Vehicle imaging system with stereo imaging

  • US 6,396,397 B1
  • Filed: 08/12/1999
  • Issued: 05/28/2002
  • Est. Priority Date: 02/26/1993
  • Status: Expired due to Fees
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First Claim
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1. A vehicular imaging system comprising:

  • at least one imaging array sensor mounted at a vehicle and directed outwardly from the vehicle, said at least one imaging array sensor sensing images of at least one object exterior of the vehicle, said at least one imaging array sensor including a first portion for receiving a first image of the at least one object and a second portion for receiving a second image of the at least one object, said first portion and second portion defining a separation distance;

    a first optic element positioned between said first portion and the at least one object and a second optic element positioned between said second portion and the at least one object, said first optic element having a first focal length and said second optic element having a second focal length;

    a control that is responsive to an output of said at least one imaging array sensor in order to capture an image of at least one object external to the vehicle and determine a distance between said at least one imaging array sensor and the at least one object external to the vehicle according to the following equation;

    D=Δ







    f1

    f2
    f1

    xD2
    -f2

    xD1
    ;

    embedded imagewhere D is said distance, Δ

    is said separation distance, f1 is said first focal length, f2 is said second focal length, xD1 is a directed distance from said first reference point to said first image and xD2 is a directed distance from said second reference point to said second image.

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