Method and device for noise reduction
US6535254B1 · kind B1 · utility
31Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of reducing noise in a video signal which includes a plurality of video frames being composed of a plurality of pixels, the method comprising the steps of: comparing video information contained in a current video frame and a plurality of temporally adjacent video frames; selecting from the current video frame and the adjacent video frames the video information that according to a predetermined condition is likely to be correct for the current video frame; and finally assigning the selected video information to the current video frame to thereby produce a video frame wherein noise has been reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.