Patents Assigned to Astra Tech Inc.
  • Patent number: 7551760
    Abstract: A three-dimensional-based modeling method and system designed for dentistry and related medical (and appropriate non-medical) applications. Data capture means produces a point cloud representing the three-dimensional surface of an object (e.g., dental arch). Three-dimensional recognition objects are provided, particularly within those areas in the image field that have low image definition, and particularly in such of these areas that appear in overlapping portions of at least two images, to provide the three-dimensional image processing software with position, angulation, and orientation information sufficient to enable highly accurate combining (or “stitching”) of adjoining and overlapping images. Alignment, and creation of aligned related objects or models thereof, such as maxillar and mandibular arches, is facilitated.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: June 23, 2009
    Assignee: Astra Tech Inc.
    Inventors: Ronald S. Scharlack, Bethany F. Grant, Alexander Yarmarkovich
  • Patent number: 7362890
    Abstract: A three-dimensional-based modeling method and system designed for dentistry and related medical (and appropriate non-medical) applications. Data capture means produces a point cloud representing the three-dimensional surface of an object (e.g., dental arch). Three-dimensional recognition objects are provided, particularly within those areas in the image field that have low image definition, and particularly in such of these areas that appear in overlapping portions of at least two images, to provide the three-dimensional image processing software with position, angulation, and orientation information sufficient to enable highly accurate combining (or “stitching”) of adjoining and overlapping images. Alignment, and creation of aligned related objects or models thereof, such as maxillar and mandibular arches, is facilitated.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: April 22, 2008
    Assignee: Astra Tech Inc.
    Inventors: Ronald S. Scharlack, Bethany Grant, Alexander Yarmarkovich