Method and device for the processing of data notably the compression and decompression of image data
US6266451A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1998 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Mar 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/99
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The method for primary processing according to the invention takes into account a minimum dimension and a partition of a set of data into so-called "initial elementary" subsets (K.sub.i). It includes: PA1 a) for each elementary subset which size is larger than the minimum dimension, one iteration of: PA2 a division suitability estimation step, and PA2 when appropriate, a step of "supplementary partitioning" of the said subset, PA1 b) a "construction" step of a global multidimensional mapping and non-linear mapping, the restrictions of the global mapping to the elementary subsets (K.sub.i) being composed of elementary mappings, the fixed point of the global mapping constituting an approximation of all or part of this set, the set of parameters (a.sub.i, b) determined by the restrictions constituting an approximation of the said set of data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.