DE-NOISING METHOD AND RELATED APPARATUS FOR IMAGE SENSOR
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United States of America Patent
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Issued Date -
Apr 14, 2011
app pub date -
Oct 12, 2009
filing date -
Oct 12, 2009
priority date (Note) -
Abandoned
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Abstract
A de-noising method includes: comparing a pixel value of a target pixel with pixel values of a plurality of nearby pixels, wherein each of the target pixel and the nearby pixels corresponds to a specific color component; for each nearby pixel of the nearby pixels, checking if a difference between the pixel value of the target pixel and a pixel value of a nearby pixel of the nearby pixels is smaller than a specific noise threshold value, and when the difference between the pixel value of the target pixel and the pixel value of the nearby pixel is smaller than the specific noise threshold value, setting the nearby pixel as a similar nearby pixel; and updating the pixel value of the target pixel according to the pixel value of the target pixel and a pixel value of each similar nearby pixel.
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