Hyperbolic harmonic brain surface registration with curvature-based landmark matching Conference

Shi, R, Zeng, W, Su, Z et al. (2013). Hyperbolic harmonic brain surface registration with curvature-based landmark matching . Lecture Notes in Computer Science, 7917 LNCS 159-170. 10.1007/978-3-642-38868-2_14

cited authors

  • Shi, R; Zeng, W; Su, Z; Wang, Y; Damasio, H; Lu, Z; Yau, ST; Gu, X

abstract

  • Brain Cortical surface registration is required for inter-subject studies of functional and anatomical data. Harmonic mapping has been applied for brain mapping, due to its existence, uniqueness, regularity and numerical stability. In order to improve the registration accuracy, sculcal landmarks are usually used as constraints for brain registration. Unfortunately, constrained harmonic mappings may not be diffeomorphic and produces invalid registration. This work conquer this problem by changing the Riemannian metric on the target cortical surface to a hyperbolic metric, so that the harmonic mapping is guaranteed to be a diffeomorphism while the landmark constraints are enforced as boundary matching condition. The computational algorithms are based on the Ricci flow method and hyperbolic heat diffusion. Experimental results demonstrate that, by changing the Riemannian metric, the registrations are always diffeomorphic, with higher qualities in terms of landmark alignment, curvature matching, area distortion and overlapping of region of interests. © 2013 Springer-Verlag.

authors

publication date

  • July 12, 2013

published in

Digital Object Identifier (DOI)

start page

  • 159

end page

  • 170

volume

  • 7917 LNCS