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AUTOMATED STEREO-PHOTOGRAMMETRIC INSTRUMENT

  • US 3,783,294 A
  • Filed: 05/19/1972
  • Issued: 01/01/1974
  • Est. Priority Date: 05/19/1972
  • Status: Expired due to Term
First Claim
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1. In a photogrammetric system adapted to observe conjugate areas for the purpose of measuring X-parallax in a pair of photographs taken from separate spaced positions, the combination comprising:

  • A. means to scan each of said photographs along an epipolar ray in which X-parallax is present and in which Y-parallax and image rotation are substantially absent, to produce first and second video signals representative of the scanned path on said photographs, and B. means to apply said first and second signals to a correlator to produce an output value reflecting the value of X-parallax.

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