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A more complex stereoscope uses a pair of horizontal periscope-like devices, allowing the use of larger images that can present more detailed information in a wider field of view. The stereoscope is essentially an instrument in which two photographs of the same object, taken from slightly different angles, are simultaneously presented, one to ...
Stereoscopy creates the impression of three-dimensional depth from a pair of two-dimensional images. [5] Human vision, including the perception of depth, is a complex process, which only begins with the acquisition of visual information taken in through the eyes; much processing ensues within the brain, as it strives to make sense of the raw information.
Between 1915 and 1921 Keystone View Company purchased the negatives of nearly all of its competitors; they also continued to have staff photographers travel the world, so that by 1935 Keystone had approximately two million stereoscopic negatives. [8] Keystone View Company produced stereographic sets up through the mid-twentieth century, and had ...
Tru-Vue, a subsidiary of Rock Island Bridge and Iron Works, was a manufacturer of stereoscopic filmstrips and corresponding stereoscope viewers, based in Rock Island, Illinois, from 1932 to 1951 and in Beaverton, Oregon, from 1951 until the late 1960s. [1]
A 3D or 3-D (three-dimensional) film or S3D (stereoscopic 3D) film [5] is a motion picture that enhances the depth cues seen by the viewer. The most common approach to the production of 3D films is derived from stereoscopic photography.
In Victorian times it was the prism stereoscope (allowing stereo photographs to be viewed), while in the 1920s it was red-green glasses (allowing stereo movies to be viewed). In 1939 the concept of the prism stereoscope was reworked into the technologically more complex View-Master, which remains in production today.
A View-Master Model E of the 1950s. The practice of viewing stereoscopic film-based transparencies through a small magnifying viewer dates to at least as early as 1931, when Tru-Vue began to market black-and-white 35 mm filmstrips that were fed through a handheld viewer made of Bakelite.
Computer stereo vision is the extraction of 3D information from digital images, such as those obtained by a CCD camera.By comparing information about a scene from two vantage points, 3D information can be extracted by examining the relative positions of objects in the two panels.