Method and system for subband encoding and decoding of an overcomplete representation of the data structure
US7876820B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 3, 2002 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Jul 11, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/63
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bit stream representing n-dimensional data structures may be encoded and decoded. A part of the data can be mappable within predefined similarity criteria to a part of the data of another data structure. The similarity criteria may include, a spatial or temporal shift of the data. The data structures are typically sequential video frames such as is used in motion estimation and/or compensation of moving pictures, and a part of the data structure may be a block of data within a frame. The shift may be any suitable shift such as linear translation, rotation, or change of size. Digital filtering may be applied to a reference or other frame of data to generate subbands of a set of subbands of an overcomplete representation of the frame by calculations performed at single rate. The digital filtering may be implemented in a separate filter module or in software.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.