Title:
FAST AREA-SELECTED FILTERING FOR PIXEL-NOISE AND ANALOG ARTIFACTS REDUCTION
Document Type and Number:
WIPO Patent Application WO2006020532
Kind Code:
A3
Abstract:
A method for processing a video signal having a plurality of sequential frames comprising an array of pixels each having a pixel value and arranged in a plurality of horizontal lines. The method includes receiving a selected frame of the video signal (12) and processing the selected frame (14), wherein processing the selected frame includes determining an amount of motion of pixels of the selected frame, retaining pixel values of the pixels of the selected frame if the amount of motion in the pixels of the selected frame is greater than a pixel change threshold (18), and replacing the pixel values of the pixels of the selected frame with filtered pixel values if the amount of motion in the pixels of the selected frame is equal to or less than the pixel change threshold (20). The method further includes storing the retained pixel values and filtered pixel values of the selected frame (22).
Inventors:
SCHMITZ MARTIN (DE)
DUVANENKO VICTOR J (US)
DUVANENKO VICTOR J (US)
Application Number:
PCT/US2005/027999
Publication Date:
April 06, 2006
Filing Date:
August 08, 2005
Export Citation:
Assignee:
PINNACLE SYSTEMS INC (US)
SCHMITZ MARTIN (DE)
DUVANENKO VICTOR J (US)
SCHMITZ MARTIN (DE)
DUVANENKO VICTOR J (US)
International Classes:
H04N5/21
Domestic Patent References:
| WO2001077871A1 | 2001-10-18 | |||
| WO1994009592A1 | 1994-04-28 |
Foreign References:
| EP1515544A1 | 2005-03-16 | |||
| EP0605165A2 | 1994-07-06 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 014, no. 095 (E - 0892) 21 February 1990 (1990-02-21)
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