Method for detecting talking heads in a compressed video
US6847680B2 · kind B2 · utility
5Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2001 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Aug 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/87
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method identifies a talking head or principal cast in a compressed video by first segmenting the video into shots. Motion activity descriptors are extracted from each of the shots, and combined into a shot motion activity descriptor. A distance between the shot motion activity descriptor and a template motion activity descriptor is measured. The template motion activity descriptor is obtained from a training video. If the measured distance is less than a predetermined threshold, then the shot is identified as including a talking head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.