Data processing apparatus and method and storage medium
US6449378B1 · kind B1 · utility
26Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1999 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Jan 22, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0052
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
It is an object of this invention to reliably pad electronic water-mark information even in a moving image constituted by a plurality of frames whose contents hardly change and easily pad electronic water-mark information even in a general moving image obtained by photographing an object at one angle. In order to achieve this object, there is provided an electronic water-mark information padding scheme of padding electronic water-mark information in only intraframe-encoded data without padding any electronic water-mark information in interframe-encoded data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.