Digital video processing
US6608866B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1999 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Jun 23, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/513
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital video processing system and method for deriving an output compressed video signal from an input compressed video signal. The input compressed video signal represents successive input pictures. Subsets of the input pictures are derived from other input pictures according to input picture motion vectors corresponding to a repetitive GOP (Group of Pictures) structure. The output compressed video signal represents successive output pictures, subsets of the output pictures being derived from other output pictures according to output picture motion vectors corresponding to a repetitive GOP structure that is different from, or not picture-aligned with, the GOP structure of the input compressed video signal. The output picture motion vectors are derived from the input picture motion vectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.