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Hyperspectral imaging calibration device

  • US 20020154300A1
  • Filed: 11/07/2001
  • Published: 10/24/2002
  • Est. Priority Date: 11/07/2000
  • Status: Active Grant
First Claim
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1. A hyperspectral image calibration pad has at least one surface exterior to the body part with the following optical properties:

  • a. at least 95% opaque to electromagnetic radiation over a predetermined wavelength range of at least 50 nanometers;

    b. has a predetermined reflectance of at least 1 percent to wavelengths of light over said wavelength range;

    c. has a reflectance value for at least a first wavelength within said 50 nanometer wavelength range that varies less than 10% over a desirable image region; and

    d. has a reflectance value for at least a second wavelength within said 50 nanometer wavelength range that varies less than 10% over a desirable image region.

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