Distance detecting apparatus for a vehicle

  • US 5,214,408 A
  • Filed: 10/24/1991
  • Issued: 05/25/1993
  • Est. Priority Date: 10/25/1990
  • Status: Expired due to Term
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First Claim
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1. A vehicle mounted distance detecting apparatus, comprising:

  • a) a pair of laterally spaced first and second image sensors (3,4;

    3'"'"'4'"'"') including a pair of optical systems (1,

         2) for optically sensing a plurality of objects;

    b) a first memory for storing the images of said objects sensed by said first image sensor as first image signals;

    c) a second memory for storing the images of said objects sensed by said second image sensor as second image signals;

    d) a display (11) with a screen for displaying the images of said objects as sensed by said image sensors on the screen;

    e) window defining means (12) for defining a plurality of windows (15-19) at specific locations on the screen of said display;

    f) distance calculating means for electrically detecting deviations between the images of said objects within the respective windows as sensed by said image sensors and individually calculating the distance to each object in each window based on the calculated deviations; and

    g) obstacle discriminating means for discriminating, among the objects around the vehicle as sensed by said image sensors, obstacles to the travel of the vehicle on the basis of the positions of the windows on the screen and the calculated distances to the objects in said respective windows.

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