Method for adapting quantization in video coding using face detection and visual eccentricity weighting
US6173069A · kind A · utility
94Cited by
25References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1998 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Mar 31, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30201
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system encodes video by detecting the location of a facial region of a frame of the video. Sensitivity information is calculated for each of a plurality of locations within the video based upon the location of the facial region. The frame is encoded in manner that provides a substantially uniform apparent quality of the plurality of locations to the viewer when the viewer is observing the facial region of the video.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.