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Optical measurement of teeth

  • US 5,386,292 A
  • Filed: 04/27/1993
  • Issued: 01/31/1995
  • Est. Priority Date: 05/05/1992
  • Status: Expired due to Term
First Claim
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1. A method of optical measurement of teeth, comprising a first step of optically measuring a surface of a tooth to determine measured coordinate values of a plurality of measured points on said tooth surface, and a second step of performing error correction upon at least some of said measured co-ordinate values to determine corrected co-ordinate values of said tooth surface wherein a correction value used for the error correction in said second step is determined using a value which depends upon the position of the point to be corrected and the position of a projection system used in said first step.

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