Sharing reference data between multiple encoders parallel encoding a sequence of video frames
US6356589B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1999 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Jan 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital video encode system, method and computer program product are described wherein a picture is divided into multiple active areas that are parallel encoded using multiple encoders. The encoders associated with adjoining active areas of the picture are configured to exchange reference data to facilitate avoiding appearance of a seam between the adjoining active areas of a subsequent picture in a sequence of pictures due to separate encoding thereof by the multiple encoders. The reference data transferred from one encoder to an adjoining encoder is an encoded and decoded section of the picture and is used by the adjoining encoder as an expanded reference area for motion estimation when encoding the subsequent picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.