemistry education and experiences. In an article published today ...
Aug 18, 2022
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In recent years, more vehicles include partially autonomous driving features, such as blind spot detectors, automatic braking and lane sensing, which are said to increase safety. However, a recent study by researchers from ...
Jul 28, 2022
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Driving at night brings its own risks when compared to daylight driving, not least when heading into a blind bend on an unlit road. Moreover, conventional headlights always face forward and so as one steers into such a bend ...
Mar 17, 2022
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It's no secret, artificial intelligence (AI) is changing the customer service game.
Feb 23, 2022
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Two researchers with the Center for Digital Technology and Management, Technical University of Munich, have developed a haptic feedback sleeve and goggle system that allows blind people to partially "see" with the skin on ...
Online image descriptions—or "alt-text"—help people who are blind or have low vision easily access information by providing the context and detail needed to interact with websites meaningfully, securely and efficiently.
Dec 20, 2021
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Blind people, like sighted people, post on Instagram, swipe on Tinder, and text photos of their children to a group chat. They also use photos to learn about their visual surroundings.
Dec 2, 2021
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In the early days of the COVID-19 pandemic, the Centers for Disease Control and Prevention produced a simple chart to illustrate how measures like mask wearing and social distancing could "flatten the curve" and reduce the ...
Oct 12, 2021
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A small team of researchers at the University of California, Berkeley has developed a robot dog to help in ways similar to real guide dogs. They have written a paper describing their robot guide dog and have uploaded it to ...
Blindness is the condition of lacking visual perception due to physiological or neurological factors.
Various scales have been developed to describe the extent of vision loss and define blindness. Total blindness is the complete lack of form and visual light perception and is clinically recorded as NLP, an abbreviation for "no light perception." Blindness is frequently used to describe severe visual impairment with residual vision. Those described as having only light perception have no more sight than the ability to tell light from dark and the general direction of a light source.
In order to determine which people may need special assistance because of their visual disabilities, various governmental jurisdictions have formulated more complex definitions referred to as legal blindness. In North America and most of Europe, legal blindness is defined as visual acuity (vision) of 20/200 (6/60) or less in the better eye with best correction possible. This means that a legally blind individual would have to stand 20 feet (6.1 m) from an object to see it—with vision correction—with the same degree of clarity as a normally sighted person could from 200 feet (61 m). In many areas, people with average acuity who nonetheless have a visual field of less than 20 degrees (the norm being 180 degrees) are also classified as being legally blind. Approximately ten percent of those deemed legally blind, by any measure, have no vision. The rest have some vision, from light perception alone to relatively good acuity. Low vision is sometimes used to describe visual acuities from 20/70 to 20/200.
By the 10th Revision of the WHO International Statistical Classification of Diseases, Injuries and Causes of Death, low vision is defined as visual acuity of less than 6/18 (20/60), but equal to or better than 3/60 (20/400), or corresponding visual field loss to less than 20 degrees, in the better eye with best possible correction. Blindness is defined as visual acuity of less than 3/60 (20/400), or corresponding visual field loss to less than 10 degrees, in the better eye with best possible correction.
It should be noted that blind people with undamaged eyes may still register light non-visually for the purpose of circadian entrainment to the 24-hour light/dark cycle. Light signals for this purpose travel through the retinohypothalamic tract, so a damaged optic nerve beyond where the retinohypothalamic tract exits it is no hindrance.
This text uses material from Wikipedia, licensed under CC BY-SA