Digital watermark detection utilizing host carrier information
US7574014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2006 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Mar 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/327
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention generally relates to digital watermarking and steganography. In one implementation, a method is provided including acts of receiving a media signal comprising a steganographic signal redundantly embedded therein; selecting a subset of the media signal for steganographic signal detection, wherein the subset of the media signal is selected based on at least one media signal characteristic associated with the subset; and detecting a steganographic signal hidden in the subset of the media signal. In another implementation, a digital watermark detector is providing including: electronic processing circuitry; memory; and executable instructions stored in memory for execution by said electronic processing circuitry. The instructions comprises instructions to: process a media signal comprising a digital watermark redundantly embedded therein; select a subset of the media signal for watermark detection, wherein the subset of the media signal is selected based on at least one media signal characteristic associated with the subset; and detect a digital watermark hidden in the subset of the media signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.