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Image analysis techniques

  • US 10,306,738 B2
  • Filed: 06/24/2016
  • Issued: 05/28/2019
  • Est. Priority Date: 02/08/2016
  • Status: Active Grant
First Claim
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1. A method comprising:

  • obtaining a frame from an image sensor, the frame comprising a plurality of zones, wherein each one of the plurality of zones comprise a plurality of pixels and each one of the plurality of pixels is associated with a pixel value;

    for each respective pixel of a respective zone;

    determining a pixel change value based on an average pixel value of the respective pixel over a plurality of frames; and

    normalizing the pixel change value based on an average zone change value for the respective zone, wherein the average zone change value is based on the pixel change value for each pixel in the respective zone.

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