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Barycentric Subspace Analysis: A New Symmetric Group-Wise Paradigm for Cardiac Motion Tracking [chapter]

Marc-Michel Rohé, Maxime Sermesant, Xavier Pennec
2016 Lecture Notes in Computer Science  
We first show that the barycentric coordinates -the coefficients of the projection of the motion during a cardiac sequence -define a meaningful signature for group-wise analysis of dynamics and can efficiently  ...  Then, we use the barycentric template as a prior for regularization in cardiac motion tracking, efficiently reducing the error of tracking between end-systole and end-diastole by almost 40% as well as  ...  Conclusion A new symmetric group-wise paradigm to study cardiac motion was proposed.  ... 
doi:10.1007/978-3-319-46726-9_35 fatcat:fxewjbcbxbhsjnndcqfgcuhfs4

Low-dimensional representation of cardiac motion using Barycentric Subspaces: A new group-wise paradigm for estimation, analysis, and reconstruction

Marc-Michel Rohé, Maxime Sermesant, Xavier Pennec
2018 Medical Image Analysis  
A mean point (image in green) is computed and the statistical analysis for each data is done with respect to this point. The reference is not a point of the data.  ...  The subspace is not built based on a central point but each of the data is analyzed with respect to a set of references (green). multi-references method using Barycentric Subspaces performs better than  ...  Low-Dimensional Representation of Cardiac Motion Using Barycentric Subspaces: a New Group-Wise Paradigm for Estimation, Analysis, and Reconstruction Marc-Michel Rohé * , Maxime Sermesant, Xavier Pennec  ... 
doi:10.1016/ pmid:29324241 fatcat:6naiek5tjrfx5gwc74mhqngdm4

Learning a Generative Motion Model from Image Sequences based on a Latent Motion Matrix [article]

Julian Krebs, Hervé Delingette, Nicholas Ayache, Tommaso Mansi
2021 arXiv   pre-print
We propose to learn a probabilistic motion model from a sequence of images for spatio-temporal registration.  ...  More precisely, the motion matrix allows to transport the recovered motion from one subject to another simulating for example a pathological motion in a healthy subject without the need for inter-subject  ...  [3] introduced a parameterization, the Barycentric Subspaces, for cardiac motion analysis.  ... 
arXiv:2011.01741v2 fatcat:fvtbu7y3ejfo3ieb5ji7oaclke

Computational Modeling and Control for Personalized Neuroprosthetics and Rehabilitation Habilitation à Diriger des Recherches présentée et soutenue publiquement par

Mitsuhiro Hayashibe, Académie De Montpellier, Université De Montpellier, Mitsuhiro Hayashibe
2015 unpublished
Cross-validation with a new motion set Cross-validation with a new motion set was done to evaluate the identified SESC model in terms of CoM estimation.  ...  process for a new dynamic condition.  ... 

Scalable Biophysical Simulations of the Neuromuscular System [article]

Benjamin Maier
2021 arXiv   pre-print
It can serve as a building block to set up comprehensive models for more organs in the musculoskeletal system.  ...  Computer simulations with detailed biophysical models provide a non-invasive tool to interpret EMG signals and gain new insights into the system.  ...  The new fibers are computed by barycentric interpolation.  ... 
arXiv:2107.07104v1 fatcat:i5simmhifbgjdpcsm6l73vc3pe

Proceedings, MSVSCC 2014

Tao Ju and Powei Feng for their support in this research. VMASC Track Acknowledgements The team would like to thank Dr.  ...  Acknowledgements Yaohang Li ACKNOWLEDGEMENTS The authors would like to thank Newport News Industrial (NNI) for their participation and the valued input provided by James Whitley, Brian Bangs, and Erin  ...  The mass d i is associated to a vertex i and the w ij are the symmetric edge weights.  ... 
doi:10.25776/zrj4-5c48 fatcat:fjlzmdojhvf2jcqdqmj574vnv4