Adaptive bidirectional filtering for video noise reduction
US7330218B2 · kind B2 · utility
5Cited by
5References
26Claims
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Key dates
| Filing date | Sep 2, 2004 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Apr 19, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S348/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video noise reduction system for reducing video noise in a sequence of video frames. In the video noise reduction system, a temporal filter computes multiple temporal average values for the video frames in different temporal directions. A motion detector computes multiple motion signal values for the video frames in different temporal directions. Finally, a control unit selects one of the temporal average values based on the motion signal values as output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.