4 papers
Learning landmark geodesics using Kalman ensembles
Andreas Bock, Colin J. Cotter
We study the problem of diffeomorphometric geodesic landmark matching where the objective is to find a diffeomorphism that via its group action maps between two sets of landmarks.…
A note on error analysis for a nonconforming discretisation of the tri-Helmholtz equation with singular data
Andreas Bock, Colin Cotter
We apply the nonconforming discretisation of Wu and Xu (2019) to the tri-Helmholtz equation on the plane where the source term is a functional evaluating the test function on a one…
Space-time metamorphosis
Andreas Bock, Colin Cotter
We study the problem of registering images. The framework we use is metamorphosis and we construct a variational Eulerian space-time setting and pose the registration problem as an…
Selective metamorphosis for growth modelling with applications to landmarks
Andreas Bock, Alexis Arnaudon, Colin Cotter
We present a framework for shape matching in computational anatomy allowing users control of the degree to which the matching is diffeomorphic. This control is given as a function…