Active shape models—their training and application
Computer Vision and Image Understanding
An Adaptive-Focus Deformable Model Using Statistical and Geometric Information
IEEE Transactions on Pattern Analysis and Machine Intelligence
Elastic Matching Using a Deformation Sphere
MICCAI '01 Proceedings of the 4th International Conference on Medical Image Computing and Computer-Assisted Intervention
Localized maximum entropy shape modelling
IPMI'07 Proceedings of the 20th international conference on Information processing in medical imaging
Subject specific shape modeling with incremental mixture models
MIAR'10 Proceedings of the 5th international conference on Medical imaging and augmented reality
A locally deformable statistical shape model
MLMI'11 Proceedings of the Second international conference on Machine learning in medical imaging
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Different methods were evaluated to enlarge artificially a training set which is used to build a statistical shape model. In this work, the shape model was built from MR data of 25 subjects and it consisted of ventricles, atria and epicardium. The method adding smooth non-rigid deformations to original training set examples produced the best results. The results indicated also that artificial deformation modes model better an unseen object than an equal number of standard PCA modes generated from original data.