发明名称 |
Video processing system and method with recursive and non-recursive filtering in separate high frequency bands |
摘要 |
A video noise reducer divides a signal into spatial frequency bands and derives both recursively and non-recursively filtered signals for each band. Both signals are processed non-linearly. These signals are combined in ways that vary between the bands to provide a noise signal and a detail signal. A clean video signal with all noise removed is used in the recursive loop. The output signal includes detail enhancement and may have a subjectively pleasant amount of noise added back.
|
申请公布号 |
US7969510(B2) |
申请公布日期 |
2011.06.28 |
申请号 |
US20050520945 |
申请日期 |
2005.11.04 |
申请人 |
SNELL LIMITED |
发明人 |
WESTON MARTIN;STEINBERG AVIGDOR |
分类号 |
H04N5/21;H04N5/213;H04N7/26 |
主分类号 |
H04N5/21 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|