Supplemental scene reference surface devices for three-dimensional mapping

  • US 9,222,768 B2
  • Filed: 06/25/2008
  • Issued: 12/29/2015
  • Est. Priority Date: 06/26/2007
  • Status: Active Grant
First Claim
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1. A reference surface device for use with imaging of an intra-oral scene, the reference surface device comprising:

  • a) at least one sector including a length defining a first end of said at least one sector, a plurality of faces, each face of said plurality of faces at an angular orientation with respect to each adjacent face, the plurality of faces extending along the length of the at least one sector, the at least one sector including oppositely disposed edges which extend from the edges of the outermost faces to a second end of said at least one sector, and wherein said plurality of faces is configured to provide at least one fully intraoral reference surface operative to provide an identifiable positional characteristic; and

    ,b) a mounting element in communication with said second end of said at least one sector, wherein said identifiable positional characteristic is at a predetermined three-dimensional spatial position from a mounting point adapted to be attached to a feature having a substantially fixed location relative to said intra-oral scene, said intra-oral scene being configured to provide information for determining the three-dimensional spatial position and orientation of a face on said reference surface device relative to the intra-oral scene.

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