Patent · US Active

Three-dimensional modeling of the oral cavity by projecting a two-dimensional array of random patterns

US7330577B2 · kind B2 · utility

5Cited by

2References

6Claims

0Family size

Assignee

Densys Ltd · IL

Inventors

Maurice Moshe Ernst · Jerusalem, IL
Micha Geffen · Biane, IL
Uri Neta · Haifa, IL
Carmi Cohen · Tel Adashim, IL

Key dates

Filing date	Jan 12, 2005
Grant date	Feb 12, 2008
Priority date	—
Expiry date	Jul 21, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG01B11/25
WIPO fieldMeasurement
WIPO sectorInstruments

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.

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