49 citations · 63 across the 4 of their papers we have counts for
4 papers
Nilpotent Approximations of Sub-Riemannian Distances for Fast Perceptual Grouping of Blood Vessels in 2D and 3D
Erik J. Bekkers, Da Chen, Jorg M. Portegies
We propose an efficient approach for the grouping of local orientations (points on vessels) via nilpotent approximations of sub-Riemannian distances in the 2D and 3D roto-translati…
Optimal Paths for Variants of the 2D and 3D Reeds-Shepp Car with Applications in Image Analysis
Remco Duits, Stephan P. L. Meesters, Jean-Marie Mirebeau +1
We present a PDE-based approach for finding optimal paths for the Reeds-Shepp car. In our model we minimize a (data-driven) functional involving both curvature and length penalizat…
Improving Fiber Alignment in HARDI by Combining Contextual PDE Flow with Constrained Spherical Deconvolution
J. M. Portegies, R. H. J. Fick, G. R. Sanguinetti +3
We propose two strategies to improve the quality of tractography results computed from diffusion weighted magnetic resonance imaging (DW-MRI) data. Both methods are based on the sa…
New Approximation of a Scale Space Kernel on SE(3) and Applications in Neuroimaging
J. M. Portegies, G. R. Sanguinetti, S. P. L Meesters +1
We provide a new, analytic kernel for scale space filtering of dMRI data. The kernel is an approximation for the Green's function of a hypo-elliptic diffusion on the 3D rigid body…