Video noise reducer
US6259489A · kind A · utility
28Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1999 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Apr 21, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a video noise reducer, where pixel information is recursively filtered, with recursion being disabled at a disjuncture (caused by motion, planning, shot-change or otherwise), recursively filtered pixel information prior to disjuncture continues to be output until pixel information following the disjuncture has been recursively filtered to an appropriate degree of noise reduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.