Method of selecting key-frames from a video sequence
US7184100B1 · kind B1 · utility
105Cited by
10References
26Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 24, 1999 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Mar 24, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/9205
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of selecting key-frames (230) from a video sequence (210, 215) by comparing each frame in the video sequence with respect to its preceding and subsequent key-frames for redundancy where the comparison involves region and motion analysis. The video sequence is optionally pre-processed to detect graphic overlay. The key-frame set is optionally post-processed (250) to optimize the resulting set for face or other object recognition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.