Optic Flow Using Multi-scale Anchor Points

Authors:
Pieter Dorst;Bart Janssen;Luc Florack;Bart M. Haar Romeny
Affiliations:
Eindhoven University of Technology, Eindhoven, The Netherlands 5600 MB;Eindhoven University of Technology, Eindhoven, The Netherlands 5600 MB;Eindhoven University of Technology, Eindhoven, The Netherlands 5600 MB;Eindhoven University of Technology, Eindhoven, The Netherlands 5600 MB
Venue:
CAIP '09 Proceedings of the 13th International Conference on Computer Analysis of Images and Patterns
Year:
2009

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3D winding number: theory and application to medical imaging

Journal of Biomedical Imaging - Special issue on modern mathematics in biomedical imaging

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Abstract

We introduce a new method to determine the flow field of an image sequence using multi-scale anchor points. These anchor points manifest themselves in the scale-space representation of an image. The novelty of our method lies largely in the fact that the relation between the scale-space anchor points and the flow field is formulated in terms of soft constraints in a variational method. This leads to an algorithm for the computation of the flow field that differs fundamentally from previously proposed ones based on hard constraints. We show a significant performance increase when our method is applied to the Yosemite image sequence, a standard and well-established benchmark sequence in optic flow research.