Method and system for reducing noise in signal systems
US7130477B1 · kind B1 · utility
4Cited by
4References
55Claims
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Key dates
| Filing date | Jan 8, 2003 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Dec 24, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for reducing noise in image and audio signals for processing and output display includes determining noise estimates for a given signal and performing a noise reduction routine for two adjacent data in a signal array. By using a predetermined conversion factor and a permissible delta (deviation) between the two adjacent data, energy may be shifted from the higher valued data to the lower valued data to reduce the noise level without changing the total intensity of the signal array (corresponding to image and/or audio data).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.