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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 21 — Oct. 8, 2012
  • pp: 23442–23455

Improved Fourier-based characterization of intracellular fractal features

Joanna Xylas, Kyle P. Quinn, Martin Hunter, and Irene Georgakoudi  »View Author Affiliations

Optics Express, Vol. 20, Issue 21, pp. 23442-23455 (2012)

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A novel Fourier-based image analysis method for measuring fractal features is presented which can significantly reduce artifacts due to non-fractal edge effects. The technique is broadly applicable to the quantitative characterization of internal morphology (texture) of image features with well-defined borders. In this study, we explore the capacity of this method for quantitative assessment of intracellular fractal morphology of mitochondrial networks in images of normal and diseased (precancerous) epithelial tissues. Using a combination of simulated fractal images and endogenous two-photon excited fluorescence (TPEF) microscopy, our method is shown to more accurately characterize the exponent of the high-frequency power spectral density (PSD) of these images in the presence of artifacts that arise due to cellular and nuclear borders.

© 2012 OSA

OCIS Codes
(070.5010) Fourier optics and signal processing : Pattern recognition
(100.2960) Image processing : Image analysis
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(180.4315) Microscopy : Nonlinear microscopy

ToC Category:
Image Processing

Original Manuscript: August 1, 2012
Revised Manuscript: September 13, 2012
Manuscript Accepted: September 15, 2012
Published: September 27, 2012

Joanna Xylas, Kyle P. Quinn, Martin Hunter, and Irene Georgakoudi, "Improved Fourier-based characterization of intracellular fractal features," Opt. Express 20, 23442-23455 (2012)

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