Patent · US Active

Registration and comparison of three dimensional objects in facial imaging

US8605989B2 · kind B2 · utility

13Cited by

6References

27Claims

0Family size

Assignee

Cognitech, Inc. · US

Inventors

Leonid I. Rudin · San Marino, US
Jose L. Lisani · Pasadena, US
Jean-Michel Morel · Paris, FR

Key dates

Filing date	Feb 13, 2009
Grant date	Dec 10, 2013
Priority date	—
Expiry date	Nov 13, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06V20/653
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Information of different scans of physical objects may require comparison, for example to determine if the scans are of the same object or if an object has changed, or better information for a three dimensional model may be desired. Different scans of physical objects may be compared by determining lines or planes tangent to a surface at a discrete number of points, registering three dimensional information provided by the scans using the tangent lines or planes, and determining a measure of discrepancy between the surfaces. Three dimensional information of different scans of the same object may also be merged after determining lines or planes tangent to a surface at a discrete number of points and performing registration and merging.

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