Automatic face and facial feature location detection for low bit rate model-assisted H.261 compatible coding of video
US5852669A · kind A · utility
251Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1995 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | Jul 10, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus responds to a video signal representing a succession of frames, where at least one of the frames corresponds to an image of an object, to detect at least a region of the object. The apparatus includes a processor for processing the video signal to detect at least the region of the object characterized by at least a portion of a closed curve and to generate a plurality of parameters associated with the closed curve for use in coding the video signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.