Conformal Metric Optimization on Surface (CMOS) for Deformation and Mapping in Laplace-Beltrami Embedding Space

  • Yonggang Shi
  • Rongjie Lai
  • Raja Gill
  • Daniel Pelletier
  • David Mohr
  • Nancy Sicotte
  • Arthur W. Toga
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6892)

Abstract

In this paper we develop a novel technique for surface deformation and mapping in the high-dimensional Laplace-Beltrami embedding space. The key idea of our work is to realize surface deformation in the embedding space via optimization of a conformal metric on the surface. Numerical techniques are developed for computing derivatives of the eigenvalues and eigenfunctions with respect to the conformal metric, which is then applied to compute surface maps in the embedding space by minimizing an energy function. In our experiments, we demonstrate the robustness of our method by applying it to map hippocampal atrophy of multiple sclerosis patients with depression on a data set of 109 subjects. Statistically significant results have been obtained that show excellent correlation with clinical variables. A comparison with the popular SPHARM tool has also been performed to demonstrate that our method achieves more significant results.

Keywords

Weight Function Multiple Sclerosis Patient Triangular Mesh Surface Mapping Hippocampal Atrophy 
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 2011

Authors and Affiliations

  • Yonggang Shi
    • 1
  • Rongjie Lai
    • 2
  • Raja Gill
    • 3
  • Daniel Pelletier
    • 4
  • David Mohr
    • 5
  • Nancy Sicotte
    • 6
  • Arthur W. Toga
    • 1
  1. 1.Lab of Neuro ImagingUCLA School of MedicineLos AngelesUSA
  2. 2.Dept. of MathematicsUniversity of Southern CaliforniaLos AngelesUSA
  3. 3.Dept. of NeurologyUCLA School of MedicineLos AngelesUSA
  4. 4.Department of NeurologyYale School of MedicineNew HavenUSA
  5. 5.Department of Preventive MedicineNorthwestern University, Feinberg School of MedicineChicagoUSA
  6. 6.Cedar Sinai Medical CenterLos AngelesUSA

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