Evaluation of a nonlinear diffusion process for segmentation and quantification of lesions in Optical Coherence Tomography images

Delia Cabrera Fernández, Harry M. Salinas

Research output: Contribution to journalConference article

5 Scopus citations

Abstract

We evaluate the ability of a nonlinear anisotropic diffusion process to enhance the contrast for structural boundary regions and to reduce the speckle noise in optical coherence tomography (OCT) images. We also investigate the suitability of various image features, such as gradient magnitude and intensity or gradient profiles, for boundary localization. The results suggest that the nonlinear anisotropic diffusion method has potential in assisting segmentation and quantification of fluid-filled regions in clinical OCT images.

Original languageEnglish (US)
Article number213
Pages (from-to)1834-1843
Number of pages10
JournalProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume5747
Issue numberIII
DOIs
StatePublished - Aug 25 2005
EventMedical Imaging 2005 - Image Processing - San Diego, CA, United States
Duration: Feb 13 2005Feb 17 2005

Keywords

  • Active contour models
  • Age-related macular degeneration
  • Edge detection
  • Nonlinear anisotropic diffusion
  • Ophthalmology
  • Optical coherence tomography
  • Retina
  • Snakes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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