Optical Flow on Evolving Sphere-Like Surfaces
Optimization and Control
2015-06-11 v1 Computer Vision and Pattern Recognition
Abstract
In this work we consider optical flow on evolving Riemannian 2-manifolds which can be parametrised from the 2-sphere. Our main motivation is to estimate cell motion in time-lapse volumetric microscopy images depicting fluorescently labelled cells of a live zebrafish embryo. We exploit the fact that the recorded cells float on the surface of the embryo and allow for the extraction of an image sequence together with a sphere-like surface. We solve the resulting variational problem by means of a Galerkin method based on vector spherical harmonics and present numerical results computed from the aforementioned microscopy data.
Keywords
Cite
@article{arxiv.1506.03358,
title = {Optical Flow on Evolving Sphere-Like Surfaces},
author = {Lukas F. Lang and Otmar Scherzer},
journal= {arXiv preprint arXiv:1506.03358},
year = {2015}
}