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Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 41,
  • Issue 3,
  • pp. 449-453
  • (1987)

Compression of Infrared Libraries by Eigenvector Projection

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Abstract

Different methods of data preprocessing were evaluated for the compression of Fourier transform-infrared spectral libraries by principal component analysis (PCA). The effect of noise on compressed library searches was examined. A PCA compression of an infrared library achieved an 81% reduction in size without any loss in search performance.

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