Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1146476 | Journal of Multivariate Analysis | 2010 | 16 Pages |
Abstract
A method for the use of persistent homology in the statistical analysis of landmark-based shape data is given. Three-dimensional landmark configurations are used as input for separate filtrations, persistent homology is performed, and persistence diagrams are obtained. Groups of configurations are compared using distances between persistence diagrams combined with dimensionality reduction methods. A three-dimensional landmark-based data set is used from a longitudinal orthodontic study, and the persistent homology method is able to distinguish clinically relevant treatment effects. Comparisons are made with the traditional landmark-based statistical shape analysis methods of Dryden and Mardia, and Euclidean Distance Matrix Analysis.
Related Topics
Physical Sciences and Engineering
Mathematics
Numerical Analysis
Authors
Jennifer Gamble, Giseon Heo,