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Image sensor with auto-focus and pixel cross-talk compensation

  • US 9,584,743 B1
  • Filed: 09/09/2014
  • Issued: 02/28/2017
  • Est. Priority Date: 03/13/2014
  • Status: Active Grant
First Claim
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1. A computer-implemented method for producing a digital image using an image sensor comprised of a pixel array, the method comprising:

  • obtaining, using a processor, a set of coefficients representing a relative measurement between;

    an affected pixel that is proximate to an auto-focus pixel having a shield element and is optically affected by the shielding element,and an unaffected pixel that is at least one additional pixel away from the auto-focus pixel as compared to the affected pixel;

    constructing, using the processor, a predictive function based on the set of coefficients wherein the predictive function is constructed by performing a non-linear regression on at least part of the set of coefficients;

    computing, using the processor, a compensated pixel value for at least one pixel of the image sensor using the predictive function; and

    creating a digital image, using the image sensor, based in part on the compensated value.

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