Overheard: Word of the Day

May 2 2012   10:06AM GMT

Overheard talking about parallax and 3-D imaging

Margaret Rouse Margaret Rouse Profile: Margaret Rouse

quotes and quotations Human beings have binocular vision — each eye sees a different image, and the brain combines them into a single, unified picture. The brain uses the slight difference in angle between the two images, known as parallax, to help it perceive depth.” — Tracy V. Wilson

Today’s WhatIs.com Word of the Day is parallax — it describes the way an object’s position or direction seems to change depending on which eye you have open. In 3-D imaging, this phenomena is used to create the illusion of depth.

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