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The top and bottom images produce a dent or projection depending on whether viewed with cross- () or wall- () eyed vergence. An autostereogram is a two-dimensional (2D) image that can create the optical illusion of a three-dimensional (3D) scene. Autostereograms use only one image to accomplish the effect while normal stereograms require two.
This can be seen when the eyes are closed and looking at the back of the eyelids. In a bright room, a dark red can be seen, owing to a small amount of light penetrating the eyelids and taking on the color of the blood it has passed through. In a dark room, blackness can be seen or the object can be more colourful.
1980–1991. Maus,[a]often published as Maus: A Survivor's Tale, is a graphic novelby American cartoonist Art Spiegelman, serialized from 1980 to 1991. It depicts Spiegelman interviewing his father about his experiences as a Polish Jewand Holocaustsurvivor. The work employs postmoderntechniques, and represents Jews as mice and other Germans and ...
Fundus photography involves photographing the rear of an eye, also known as the fundus. Specialized fundus cameras consisting of an intricate microscope attached to a flash enabled camera are used in fundus photography. The main structures that can be visualized on a fundus photo are the central and peripheral retina, optic disc and macula.
192241. Make Way for Ducklings is an American children's picture book written and illustrated by Robert McCloskey. First published in 1941 by the Viking Press, the book centers on a pair of mallards who raise their brood of ducklings on an island in the lagoon in the Boston Public Garden. It won the 1942 Caldecott Medal for McCloskey's ...
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Stereoscopy is the production of the illusion of depth in a photograph, movie, or other two-dimensional image by the presentation of a slightly different image to each eye, which adds the first of these cues ( stereopsis ). The two images are then combined in the brain to give the perception of depth.
Eye tracking device is a tool created to help measure eye and head movements. The first devices for tracking eye movement took two main forms: those that relied on a mechanical connection between participant and recording instrument, and those in which light or some other form of electromagnetic energy was directed at the participant's eyes and its reflection measured and recorded.