000003352 001__ 3352
000003352 005__ 20190219081243.0
000003352 037__ $$aINPRO--2009-082
000003352 041__ $$aeng
000003352 100__ $$aHernández, Mónica
000003352 245__ $$aComparing algorithms for diffeomorphic registration: Stationary LDDMM and Diffeomorphic Demons
000003352 260__ $$c2009-09-15
000003352 300__ $$amult. p
000003352 520__ $$aThe stationary parameterization of diffeomorphisms is being increasingly used in computational anatomy. In certain applications it provides similar results to th e non-stationary parameterization alleviating the computational charge. With this characterization for diffeomorphisms, two different registration algor ithms have been recently proposed: stationary LDDMM and diffeomorphic Demons. To our knowledge, their theoretical and practical differences have not been anal yzed yet. In this article we provide a comparison between both algorithms in a common fram ework. To this end, we have studied the differences in the elements of both registratio n scenarios. We have analyzed the sensitivity of the regularization parameters in the smoothn ess of the final transformations and compared the performance of the registration re sults. Moreover, we have studied the potential of both algorithms for the computation o f essential operations for further statistical analysis. We have found that both methods have comparable performance in terms of image ma tching although the transformations are qualitatively different in some cases. Diffeomo rphic Demons shows a slight advantage in terms of computational time. However, it does not pr ovide as stationary LDDMM the vector field in the tangent space needed to compute statist ics or exact inverse transformations.
000003352 540__ $$9info:eu-repo/semantics/openAccess$$aEsta obra está sujeta a una licencia de uso Creative Commons. Se permite la reproducción total o parcial, la distribución, la comunicación pública de la obra y la creación de obras derivadas, siempre que no sea con finalidades comerciales, y sempre que se reconzca la autoria de la obra original.$$uhttps://creativecommons.org/licenses/by-nc/4.0/
000003352 6531_ $$aComputational Anatomy
000003352 6531_ $$adiffeomorphic registration
000003352 6531_ $$astationary parameterization
000003352 6531_ $$astationary LDDMM
000003352 6531_ $$adiffeomorphic Demons
000003352 700__ $$aPennec, Xavier
000003352 700__ $$aOlmos Gassó, Salvador
000003352 8560_ $$fmhg@unizar.es
000003352 8564_ $$s364241$$uhttps://zaguan.unizar.es/record/3352/files/INPRO--2009-082.pdf$$zArchivo asociado
000003352 9102_ $$a$$bInformática e Ingeniería de Sistemas
000003352 980__ $$aPREPRINT