Method and system for video conference
US7859561B2 · kind B2 · utility
2Cited by
1References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 8, 2006 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Oct 28, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/507
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques for compressing video stream in a video conference are disclosed. According to one aspect of the techniques, the method comprises obtaining a frame image sequence and selecting a reference frame image; determining whether an N-th frame image has acute movements relative to the reference frame image according to a predetermined threshold; and if yes, compressing and transmitting the N-th frame image; otherwise, not compressing and transmitting the N-th frame image; increasing N by 1 and repeating the above operations till the frame image sequence is over.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.