Signaling for field ordering and field/frame display repetition
US8116380B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2004 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Oct 19, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A decoder processes a first bitstream element (e.g., a pull-down flag) in a first syntax layer (e.g., sequence layer or entry point layer) above frame layer in a bitstream for a video sequence, the bitstream comprising encoded source video having a source type (e.g., progressive or interlace). The decoder processes frame data in a second syntax layer (e.g., frame layer) of the bitstream for a frame (such as an interlaced frame or progressive frame, depending on source type, or a skipped frame) in the video sequence. The first bitstream element indicates whether a repeat-picture element (e.g., a repeat-frame element or a repeat field-element) is present or absent in the frame data in the second syntax layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.