Averaging Centerlines: Mean Shift on Paths

Authors:
Theo Walsum;Michiel Schaap;Coert T. Metz;Alina G. Giessen;Wiro J. Niessen
Affiliations:
Biomedical Imaging Group Rotterdam Departments of Radiology and Medical Informatics, ,;Biomedical Imaging Group Rotterdam Departments of Radiology and Medical Informatics, ,;Biomedical Imaging Group Rotterdam Departments of Radiology and Medical Informatics, ,;Hemodynamics Laboratory Department of Biomedical Engineering Erasmus MC, University Medical Center Rotterdam,;Biomedical Imaging Group Rotterdam Departments of Radiology and Medical Informatics, ,
Venue:
MICCAI '08 Proceedings of the 11th international conference on Medical Image Computing and Computer-Assisted Intervention - Part I
Year:
2008

Citing 3
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Abstract

Generation of a reference standard from multiple manually annotated datasets is a non-trivial problem. This paper discusses the weighted averaging of 3D open curves, which we used to generate a reference standard for vessel tracking data. We show how weighted averaging can be implemented by applying the Mean Shift algorithm to paths, and discuss the details of our implementation. Our approach can handle cases where the observer centerlines take different branches in a natural way. The method has been evaluated on synthetic data, and has been used to generate reference centerlines for evaluation of vessel tracking algorithms.