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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 5, Iss. 10 — Jul. 19, 2010

Separation of CARS image contributions with a Gaussian mixture model

Nadine Vogler, Thomas Bocklitz, Melissa Mariani, Volker Deckert, Aneta Markova, Peter Schelkens, Petra Rösch, Denis Akimov, Benjamin Dietzek, and Jürgen Popp  »View Author Affiliations


JOSA A, Vol. 27, Issue 6, pp. 1361-1371 (2010)
http://dx.doi.org/10.1364/JOSAA.27.001361


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Abstract

Coherent anti-Stokes Raman scattering (CARS) gained a lot of importance in chemical imaging. This is due to the fast image acquisition time, the high spatial resolution, the non-invasiveness, and the molecular sensitivity of this method. By using the single-line CARS in contrast to the multiplex CARS, different signal contributions stemming from resonant and non-resonant light–matter interactions are indistinguishable. Here a numerical method is presented in order to extract more information from univariate CARS images: vibrational composition, morphological information, and contributions from index-of-refraction steps can be separated from single-line CARS images. The image processing algorithm is based on the physical properties of CARS process as reflected in the shape of the intensity histogram of univariate CARS images. Because of this the comparability of individual CARS images recorded with different experimental parameters is achieved. The latter is important for a quantitative evaluation of CARS images.

© 2010 Optical Society of America

OCIS Codes
(150.1135) Machine vision : Algorithms
(100.3008) Image processing : Image recognition, algorithms and filters
(180.4315) Microscopy : Nonlinear microscopy

ToC Category:
Image Processing

History
Original Manuscript: November 6, 2009
Revised Manuscript: March 4, 2010
Manuscript Accepted: April 1, 2010
Published: May 14, 2010

Virtual Issues
Vol. 5, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Nadine Vogler, Thomas Bocklitz, Melissa Mariani, Volker Deckert, Aneta Markova, Peter Schelkens, Petra Rösch, Denis Akimov, Benjamin Dietzek, and Jürgen Popp, "Separation of CARS image contributions with a Gaussian mixture model," J. Opt. Soc. Am. A 27, 1361-1371 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-27-6-1361

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