Stereoscopy - Stereoscopy Stereoscopy, stereoscopic imaging or 3-D (three-dimensional) imaging is a technique to create the illusion of depth in a photograph, movie, or other two-dimensional image, by presenting both eyes two slightly different images. Stereoscopy is used in photogrammetry and also for fun. The basic technique consists of creating a 3-D illusion starting from a pair of 2-D images. To create depth perception in the brain it is necessary 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. Table of contents showTocToggle("show","hide") 1 Techniques 1.1 Side-by-side 1.2 LCD shutter glasses 1.3 Polarized glasses 1.4 Two-color anaglyph 2 See also 3.
Dimension - theories predict that the space we live in has in fact many more dimensions (frequently 10, 11 or 26) but that the universe measured along these additional dimensions is subatomic in size. See string theory. Time is frequently referred to as the "fourth dimension"; time is not the fourth dimension of space, but rather of spacetime. This does not have a Euclidean geometry, so temporal directions are not entirely equivalent to spatial dimensions. A tesseract is an example of a four-dimensional object. For 3-D images see Stereoscopy. For 3-D films and video see 3-D. Mathematical dimensions In mathematics, we find that no definition of dimension adequately captures the concept in all situations where we would like to make use of it. Consequently, mathematicians have devised numerous definitions of dimension for different.
3-D - and with identical technical characteristics. When viewed in such a way that each eye sees only the image taken on the same side as itself, the viewer's visual cortex will interpret the pair of images as a single three-dimensional image. See stereoscopy for a more detailed description. 3-D motion pictures date back to 1915, when the short film Jim, the Penman was shown in New York. Experimental or novelty 3-D films continued to be produced sporadically through the early days of movies. The 3-D boom began in 1952 with the release of the exploitation film Bwana Devil followed the next year by the first full-color, stereophonic 3-D movie, House of Wax. The theatrical 3-D craze would continue throughout the 1950s. In later years sporadic attempts to revive the form were made.
Binocular vision - Binocular vision is a feature common amongst many hunting animals, but also amongst primates which rely upon it when navigating complex three-dimensional environments. Binocular vision comes at the expense of a wider field of view, meaning that an animal must rely on other senses to see what is behind it or on the periphery. For many prey species, like cows or horses, the wider field of view given by side-facing eyes and monocular vision is a better adaptation, since it reduces the chance that a predator could sneak up on them. See also: stereoscopy, vision.
Stereogram - of depth on 3D objects and scenes. Stereograms had been created for years before being re-popularized by the creation of random-dot stereograms on computers. Instead of the traditional two photographs of an object or scene taken from a slightly different angle (see stereoscopy), in random-dot stereograms the image is hidden until the viewer focuses the eyes correctly. Salvador Dali created some impressive stereograms in his exploration in a variety of optical illusions..
Photography - photograph and prevent the color from fading. The first permanent color photo was taken in 1861 by the physicist James Clerk Maxwell. The first color film, Autochrome, did not reach the market until 1907 and was based on dyed dots of potato starch. The first modern color film, Kodachrome, was introduced in 1935 based on three colored emulsions. Most modern color films, except Kodachrome, are based on technology developed for Agfacolor in 1936. Instant color film was introduced by Polaroid in 1963. Digital photography Traditional photography was a considerable burden for photographers working at remote locations (such as press correspondents) without access to processing facilities. With increased competition from television, there was pressure to deliver their images to newspapers ever faster. Photo-journalists at remote locations would carry a miniature photo lab.
List of optical topics - -- J Jones calculus -- K Kerr cell -- knife-edge effect -- L laser -- laser construction -- laser applications -- lens -- lens coating -- light -- light bulb -- light-emitting diode -- light meter -- liquid-crystal display -- list of indices of refraction -- M material science - optical properties -- metamerism -- Michelson-Morley experiment -- micro-optics -- microphotonics -- microscope -- Mie scattering -- mirage -- mirror -- modelocking -- modern optics -- monocular -- N Newton's rings -- non-imaging optics -- nonlinear optics -- normal lens -- numerical aperture -- O optical bench -- optical communication systems -- optical computer -- optical data storage (science of) -- optical depth -- optical engineering -- optical fiber -- optical illusion -- optical instruments -- optical lens design -- optical.
