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Digitizer using intensity gradient to image features of three-dimensional objects

DC
  • US 6,639,684 B1
  • Filed: 09/13/2000
  • Issued: 10/28/2003
  • Est. Priority Date: 09/13/2000
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • varying illumination within a focal zone over time and location to create a spatially distributed gradient of light intensity;

    projecting the gradient onto an object;

    capturing a measurement for a light intensity at a point on the object, which relates to location of the point along the gradient;

    deriving dimensional data for the point based on the measurement; and

    assembling the dimensional data along with dimensional data similarly captured for a set of other points on the object into a three-dimensional model of at least a portion of the object.

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