Abstract: A method for creating three-dimensional models of intra-oral scenes and features. The intra-oral scene is illuminated by a two-dimensional array of structured illumination points, with anti-aliasing achieved by using stored two-dimensional patterns of pixels for anti-aliasing. Using a single camera to form images reduces the amount of apparatus necessary to introduce into the patient's mouth. Three-dimensional models are obtained from the single image by triangulation with a stored image of the structured illumination onto a reference surface such as a plane. Alternative methods include the use of “bar-coded” one-dimensional patterns.
Type:
Grant
Filed:
October 31, 2007
Date of Patent:
May 25, 2010
Assignee:
Densys Ltd
Inventors:
Maurice Moshe Ernst, Micha Geffen, Carmi Cohen, Uri Neta
Abstract: A method for creating three-dimensional models of intra-oral scenes and features. The intra-oral scene is illuminated by a two-dimensional array of structured illumination points, with anti-aliasing achieved by using stored two-dimensional patterns of pixels for anti-aliasing. Using a single camera to form images reduces the amount of apparatus necessary to introduce into the patient's mouth. Three-dimensional models are obtained from the single image by triangulation with a stored image of the structured illumination onto a reference surface such as a plane. Alternative methods include the use of “bar-coded” one-dimensional patterns.
Type:
Grant
Filed:
January 12, 2005
Date of Patent:
February 12, 2008
Assignee:
Densys Ltd.
Inventors:
Maurice Moshe Ernst, Micha Geffen, Uri Neta, Carmi Cohen