Fingerprinting to match videos having varying aspect ratios
US8947595B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2010 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Sep 17, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A combined fingerprint is generated for a video that can match two near-identical videos that differ only in their aspect ratios or formats. A transformation strategy is selected by selecting a first and a second aspect correction method. A first transformed video is generated by applying the first aspect correction method to the video. A second transformed video is generated by applying the second aspect correction method to the video. A first fingerprint is generated using the first transformed video. A second fingerprint is generated using the second transformed video. The combined fingerprint is generated by combining the first half of the first fingerprint with the second half of the second fingerprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.