Fast area-selected filtering for pixel-noise and analog artifacts reduction
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United States of America Patent
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Issued Date -
Feb 9, 2006
app pub date -
Aug 9, 2004
filing date -
Aug 9, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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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 and processing the selected frame, 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, 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. The method further includes storing the retained pixel values and filtered pixel values of the selected frame.
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