Noise filter for Bayer pattern image data
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United States of America Patent
Stats
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May 6, 2008
Grant Date -
Mar 13, 2003
app pub date -
Aug 28, 2002
filing date -
Aug 31, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of filtering an image filter is disclosed. The filter is provided for a digital camera including image sensors sensitive to light, a color filter placed over sensitive elements of the sensors and patterned according to a Bayer mosaic pattern layout and an interpolation algorithm joining together the digital information provided by differently colored adjacent pixels in said Bayer pattern. The filter is adaptive and includes a noise level computation block for operating directly on a said Bayer pattern data set of for each color channel thus removing noise while simultaneously preserving picture detail.
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Cited Art Landscape
Patent Citation Ranking
- 196 Citation Count
- H04N Class
- 95.64 % this patent is cited more than
- 17 Age
