1. A stereoscopic vision apparatus for extracting, from the entire image of a three-dimensional scene, at least one partial image with respect to a predetermined reference distance, and recognizing, on the basis of two-dimensional image processing, whether or not an object actually exists apart from said apparatus by the reference distance in a certain direction, thereby automatically performing a scene analysis, said apparatus comprising: (a) image input means for simultaneously sensing an incoming image light of a three-dimensional objective body from different points of view and for producing first image signals representing a plurality of two-dimensional body images for the same objective body; (b) first operating means for receiving distance value data designating the reference distance and for calculating the parallax for the reference distance of said plurality of body images to produce parallax value data; (c) parallax compensating circuit means, connected to said image input means and said first operating means, for compensating at least one of the first image signals so as to effect a geometric transformation of said body images in accordance with said parallax value data, and for generating second image signals representing a geometrically compensated body image corresponding to said reference distance; and (d) distance image generating means, connected to said parallax compensating circuit means, for generating a distance image of the three-dimensional objective body corresponding to said reference distance, each pixel of the distance image indicating information about the three-dimensional objective body portion which is apart from said image input means by substantially said reference distance, and said distance image generating means including, second operating means, connected to said parallax compensating circuit means, for calculating correlation values, from at least said second image signals, among mutually corresponding image portions of the body images, and for producing a sequence of said correlation values as third image signals; and third operating means, connected to said second operating means, for extracting, from said third image signals, signals which satisfy a predetermined condition about said correlation values, thereby obtaining said distance image of said three-dimensional objective body.