Noise filter for Bayer pattern image data

Details Noise filter for Bayer pattern image data Noise filter for Bayer pattern image data

2008-05-06

2008-05-06

Ho, Tuan (Department: 2622)

Television

Camera, system and detail

With single image scanning device supplying plural color...

C348S273000

Reexamination Certificate

active

10232820

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.

REFERENCES:
patent: 5818964 (1998-10-01), Itoh
patent: 6041145 (2000-03-01), Hayashi et al.
patent: 6108455 (2000-08-01), Mancuso
patent: 6229578 (2001-05-01), Acharya et al.

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