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Optical methods for remotely measuring objects

  • US 20040008259A1
  • Filed: 04/10/2003
  • Published: 01/15/2004
  • Est. Priority Date: 04/10/2002
  • Status: Active Grant
First Claim
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1. A method for remotely measuring the geometrical attributes of an object of known shape, the method comprising the steps of:

  • illuminating the object with an optical pattern of known shape using a light source of known wavelength; and

    optically obtaining an image to observe the reflected pattern on said object from said light source, using a camera whose location and orientation is known with respect to the light source; and

    executing a computer-implemented process to locate a plurality of key points in the image obtained by the camera; and

    executing another computer-implemented process to obtain a plurality of geometrical attributes of said object using the plurality of key points.

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