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Methods and apparatuses for addressing chromatic aberrations and purple fringing

  • US 8,786,709 B2
  • Filed: 12/24/2012
  • Issued: 07/22/2014
  • Est. Priority Date: 01/28/2008
  • Status: Expired due to Fees
First Claim
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1. A processor-implemented method of correcting lateral chromatic aberrations in digital images within a digital image acquisition device, comprising:

  • calibrating a camera-lens pair, wherein the calibrating comprises;

    detecting a point of a test image based on one or more characteristics of the point;

    determining that the point is part of a measurement point;

    measuring aberration of one or more colors at the measurement point; and

    interpolating scattered data;

    acquiring a digital image;

    correcting lateral chromatic aberrations within the digital image, including;

    finding a displacement for a current pixel in a temporary buffer;

    designating the displacement as a relative position in a source buffer; and

    interpolating a displacement value; and

    outputting, storing, displaying, projecting, or transmitting a corrected digital image which has been corrected for lateral chromatic aberrations in two dimensions, or a further processed version of the digital image, or combinations thereof.

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