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RGBW sensor array

  • US 8,878,967 B2
  • Filed: 10/11/2010
  • Issued: 11/04/2014
  • Est. Priority Date: 03/05/2007
  • Status: Active Grant
First Claim
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1. A color filter enhancement method for a portable digital image acquisition device, comprising:

  • using optics, a color sensor array and a processor to acquire and process digital images;

    obtaining a first relatively underexposed and sharp image of a scene (“

    sharp image”

    ) by exposing a first set of pixels of the color sensor array;

    obtaining a second relatively well exposed and blurred image of the same scene (“

    blurred image”

    ) by exposing a second set of pixels of the color sensor array for a longer duration than the sharp image; and

    applying color information from the blurred image to the sharp image, thereby constructing a color-enhanced version of the sharp image;

    wherein applying the color information from the blurred image to the sharp image includes changing one or more pixels of the sharp image based on the color information of the blurred image.

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