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Global and local multi-valued dissimilarity-based classification: Application to computer-aided detection of tuberculosis

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5 Citations (Scopus)

Abstract

In many applications of computer-aided detection (CAD) it is not possible to precisely localize lesions or affected areas in images that are known to be abnormal. In this paper a novel approach to computer-aided detection is presented that can deal effectively with such weakly labeled data. Our approach is based on multi-valued dissimilarity measures that retain more information about underlying local image features than single-valued dissimilarities. We show how this approach can be extended by applying it locally as well as globally, and by merging the local and global classification results into an overall opinion about the image to be classified. The framework is applied to the detection of tuberculosis (TB) in chest radiographs. This is the first study to apply a CAD system to a large database of digital chest radiographs obtained from a TB screening program, including normal cases, suspect cases and cases with proven TB. The global dissimilarity approach achieved an area under the ROC curve of 0.81. The combination of local and global classifications increased this value to 0.83.

Original languageEnglish
Title of host publicationMedical Image Computing and Computer-Assisted Intervention - MICCAI2009 - 12th International Conference, Proceedings
EditorsGuang-Zhong Yang, David Hawkes, Daniel Rueckert, Alison Noble, Chris Taylor
Pages724-731
Number of pages8
EditionPART 2
ISBN (Electronic)978-3-642-04271-3
DOIs
Publication statusPublished - 1 Dec 2009
Event12th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2009 - London, United Kingdom
Duration: 20 Sept 200924 Sept 2009

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 2
Volume5762 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference12th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2009
Country/TerritoryUnited Kingdom
CityLondon
Period20/09/0924/09/09

Keywords

  • Algorithms
  • Humans
  • Lung
  • Pattern Recognition, Automated
  • Radiographic Image Enhancement
  • Radiographic Image Interpretation, Computer-Assisted
  • Radiography, Thoracic
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Tuberculosis
  • Journal Article

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