Accelerated predictive-transform
US7046856B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 7, 2002 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Oct 14, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/153
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is drawn to a method for digital image modeling in which the digital image is divided into digital image blocks. First, a coder input vector of the digital image blocks is received. Second, a coefficient vector is approximated, each coefficient or coefficient vector corresponding to one of the digital image blocks. The approximating step further comprises generating a transformation matrix that yields a coefficient vector from a product of the coder input vector and decomposing the transformation matrix into a product of multi-diagonal or sparse unitary transformation matrixes and an energy sequencer unitary transformation matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.