Generating embed-image by dividing embed-information into blocks and generating an information pattern and positioning pattern
US8270033B2 · kind B2 · utility
1Cited by
7References
14Claims
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Key dates
| Filing date | Feb 20, 2008 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Sep 17, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0094
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
It is possible to provide an image processing device, an image processing method, and its program which generate a positioning pattern of an information pattern in accordance with block information. This eliminates the problem that a block number cannot be identified although an information block position can be identified, i.e., the problem that information for identifying an information block cannot be sufficiently extracted. If an information pattern is identified, the extracted information can be used effectively. Moreover, it is possible to enhance the information embedding efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.