Feature optimization and reliability for audio and video signature generation and detection
US8400566B2 · kind B2 · utility
31Cited by
6References
27Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 17, 2009 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Oct 8, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44008
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Features are extracted from video and audio content that have a known temporal relationship with one another. The extracted features are used to generate video and audio signatures, which are assembled with an indication of the temporal relationship into a synchronization signature construct. the construct may be used to calculate synchronization errors between video and audio content received at a remote destination. Measures of confidence are generated at the remote destination to optimize processing and to provide an indication of reliability of the calculated synchronization error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.