Video coding method and device
US8396135B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2006 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Dec 9, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6583
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video coding method, comprising the following steps: a) successive images (F) of a video sequence are coded to generate coding parameters, b) the coding parameters are included in an output stream (Φ) to be transmitted to a station (B) including a decoder (2), c) back channel information on reconstruction of the images of the video sequence by the decoder is received from said station, d) the back channel information is analyzed in order: d1) to identify a reconstructed image that includes a portion that has been lost in the decoder, d2) to identify in the subsequent coded images between said reconstructed image and a current image to be coded an image portion that refers to said lost portion identified in the step d1), e) said current image of the video sequence is coded in a coding mode that is a function of the identification or non-identification of a lost portion in the step d).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.