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Divided-aperture infra-red spectral imaging system

  • US 9,562,849 B2
  • Filed: 11/12/2014
  • Issued: 02/07/2017
  • Est. Priority Date: 11/12/2013
  • Status: Active Grant
First Claim
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1. An infrared (IR) imaging system, the imaging system comprising:

  • a plurality of cameras;

    at least one thermal reference source having a known temperature;

    a plurality of mirrors configured to reflect radiation from the at least one thermal reference source towards the plurality of cameras; and

    a data-processing unit comprising a processor, the imaging system configured to;

    acquire with the plurality of cameras one or more image frames of an object, a plurality of the one or more image frames having regions with the known temperature that corresponds to the at least one reference source; and

    apply a dynamic calibration correction to the plurality of cameras based on the plurality of the one or more image frames having regions with the known temperature to allow every camera in the plurality of cameras to be calibrated to agree with every other camera in the plurality of cameras.

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