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A Symmetric 4D Registration Algorithm for Respiratory Motion Modeling

  • Huanhuan Xu
  • Xin Li
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8150)

Abstract

We propose an effective 4D image registration algorithm for dynamic volumetric lung images. The registration will construct a deforming 3D model with continuous trajectory and smooth spatial deformation, and the model interpolates the interested region in the 4D (3D+T) CT images. The resultant non-rigid transformation is represented using two 4D B-spline functions, indicating a forward and an inverse 4D parameterization respectively. The registration process solves these two functions by minimizing an objective function that penalizes intensity matching error, feature alignment error, spatial and temporal non-smoothness, and inverse inconsistency. We test our algorithm for respiratory motion estimation on public benchmarks and on clinic lung CT data. The experimental results demonstrate the efficacy of our algorithm.

Keywords

4D Image Registration Respiratory Motion Modeling 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Huanhuan Xu
    • 1
  • Xin Li
    • 1
  1. 1.School of Electrical Engineering and Computer ScienceLouisiana State UniversityUSA

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