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Intravascular Ultrasound Images Vessel Characterization Using AdaBoost

  • Oriol Pujol
  • Misael Rosales
  • Petia Radeva
  • Eduard Nofrerias-Fernández
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2674)

Abstract

This paper presents a method for accurate location of the vessel borders based on boosting of classifiers and feature selection. Intravascular Ultrasound Images (IVUS) are an excellent tool for direct visualization of vascular pathologies and evaluation of the lumen and plaque in coronary arteries. Nowadays, the most common methods to separate the tissue from the lumen are based on gray levels providing non-satisfactory segmentations. In this paper, we propose and analyze a new approach to separate tissue from lumen based on an ensemble method for classification and feature selection. We perform a supervised learning of local texture patterns of the plaque and lumen regions and build a large feature space using different texture extractors. A classifier is constructed by selecting a small number of important features using AdaBoost. Feature selection is achieved by a modification of the AdaBoost. A snake is set to deform to achieve continuity on the classified image. Different tests on medical images show the advantages.

Keywords

Feature Selection Feature Space Feature Point Gray Level Linear Discriminant Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Oriol Pujol
    • 1
  • Misael Rosales
    • 1
  • Petia Radeva
    • 1
  • Eduard Nofrerias-Fernández
    • 2
  1. 1.Computer Vision CenterUniversitat Autònoma de BarcelonaBellaterraSpain
  2. 2.Hospital Universitari Germans Trias i PujolCan Ruti. BarcelonaSpain

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