Variable bit rate video CODEC using adaptive tracking for video conferencing
US8107525B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2003 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Jul 21, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/179
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to a video communication system capable of providing adaptive compression of video image data. In particular, data regarding the range of possible motions and the respective probabilities of such motion within a scene are collected, and a compression algorithm appropriate to motions having high associated probabilities selected. In response to a change in the motions and associated probabilities within a scene, a new compression algorithm can be selected. The bit rate of data transmitted by a system in accordance with an embodiment of the present invention will therefore vary, depending on the content of an imaged scene and based on the compression algorithm applied in order to compress image data while maintaining appropriate detail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.