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Method and system for enhancing short wave infrared images using super resolution (SR) and local area processing (LAP) techniques

  • US 8,200,046 B2
  • Filed: 04/11/2008
  • Issued: 06/12/2012
  • Est. Priority Date: 04/11/2008
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • providing a processor;

    collecting, using the processor, a plurality of low-intensity infrared images;

    enhancing, using the processor, the plurality of low-intensity infrared images to produce a sequence of enhanced images;

    registering, using the processor, the sequence of enhanced images;

    accumulating, using the processor, the intensities of the registered sequence of enhanced images to produce a composite image;

    enhancing, using the processor, the composite image; and

    outputting, using the processor, the enhanced composite image,wherein enhancing the plurality of low-intensity infrared images includes;

    selecting a first subset of low-intensity infrared images from the plurality of low-intensity infrared images;

    selecting a first low-intensity infrared image from the first subset of low-intensity infrared images;

    determining a region of interest in the first low-intensity infrared image;

    extracting a first window image from the first low-intensity infrared image which corresponds to the determined region of interest;

    up-sampling and sharpening the extracted first window image;

    selecting a second low-intensity infrared image from the first subset of low-intensity infrared images;

    extracting a second window image based on the region of interest of the first low-intensity infrared image;

    up-sampling and sharpening the extracted second window image;

    generating a composite window based on the first and second extracted window images;

    enhancing the generated composite window; and

    combining the enhanced composite window with the selected first low-intensity infrared image.

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