Stereoscopy
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| - | '''Stereoscopy''', '''stereoscopic imaging''' or '''3-D (three-dimensional) imaging''' is any technique capable of recording three-dimensional visual information or creating the [[stereopsis|illusion of depth]] in an image. The illusion of depth in a [[photograph]], [[film|movie]], or other two-dimensional image is created by presenting a slightly different image to each [[eye]]. Many [[3D display]]s use this method to convey images. It was first invented by [[Sir Charles Wheatstone]] in 1838 . Stereoscopy is used in [[photogrammetry]] and also for entertainment through the production of [[stereogram]]s. Stereoscopy is useful in viewing images rendered from large multi-[[dimension]]al data sets such as are produced by experimental data. Modern industrial three dimensional photography may use [[3D scanner]]s to detect and record 3 dimensional information. The 3 dimensional depth information can be reconstructed from two images using a computer by corresponding the pixels in the left and right images. Solving the [[Correspondence problem]] in the field of [[Computer Vision]] aims to create meaningful depth information from two images. | ||
| - | Traditional stereoscopic photography consists of creating a 3-D illusion starting from a pair of 2-D images. The easiest way to create [[depth perception]] in the brain is to provide to the eyes of the viewer two different images, representing two perspectives of the same object, with a minor deviation similar to the perspectives that both eyes naturally receive in [[binocular vision]]. | + | '''Stereoscopy''' (also called '''stereoscopics''', or '''stereo imaging''') is a technique for creating or enhancing the [[depth perception|illusion of depth]] in an image by means of [[stereopsis]] for [[binocular vision]] Any stereoscopic image is called a '''stereogram'''. Originally, stereogram referred to a pair of stereo images which could be viewed using a [[stereoscope]]. |
| - | If eyestrain and distortion are to be avoided, each of the two 2-D images preferably should be presented to each eye of the viewer so that any object at infinite distance seen by the viewer should be perceived by that eye while it is oriented straight ahead, the viewer's eyes being neither crossed nor diverging. When the picture contains no object at infinite distance, such as a horizon or a cloud, the pictures should be spaced correspondingly closer together. | + | |
| - | == See also == | + | Most stereoscopic methods present two offset images separately to the left and right eye of the viewer. These [[two-dimensional]] images are then combined in the brain to give the perception of [[Three-dimensional space|3D]] depth. This technique is distinguished from [[3d display#3D displays|3D displays]] that display an image in [[Three-dimensional space|three full dimensions]], allowing the observer to increase information about the 3-dimensional objects being displayed by head and [[Accommodation (eye)|eye movements]]. |
| - | * [[Binocular vision]] | + | |
| - | * [[Jules Duboscq]] | + | |
| - | * [[Orthoptics]] | + | |
| - | * [[Dolby 3D]] | + | |
| - | * [[RealD Cinema]] | + | |
| - | * [[3ality Digital]] | + | |
| - | * [[Stereopsis]] | + | |
| - | * [[Integral imaging]] | + | |
| - | * [[Vision therapy]] | + | |
| - | * [[Auto 3D]] | + | |
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Stereoscopy (also called stereoscopics, or stereo imaging) is a technique for creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision Any stereoscopic image is called a stereogram. Originally, stereogram referred to a pair of stereo images which could be viewed using a stereoscope.
Most stereoscopic methods present two offset images separately to the left and right eye of the viewer. These two-dimensional images are then combined in the brain to give the perception of 3D depth. This technique is distinguished from 3D displays that display an image in three full dimensions, allowing the observer to increase information about the 3-dimensional objects being displayed by head and eye movements.
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Stereoscopy" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
