Method and device for coding a multi dimensional digital signal comprising original samples to form coded stream
US8989278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2010 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Nov 5, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/463
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method and a device for coding a multidimensional signal (LL0) comprising samples to form a coded stream (FC), such as an image or a multimedia content. The method comprises: —filtering (E102) original samples by applying a first filter (F, G) to obtain filtered samples (L1) —coding (E172) said filtered samples to obtain coded filtered samples adapted to be decoded by a decoder into decoded filtered samples, —applying (E106) a lossy modification on the filtered samples to obtain modified samples (L1dec); —determining (E110, E130, E150) a geometric orientation of one second filter (F′, G′) to be applied by the decoder to a decoded filtered sample, the determining being based on the modified samples, the original samples and a predetermined criterion, and —providing (E174) said determined geometric orientations and said coded filtered samples to the decoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.