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Systems And Methods for Hybrid Compression Of Spectral Image Data

  • US 20140307975A1
  • Filed: 04/10/2013
  • Published: 10/16/2014
  • Est. Priority Date: 04/10/2013
  • Status: Active Grant
First Claim
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1. A method for generating a compressed spectral image, said method comprising:

  • receiving spectral image data, said spectral image data comprising a plurality of spectral intensity values, each of said spectral intensity values associated with a first spatial dimension (x-dimension), a second spatial dimension (y-dimension) and a wavelength dimension (λ

    -dimension);

    applying a window to said spectral image data along said λ

    -dimension, said window configured to select a subset of said spectral image data corresponding to a range of wavelengths;

    performing a Fourier transform on said windowed spectral image data along said λ

    -dimension, said Fourier transform performed at a plurality of locations along said x-dimension and said y-dimension, said Fourier transform configured to generate a plurality of Fourier coefficients associated with each of said locations;

    filtering said Fourier transformed data, said filtering comprising retaining a subset of said Fourier coefficients at each of said locations; and

    performing wavelet compression of said filtered data along said x-dimension and along said y-dimension to generate said compressed spectral image.

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