Digital signal coding, decoding and transmission, with decomposition into frequency sub-bands and segmentation
US6711298B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2000 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Oct 12, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/649
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method of coding a set of data (IM) representing physical quantities, characterized in that it includes the steps of:decomposing (E20) the set of data into a plurality of frequency sub-bands on at least one resolution level,then, for each resolution level,segmenting (E23, E26) at least one sub-band into at least two homogeneous regions, in order to form a segmentation map,ordering (E30, E33) the regions according to a predetermined criterion,coding (E21) the sub-bands of the resolution level under consideration,ordering (E31, E34) the coding data of the sub-bands as a function of the order of the regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.