An airway tree-shape model for geodesic airway branch labeling

Aasa Feragen, Pechin Chien Pau Lo, Vladlena Gorbunova, Mads Nielsen, Asger Dirksen, Joseph M. Reinhardt, Francois Bernard Lauze, Marleen de Bruijne

Publikation: Bidrag til bog/antologi/rapportKonferencebidrag i proceedingsForskningpeer review

Abstract

We present a mathematical airway tree-shape framework
where airway trees are compared using geodesic distances. The framework
consists of a rigorously dened shape space for treelike shapes,
endowed with a metric such that the shape space is a geodesic metric
space. This means that the distance between two tree-shapes can be realized
as the length of the geodesic, or shortest deformation, connecting
the two shapes. By computing geodesics between airway trees, as well as
the corresponding airway deformation, we generate airway branch correspondences.
Correspondences between an unlabeled airway tree and a set
of labeled airway trees are combined with a voting scheme to perform
automatic branch labeling of segmented airways from the challenging
EXACT'09 test set. In spite of the varying quality of the data, we obtain
robust labeling results.
OriginalsprogEngelsk
TitelMFCA 2011 : 3rd MICCAI Workshop on Mathematical Foundations of Computational Anatomy
RedaktørerXavier Pennec, Sarang Joshi, Mads Nielsen
Antal sider12
Publikationsdato2011
Sider123-134
StatusUdgivet - 2011
Begivenhed3rd MICCAI Workshop on Mathematical Foundations of Computational Anatomy - Westin Harbour Castle, Toronto, Canada
Varighed: 22 sep. 201122 sep. 2011
Konferencens nummer: 3

Konference

Konference3rd MICCAI Workshop on Mathematical Foundations of Computational Anatomy
Nummer3
LokationWestin Harbour Castle
Land/OmrådeCanada
ByToronto
Periode22/09/201122/09/2011

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