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MADSTRESS: A linear approach for evaluating scattering and absorption coefficients of samples measured using time-resolved spectroscopy in reflection

Chauchard, F; Roger, JM; Bellon-Maurel, V; Abrahamsson, Christoffer LU ; Andersson-Engels, Stefan LU and Svanberg, Sune LU (2005) In Applied Spectroscopy 59(10). p.1229-1235
Abstract
Time-resolved spectroscopy is a powerful technique permitting the separation of the scattering properties from the chemical absorption properties of a sample. The reduced scattering coefficient and the absorption coefficient are usually obtained by fitting diffusion or Monte Carlo models to the measured data using numerical optimization techniques. However, these methods do not take the spectral dimension of the data into account during the evaluation procedure, but evaluate each wavelength separately. A procedure involving multivariate methods may seem more appealing for people used to handling conventional near-infrared data. In this study we present a new method for processing TRS spectra in order to compute the absorption and reduced... (More)
Time-resolved spectroscopy is a powerful technique permitting the separation of the scattering properties from the chemical absorption properties of a sample. The reduced scattering coefficient and the absorption coefficient are usually obtained by fitting diffusion or Monte Carlo models to the measured data using numerical optimization techniques. However, these methods do not take the spectral dimension of the data into account during the evaluation procedure, but evaluate each wavelength separately. A procedure involving multivariate methods may seem more appealing for people used to handling conventional near-infrared data. In this study we present a new method for processing TRS spectra in order to compute the absorption and reduced scattering coefficients. This approach, MADSTRESS, is based on linear regression and a twodimensional (2D) interpolation procedure. The method has allowed us to calculate absorption and scattering coefficients of apples and fructose powder. The accuracy of the method was good enough to provide the identification of fructose absorption peaks in apple absorption spectra and the construction of a calibration model predicting the sugar content of apples. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
equation of diffusion, time-resolved spectroscopy, multi-linear, regression, apple absorption coefficient, light continuum, fructose, absorption coefficient
in
Applied Spectroscopy
volume
59
issue
10
pages
1229 - 1235
publisher
Society for Applied Spectroscopy
external identifiers
  • wos:000232625800007
  • scopus:27644557700
ISSN
1943-3530
DOI
10.1366/000370205774430828
language
English
LU publication?
yes
id
baa1a3e3-70b2-4a59-bc92-169967123d63 (old id 218924)
date added to LUP
2007-08-17 15:41:23
date last changed
2017-11-05 03:39:54
@article{baa1a3e3-70b2-4a59-bc92-169967123d63,
  abstract     = {Time-resolved spectroscopy is a powerful technique permitting the separation of the scattering properties from the chemical absorption properties of a sample. The reduced scattering coefficient and the absorption coefficient are usually obtained by fitting diffusion or Monte Carlo models to the measured data using numerical optimization techniques. However, these methods do not take the spectral dimension of the data into account during the evaluation procedure, but evaluate each wavelength separately. A procedure involving multivariate methods may seem more appealing for people used to handling conventional near-infrared data. In this study we present a new method for processing TRS spectra in order to compute the absorption and reduced scattering coefficients. This approach, MADSTRESS, is based on linear regression and a twodimensional (2D) interpolation procedure. The method has allowed us to calculate absorption and scattering coefficients of apples and fructose powder. The accuracy of the method was good enough to provide the identification of fructose absorption peaks in apple absorption spectra and the construction of a calibration model predicting the sugar content of apples.},
  author       = {Chauchard, F and Roger, JM and Bellon-Maurel, V and Abrahamsson, Christoffer and Andersson-Engels, Stefan and Svanberg, Sune},
  issn         = {1943-3530},
  keyword      = {equation of diffusion,time-resolved spectroscopy,multi-linear,regression,apple absorption coefficient,light continuum,fructose,absorption coefficient},
  language     = {eng},
  number       = {10},
  pages        = {1229--1235},
  publisher    = {Society for Applied Spectroscopy},
  series       = {Applied Spectroscopy},
  title        = {MADSTRESS: A linear approach for evaluating scattering and absorption coefficients of samples measured using time-resolved spectroscopy in reflection},
  url          = {http://dx.doi.org/10.1366/000370205774430828},
  volume       = {59},
  year         = {2005},
}