Scene-by-scene digital video processing
US7864840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2005 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Oct 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/87
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scene-by-scene (S×S) compression process enables improved visual quality within applicable compression constraints to be obtained. A compressed video signal is analyzed, generating compression statistics. A scene of the video signal is identified for re-compression and a maximum target bit rate for re-compressing the identified scene is determined based on the compression statistics and applicable compression constraints. A target bit rate for re-compressing the scene is selected based on the maximum target bit rate, and compression parameters for the scene are determined based on the scene's compression statistics and the selected target bit rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.