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2D Image Registration in CT Images Using Radial Image Descriptors

  • Franz Graf
  • Hans-Peter Kriegel
  • Matthias Schubert
  • Sebastian Pölsterl
  • Alexander Cavallaro
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6892)

Abstract

Registering CT scans in a body atlas is an important technique for aligning and comparing different CT scans. It is also required for navigating automatically to certain regions of a scan or if sub volumes should be identified automatically. Common solutions to this problem employ landmark detectors and interpolation techniques. However, these solutions are often not applicable if the query scan is very small or consists only of a single slice. Therefore, the research community proposed methods being independent from landmark detectors which are using imaging techniques to register the slices in a generalized height scale. In this paper, we propose an improved prediction method for registering single slices. Our solution is based on specialized image descriptors and instance-based learning. The experimental evaluation shows that the new method improves accuracy and stability of comparable registration methods by using only a a single CT slice is required for the registration.

Keywords

Computer Tomography Similarity Search Retrieval Localization 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Franz Graf
    • 1
  • Hans-Peter Kriegel
    • 1
  • Matthias Schubert
    • 1
  • Sebastian Pölsterl
    • 1
  • Alexander Cavallaro
    • 2
  1. 1.Institut für InformatikLudwig-Maximilians-Universität MünchenMünchenGermany
  2. 2.Radiologisches InstitutUniverstätsklinikum Erlangen Friedrich-Alexander-Universität Erlangen-NürnbergErlangenGermany

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