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Producing full-color image using CFA image

  • US 8,068,153 B2
  • Filed: 03/27/2009
  • Issued: 11/29/2011
  • Est. Priority Date: 03/27/2009
  • Status: Active Grant
First Claim
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1. A method of forming a full-color output image using a color filter array image having a plurality of color channels and a panchromatic channel, comprising one or more processors for providing the following:

  • a) capturing the color filter array image using a color filter array image sensor, the color filter array image having the plurality of color channels and the panchromatic channel, wherein the panchromatic channel is captured using a different exposure time than at least one of the plurality of color channels of the color filter array image;

    b) computing an interpolated color image and an interpolated panchromatic image from the color filter array image;

    c) computing a chrominance image from the interpolated color image, wherein computing the chrominance image includescomputing a synthetic panchromatic image from the interpolated color image, andmodifying the chrominance image as a function of the synthetic panchromatic image and the interpolated panchromatic image; and

    d) forming the full-color output image using the interpolated panchromatic image and the chrominance image.

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