Stereoscopy - A Visual System

Abstract

Stereopsis is a process in visual perception leading to the perception of the depth or distance of objects [1]. With the technological advance, two-dimensional images of the three-dimensional world became no longer sufficient. The visual system and its remarkable power to give an immediate perception of depth by reconstructing a three dimensional world from a two dimensional workion of that world, is what the science is trying to develop. The eye is the center of the visual system, it is a complex biological device, which takes visible light and converts it into a stream of information (color, shape), that can be transmitted via nerves to the brain [1]. The information captured by the eye is a 2D reconstruction from what is in its sight. But with only one eye, important information is missing; the presence of two slightly different positions of the eyes in the visual system is to acquire the needed information to make it possible for the brain to recover the depth from the information stream captured by each eye.