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Method and apparatus for determining location and orientation of objects

  • US 4,672,564 A
  • Filed: 11/15/1984
  • Issued: 06/09/1987
  • Est. Priority Date: 11/15/1984
  • Status: Expired due to Term
First Claim
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1. A method of determining spatial information about an object relative to a reference coordinate frame comprising:

  • providing at least three identifiable collinear target points which lie on a single line projection, and in which said target points are in fixed relationship to said object;

    obtaining image points on an image plane corresponding to said three collinear target points projected thereon;

    determining position coordinates of said image points on said image plane; and

    determining a direction vector in alignment with said collinear target points from said position coordinates of said image points.

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