Method and system for camera sensor fingerprinting
US8027468B2 · kind B2 · utility
17Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 2008 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | May 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/046
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Some embodiments of the application provides methods and systems for providing camera fingerprinting by receiving a video frame from a camera, generating a confidence map based on an image characteristic associated with the video frame, generating a signature based on a sensor imperfection in the camera, weighting the signature based on the confidence map for each frame and generating a key based on the weighted signature over the plurality of video frames received. Other methods and systems are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.