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Apparatus and method for eliminating artifacts in active pixel sensor (APS) imagers

  • US 10,063,799 B2
  • Filed: 10/31/2011
  • Issued: 08/28/2018
  • Est. Priority Date: 03/09/1999
  • Status: Expired due to Fees
First Claim
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1. A method of operating an imager, comprising:

  • obtaining an analog pixel value from an imaging pixel of an image sensor;

    analog to digital converting the analog pixel value to obtain a digital pixel value corresponding to the analog pixel value;

    comparing the obtained digital pixel value to a predetermined saturated value;

    determining the obtained digital pixel value meets or exceeds the predetermined saturated value; and

    replacing the obtained digital pixel value with a different digital pixel value corresponding to a predetermined brightest pixel value, wherein the predetermined brightest pixel value is independent of digital pixel values of imaging pixels and the image sensor.

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