Top Mobile Wallpapers Biography
source(google.com.pk)Between 1849 and 1850, David Brewster, a Scottish scientist, improved the Wheatstone stereoscope by using lenses instead of mirrors, thus reducing the size of the device. Brewster also discovered the "wallpaper effect". He noticed that staring at repeated patterns in wallpapers could trick the brain into matching pairs of them as coming from the same virtual object on a virtual plane behind the walls. This is the basis of wallpaper-style "autostereograms" (also known as single-image stereograms).
In 1959, Bela Julesz, a vision scientist, psychologist and MacArthur Fellow, invented the random dot stereogram while working at Bell Laboratories on recognizing camouflaged objects from aerial pictures taken by spy planes. At the time, many vision scientists still thought that depth perception occurred in the eye itself, whereas now it is known to be a complex neurological process. Julesz used a computer to create a stereo pair of random-dot images which, when viewed under a stereoscope, caused the brain to see 3D shapes. This proved that depth perception is a neurological process.
In 1979, Christopher Tyler of Smith-Kettlewell Institute, a student of Julesz and a visual psychophysicist, combined the theories behind single-image wallpaper stereograms and random-dot stereograms to create the first "random-dot autostereogram" (also known as single-image random-dot stereogram). This type of autostereogram allows a person to see 3D shapes from a single 2D image without the aid of optical equipment.
This is an example of a wallpaper with repeated horizontal patterns. Each pattern is repeated exactly every 140 pixels. The illusion of the pictures lying on a flat surface (a plane) further back is created by the brain. Non-repeating patterns such as arrows and words, on the other hand, appear on the plane where this text lies. Christopher Tyler of Smith-Kettlewell Institute, a student of Julesz and a visual psychophysicist, combined the theories behind single-image wallpaper stereograms and random-dot stereograms to create the first "random-dot autostereogram" (also known as single-image random-dot stereogram). This type of autostereogram allows a person to see 3D shapes from a single 2D image without the aid of optical equipment.
This is an example of a wallpaper with repeated horizontal patterns. Each pattern is repeated exactly every 140 pixels. The illusion of the pictures lying on a flat surface (a plane) further back is created by the brain. Non-repeating patterns such as arrows and words, on the other hand, appear on the plane where this text lies.
Stereopsis, or stereo vision, is the visual blending of two similar but not identical images into one, with resulting visual perception of solidity and depth. In the human brain, stereopsis results from complex mechanisms that form a three-dimensional impression by matching each point (or set of points) in one eye's view with the equivalent point (or set of points) in the other eye's view. Using binocular disparity, the brain derives the points' positions in the otherwise inscrutable z-axis.
Stereopsis, or stereo vision, is the visual blending of two similar but not identical images into one, with resulting visual perception of solidity and depth. In the human brain, stereopsis results from complex mechanisms that form a three-dimensional impression by matching each point (or set of points) in one eye's view with the equivalent point (or set of points) in the other eye's view. Using binocular disparity, the brain derives the points' positions in the otherwise inscrutable z-axis
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Top Mobile Wallpapers Mobile Wallpapers Hd 240x320 Love Free Download Animated Hd For Samsung Quotes Friendship Quotess Flowers
Top Mobile Wallpapers Mobile Wallpapers Hd 240x320 Love Free Download Animated Hd For Samsung Quotes Friendship Quotess Flowers
Top Mobile Wallpapers Mobile Wallpapers Hd 240x320 Love Free Download Animated Hd For Samsung Quotes Friendship Quotess Flowers
Top Mobile Wallpapers Mobile Wallpapers Hd 240x320 Love Free Download Animated Hd For Samsung Quotes Friendship Quotess Flowers
Top Mobile Wallpapers Mobile Wallpapers Hd 240x320 Love Free Download Animated Hd For Samsung Quotes Friendship Quotess Flowers
Top Mobile Wallpapers Mobile Wallpapers Hd 240x320 Love Free Download Animated Hd For Samsung Quotes Friendship Quotess Flowers
Top Mobile Wallpapers Mobile Wallpapers Hd 240x320 Love Free Download Animated Hd For Samsung Quotes Friendship Quotess Flowers
Top Mobile Wallpapers Mobile Wallpapers Hd 240x320 Love Free Download Animated Hd For Samsung Quotes Friendship Quotess Flowers
Top Mobile Wallpapers Mobile Wallpapers Hd 240x320 Love Free Download Animated Hd For Samsung Quotes Friendship Quotess Flowers
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