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THERMAL IMAGER WITH LARGE DYNAMIC RANGE AND IMPROVED SIGNAL-TO-NOISE RATIO

  • US 20150098663A1
  • Filed: 10/04/2013
  • Published: 04/09/2015
  • Est. Priority Date: 10/04/2013
  • Status: Active Grant
First Claim
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1. A system for producing thermal images with large dynamic range and high signal-to-noise ratio, the system comprising:

  • a thermal imaging camera for capturing thermal images, each of the thermal images made up of a plurality of pixels and having a dynamic range;

    a user interface; and

    a processor for processing thermal images captured by the camera, the processor configured to;

    analyze, pixel-by-pixel, a first thermal image captured by the thermal imaging camera, the first thermal image having a first dynamic range;

    define a first set of pixels, the first set of pixels comprising pixels from the first thermal image that are not saturated or nearly saturated in the first dynamic range;

    define a second set of pixels, the second set of pixels comprising pixels not in the first set of pixels; and

    create a final thermal image, the final thermal image comprising the first set of pixels from the first thermal image and the second set of pixels from a second thermal image, the second thermal image having a second dynamic range with an upper limit higher than that of, and at least partially overlapping, the first dynamic range.

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