System and method for digital watermarking
US10157437B2 · kind B2 · utility
5Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2014 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Aug 27, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0052
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Some implementations may include a method for watermarking an identification document, the method including: modulating a spatial luminance pattern associated with a first digital watermark to encode a first portion of personally identifiable information; modulating a spatial chrominance distribution associated with a second digital watermark to encode a second portion of the personally identifiable information; and applying the first digital watermark and the second digital watermark to the identification document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.