Methods and apparatuses that reduce noise in image signals
US7876957B2 · kind B2 · utility
13Cited by
13References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2007 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Nov 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2209/046
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatuses for noise reduction include embodiments that use a weighted combination based on the presence of edges of two calculated demosaiced signals to produce a noise reduced signal. The noise reduced signal may be sharpened based on a calculated luminance of the two demosaiced signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.