Method for recording multiple three-dimensional images of a dental object

US9456754B2 · kind B2 · utility

Assignee

• SIRONA Dental Systems GmbH · DE

Inventors

• Gerrit Kocherscheidt · Heidelberg, DE
• Anders Adamson · Darmstadt, DE
• Björn Popilka · Hemsbach, DE
• Frank Thiel · Oberramstadt, DE

Key dates

• Filing date: Aug 1, 2012
• Grant date: Oct 4, 2016
• Expiry date: Feb 13, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30036
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method and apparatus for forming an overall image of an object from a plurality of images. Each image includes three-dimensional data and color data and is segmented based on the color data to identify a first region with hard tissue and a second region with soft tissue. For each image, first and second weighting factors may be assigned. Points in the second region with a larger distance to a corresponding proximate part of the first region may have a smaller second weighting factor than a point with a smaller distance to a corresponding proximate part of the first region. The second weighting factor may be variable, with its value dependent upon a value of a first area section corresponding to the first region.