International Conference on Medical Image Computing and Computer-Assisted Intervention

MICCAI 2014: Medical Image Computing and Computer-Assisted Intervention – MICCAI 2014 pp 413-420 | Cite as

Spatially Varying Registration Using Gaussian Processes

  • Thomas Gerig
  • Kamal Shahim
  • Mauricio Reyes
  • Thomas Vetter
  • Marcel Lüthi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8674)

Abstract

In this paper we propose a new approach for spatially-varying registration using Gaussian process priors. The method is based on the idea of spectral tempering, i.e. the spectrum of the Gaussian process is modified depending on a user defined tempering function. The result is a non-stationary Gaussian process, which induces different amount of smoothness in different areas. In contrast to most other schemes for spatially-varying registration, our approach does not require any change in the registration algorithm itself, but only affects the prior model. Thus we can obtain spatially-varying versions of any registration method whose deformation prior can be formulated in terms of a Gaussian process. This includes for example most spline-based models, but also statistical shape or deformation models. We present results for the problem of atlas based skull-registration of cone beam CT images. These datasets are difficult to register as they contain a large amount of noise around the teeth. We show that with our method we can become robust against noise, but still obtain accurate correspondence where the data is clean.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Thomas Gerig
    • 1
  • Kamal Shahim
    • 2
  • Mauricio Reyes
    • 2
  • Thomas Vetter
    • 1
  • Marcel Lüthi
    • 1
  1. 1.University of BaselBaselSwitzerland
  2. 2.University of BernBernSwitzerland

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