Process and device for coding video images
US6909747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2001 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | Mar 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process and device for coding video images using a non object-based coding standard that extracts at least one video object from an image originating from a sequence of images, by the construction of a segmentation key defining the contours of the object in the image. The video object is coded according to the MPEG 2 standard so as to form an elementary stream (ES). The segmentation key relating to the video object is coded according to the MPEG 2 standard, so as to form an elementary stream. A background image into which the object is to be inserted is coded according to the MPEG 2 standard, so as to form an elementary stream. The elementary streams relating to one or more objects and to the background image are multiplexed so as to provide a program stream (PS) or transport stream (TS) according to the MPEG 2 standard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.