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Automated video imagery database generation using photogrammetry

  • US 5,259,037 A
  • Filed: 02/07/1991
  • Issued: 11/02/1993
  • Est. Priority Date: 02/07/1991
  • Status: Expired due to Term
First Claim
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1. A method for generating a downlooking three dimensional photographic database from oblique sequential imagery comprising the following steps:

  • acquiring oblique forward looking sequential imagery data with respect to a vehicle moving over a terrain of interest for a plurality of frames;

    calculating the position and attitude of the vehicle in x, y, z and roll, pitch and yaw at the time each frame was made;

    determining corresponding pixels in adjacent frames;

    calculating range to corresponding pixels in each frame;

    using range information for corresponding pixels and photogrametric calculations to generate elevation data for each pixel in each frame; and

    determining radiometric data for each pixel in each frame using only radiometric data extracted from the lower portion of each frame; and

    storing the radiometric data and elevation data for each pixel to provide a three dimensional database suitable for use in an image generation system.

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