Noise reduction apparatus, noise reduction method, and computer-readable storage medium
US9299131B2 · kind B2 · utility
1Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Aug 21, 2012 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Oct 28, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20076
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to a noise reduction method, comprising: for each of multi-layer regions each containing a pixel of interest and having a successively reducing area, calculating a pixel statistic value of pixels in that region; for each of successive layers, correcting the pixel statistic value for a region at a current layer using a corrected pixel statistic value for a region at a preceding layer having a greater area than that of the region at the current layer; and correcting the pixel of interest using a corrected pixel statistic value for a region with a smallest area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.