Video codec method and system
US8369633B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2009 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Dec 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/17
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques pertaining to scalable video codec are disclosed. According to one aspect of the present invention, a video image is analyzed and a region of interest (ROI) and a region of non-interest (non-ROI) are identified. By comparing the non-ROI image with that of a previous image, a background ignored identifier is created indicating whether the non-ROI can be ignored during encoding and decoding processes. Based on the status of the background ignored identifier, the encoder encodes the images into a basic layer (BL) and an enhanced layer (EL), and transmits the coded bit streams along with the identifier to a decoder. The decoder reconstructs the image based on the identifier and the BL and the EL bit streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.