Patent · US Active

Method and device for optical scanning of three-dimensional objects by means of a dental 3D camera using a triangulation method

US8334894B2 · kind B2 · utility

14Cited by

12References

19Claims

0Family size

Assignee

SIRONA Dental Systems GmbH · DE

Inventors

Joachim Pfeiffer · Bensheim, DE
Konrad Klein · Dortmund, DE

Key dates

Filing date	Sep 21, 2009
Grant date	Dec 18, 2012
Priority date	—
Expiry date	May 24, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01B2210/52
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A dental 3D camera for optically scanning a three-dimensional object, and a method for operating a dental 3D camera. The camera operates in accordance with a triangulation procedure to acquire a plurality of images of the object. The method comprises forming at least one comparative signal based on at least two images of the object acquired by the camera while at least one pattern is projected on the object, and determining at least one camera shake index based on the at least one comparative signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.