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Systems and methods for the multispectral imaging and characterization of skin tissue

  • US 6,081,612 A
  • Filed: 02/27/1998
  • Issued: 06/27/2000
  • Est. Priority Date: 02/28/1997
  • Status: Expired due to Term
First Claim
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1. A method of characterizing the condition of a region of interest of skin, wherein the absorption and scattering of light in different spectral bands by the region of interest is a function of the condition of the skin, the method comprising:

  • illuminating a portion of the skin including the region of interest by light in at least three spectral bands;

    digitally imaging a portion of the skin including the region of interest at the at least three spectral bands with the light re-emitted by the portion of the skin to generate digital images comprising digital signals whose values are a function of the condition of the region of interest of the skin; and

    providing the digital images to a processor, wherein the processor;

    segments the digital images by generating a segmentation mask defining the boundary of the region of interest from a digital image in any one of the at least three spectral bands;

    computes at least one rotationally and translationally invariant statistical measure of coefficient distributions of the multiscale wavelet maxima representations of the digital images in each spectral band, which are functions of the texture of the region of interest determined by the segmentation mask;

    characterizes the condition of the skin based on the estimated values; and

    outputs the characterization of the condition of the skin.

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