Automatic shape model building based on principal geodesic analysis bootstrapping

Medical Image Analysis
E B DamStephen M Pizer

Abstract

We present a novel method for automatic shape model building from a collection of training shapes. The result is a shape model consisting of the mean model and the major modes of variation with a dense correspondence map between individual shapes. The framework consists of iterations where a medial shape representation is deformed into the training shapes followed by computation of the shape mean and modes of shape variation. In the first iteration, a generic shape model is used as starting point - in the following iterations in the bootstrap method, the resulting mean and modes from the previous iteration are used. Thereby, we gradually capture the shape variation in the training collection better and better. Convergence of the method is explicitly enforced. The method is evaluated on collections of artificial training shapes where the expected shape mean and modes of variation are known by design. Furthermore, collections of real prostates and cartilage sheets are used in the evaluation. The evaluation shows that the method is able to capture the training shapes close to the attainable accuracy already in the first iteration. Furthermore, the correspondence properties measured by generality, specificity, and compactness are i...Continue Reading

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Citations

Jun 30, 2005·Medical Physics·Stephen M PizerEdward L Chaney
Jan 28, 2014·BMC Medical Imaging·Jörn SchulzFred Godtliebsen
Jul 28, 2009·Computer Methods and Programs in Biomedicine·Yili FuJimin Liu
Jun 3, 2011·IEEE Transactions on Medical Imaging·Yipeng HuDean C Barratt
Mar 24, 2011·IEEE Transactions on Medical Imaging·Alessandro CrimiJon Sporring
Mar 2, 2010·Medical Image Analysis·Arish A QaziErik B Dam
Jun 19, 2013·Computers in Biology and Medicine·Dan R JørgensenMartin Lillholm
Mar 2, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Erik B DamMorten Karsdal
May 31, 2013·Physiological Measurement·A ZifanB E Chapman
Apr 1, 2013·Cartilage·Dan R JørgensenErik B Dam

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