Signaling for entry point frames with predicted first field
US7609762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2004 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Jan 6, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8455
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video decoder receives an entry point key frame comprising first and second interlaced video fields and decodes a first syntax element comprising information (e.g., frame coding mode) for the entry point key frame at a first syntax level (e.g., frame level) in a bitstream. The first interlaced video field is a predicted field, and the second interlaced video field is an intra-coded field. The information for the entry point key frame can be a frame coding mode (e.g., field interlace) for the entry point key frame. The decoder can decode a second syntax element at the first syntax level comprising second information (e.g., field type for each of the first and second interlaced video fields) for the entry point key frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.