Image extraction from video content
US7590333B2 · kind B2 · utility
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2References
21Claims
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Assignee
Inventor
Key dates
| Filing date | Oct 15, 2001 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Mar 13, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/84
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Image templates define characteristics of video content desired to be recorded, including color characteristics and spatial distribution of regions to be compared in determining a level of similarity and white regions of expected variability which are ignored in the comparison. Each image template is compared to fields for an associated channel, either continuously or during a predefined period. Fields received on the associated channel which have at least a threshold level of similarity are saved, together with associated audio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.