Detecting video formats
US9148620B2 · kind B2 · utility
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3References
26Claims
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Key dates
| Filing date | Apr 11, 2011 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Jan 6, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0115
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The format of telecined video may be determined including a bottom field first cadence. In addition, video using 2:3:3:2 top field first can be identified. Moreover, mixed cadence videos can also be detected. In some embodiments, mixed cadence videos may be detected by calculating variances of different areas within a frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.