Video bit stream extension by differential information annotation
US7714909B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2004 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Oct 15, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/169
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for annotating video and audio media with supplementary content for post video processing. In one embodiment, the invention may include maintaining a current state of auxiliary information regarding a sequence of video frames, the sequence of video frames being encoded as a video bit stream having video frame data for each respective video frame of the sequence of video frames. It may further include comparing the current state of auxiliary information with auxiliary information regarding a current video frame of the sequence of video frames to determine differential information, and annotating the differential information to the video bit stream as an annotation to the video frame data for the current video frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.