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IMAGE ANALYSIS TECHNIQUES

  • US 20170228874A1
  • Filed: 06/24/2016
  • Published: 08/10/2017
  • 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;

    determining a pixel change value for each of the plurality of pixels in the frame based on an average pixel value of the pixel over a plurality of frames; and

    normalizing the pixel change value based on an average zone change value for the one of the plurality of zones in which the one of the plurality of pixels is located, wherein the average zone change value is based on the pixel change value for each of the plurality of pixels in the zone.

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