Stereoscopic 3D: Difference between revisions
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With the autostereoscopic display technology (also referred to as parallax barrier), there is no requirement for the users to wear glasses to achieve a three-dimensional effect. The technology relies on an optical filter which divides the images and enables it to direct light to each eye. This allows the viewer to perceive a coherent left and right image. The Nintendo 3DS uses this type of display technology <ref name=”9”></ref>. | With the autostereoscopic display technology (also referred to as parallax barrier), there is no requirement for the users to wear glasses to achieve a three-dimensional effect. The technology relies on an optical filter which divides the images and enables it to direct light to each eye. This allows the viewer to perceive a coherent left and right image. The Nintendo 3DS uses this type of display technology <ref name=”9”></ref>. | ||
===Historical context=== | |||
Stereoscopic vision has evolved during millions of years. It is a common feature between humans and many animals, generally predators. In these, two parallel aligned eyes deliver different perspectives of the same scene. Stereoscopic vision is an important sense that is vital for the survival of the animals who possess it <ref name=”10”> Stereo3d. Basics/Quick-Info. Retrieved from http://www.stereo3d.com/3dhome.htm</ref>. | |||
Charles Wheatstone first developed the stereoscope in 1938. His research demonstrated that the brain processes the images from each eye into a single three-dimensional object. When two stereoscopic images where viewed side by side through a stereoscope, a sense of depth and immersion was created. The design principles of the stereoscope are still applied today in things like the Google Cardboard and low budget VR HMDs for mobile phones <ref name=”11”> Virtual Reality Society. History Of Virtual Reality. Retrieved from https://www.vrs.org.uk/virtual-reality/history.html</ref>. | |||
The popular View-Master stereoscope was patented in 1939, and was used for “virtual tourism”. In 1949 David Brewster suggested the use of lenses, giving rise to the lenticular stereoscope. The cinematographer Morton Heilig developed the Sensorama in the mid 1950s. It was an arcade-style theatre cabinet that stimulated all the senses. It had stereoscopic 3D display, stereo speakers, fans, smell generators, and a vibrating chair with the objective of immersing the viewer in the film. Heilig created six short films for the Sensorama. He was also responsible for the Telesphere Mask, that was patented in 1960. It was the first example of a HMD - although without motion tracking and for use with non-interactive film medium. This headset provided S3D and wide vision with stereo sound <ref name=”11”></ref>. | |||
==References== | ==References== | ||