Method of identifying inconsistent field dominance metadata in a sequence of video frames
US8351499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Apr 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/234309
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a method of identifying inconsistent field order flags for a sequence of video frames comprising: for each frame in the sequence of video frames analyzing the frame to make an initial determination of the field order for that frame; averaging the initial determination of the field order over a predefined number of most recently analyzed frames; and determining those frames for which the averaged field order does not match the field order identified by a respective field order metadata item associated with each frame by comparing the averaged field order for each frame to the respective field order metadata item.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.