Patent · US Active

Method and apparatus for identifying an imaging device

US7787030B2 · kind B2 · utility

7Cited by

1References

17Claims

0Family size

Assignee

The Research Foundation of the State University of New York · US

Inventors

Jessica Fridrich · Vestal, US
Miroslav Goljan · Vestal, US
Jan Lukas · Mělník, CZ

Key dates

Filing date	Dec 16, 2005
Grant date	Aug 31, 2010
Priority date	—
Expiry date	Oct 28, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG06V20/90
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A new technique for identifying from images a camera, or other imaging device such as a scanner, is based on the device's reference noise pattern, a unique stochastic characteristic of all common digital imaging sensors, including CCD, CMOS (Foveon™ X3), and JFET. First, one determines from images the sensor's reference pattern noise, which uniquely identifies each sensor. To identify the sensor from a given image, the presence or absence of the reference pattern noise in the image under examination is established using a correlation detector or other means.

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