Stereoscopy, stereoscopic imaging or 3-D (three-dimensional) imaging is any technique capable of recording three-dimensional visual information or creating the
illusion of depth in an image. The illusion of depth in a
photograph,
movie, or other two-dimensional image is created by presenting a slightly different image to each
eye. Many
3D displays 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
stereograms. Stereoscopy is useful in viewing images rendered from large multi-
dimensional data sets such as are produced by experimental data. Modern industrial three dimensional photography may use
3D scanners to detect and record 3 dimensional information. The three-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.
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