Audio visual signature, method of deriving a signature, and method of comparing audio-visual data
US8682651B2 · kind B2 · utility
4Cited by
4References
4Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 20, 2009 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Apr 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/59
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to the analysis of characteristics of audio and/or video signals for the generation of audio-visual content signatures. To determine an audio signature a region of interest for example of high entropy—is identified in audio signature data. This region of interest is then provided as an audio signature with offset information. A video signature is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.