96 Citations
Singular solutions, momentum maps and computational anatomy
- Mathematics
- 2006
This paper describes the variational formulation of template matching problems of computational anatomy (CA); introduces the EPDiff evolution equation in the context of an analogy between CA and…
8 M ay 2 00 6 Singular solutions , momentum maps and computational anatomy
- Physics
- 2006
This paper describes the variational formulation of template matching problems of computational anatomy (CA); introduces the EPDiff evolution equation in the context of an analogy between CA and…
Registration of Anatomical Images Using Paths of Diffeomorphisms Parameterized with Stationary Vector Field Flows
- MathematicsInternational Journal of Computer Vision
- 2009
The stationary parameterization is included for diffeomorphic registration in the LDDMM framework and the variational problem related to this registration scenario is formulated and the associated Euler-Lagrange equations are derived.
N -particle dynamics of the Euler equations for planar diffeomorphisms
- Mathematics
- 2005
The Euler equations associated with diffeomorphism groups have received much recent study because of their links with fluid dynamics, computer vision, and mechanics. In this article, we consider the…
Registration of anatomical images using geodesic paths of diffeomorphisms parameterized with stationary vector fields
- Mathematics2007 IEEE 11th International Conference on Computer Vision
- 2007
This article formulate the variational problem related to this registration scenario and derive the associated Euler-Lagrange equations, and evaluates the performance of the non-stationary vs the stationary parameterizations in real and synthetic 3D-MRI datasets.
Reduction by Lie Group Symmetries in Diffeomorphic Image Registration and Deformation Modelling
- MathematicsSymmetry
- 2015
This work surveys the role of reduction by symmetry in the large deformation diffeomorphic metric mapping framework for registration of a variety of data types and describes these models in a common theoretical framework that draws on links between the registration problem and geometric mechanics.
Langevin Equations for Landmark Image Registration with Uncertainty
- MathematicsSIAM J. Imaging Sci.
- 2017
A Langevin equation is formulated for looking at small random perturbations of a registration of images parameterised by landmarks and a Bayesian framework is used to compute a posterior distribution for the registration, and also to formulate an average of multiple sets of landmarks.
Constrained Diffeomorphic Shape Evolution
- MathematicsFound. Comput. Math.
- 2012
We design optimal control strategies in spaces of diffeomorphisms and shape spaces in which the Eulerian velocities of the evolving deformations are constrained to belong to a suitably chosen…
References
SHOWING 1-10 OF 109 REFERENCES
The metric spaces, Euler equations, and normal geodesic image motions of computational anatomy
- MathematicsProceedings 2003 International Conference on Image Processing (Cat. No.03CH37429)
- 2003
The purpose of this paper is to examine the generation of the geodesics associated with the metric from several points of view, the first the Euler equation describing the Geodesic diffeomorphic flow, and the second the variational formulation of theGeodesic in terms of the minimizing flow of vector fields which generate them.
On the metrics and euler-lagrange equations of computational anatomy.
- MathematicsAnnual review of biomedical engineering
- 2002
Current experimental results from the Toga & Thompson group in growth, the Van Essen group in macaque and human cortex mapping, and the Csernansky group in hippocampus mapping for neuropsychiatric studies in aging and schizophrenia are shown.
Geodesic Shooting for Computational Anatomy
- MathematicsJournal of Mathematical Imaging and Vision
- 2005
It is shown that this momentum can be also used for describing a deformation of given visual structures, like points, contours or images, and that, it has the same dimension as the described object, as a consequence of the normal momentum constraint the authors introduce.
Computational anatomy: an emerging discipline
- Mathematics
- 1998
This paper studies mathematical methods in the emerging new discipline of Computational Anatomy. Herein we formalize the Brown/Washington University model of anatomy following the global pattern…
Momentum maps and measure-valued solutions (peakons, filaments, and sheets) for the EPDiff equation
- Mathematics
- 2005
This paper is concerned with the dynamics of measure-valued solutions of the EPDiff equations, standing for the Euler-Poincare equations associated with the diffeomorphism group (of ℝn or of an…
Landmark Matching via Large Deformation Diffeomorphisms on the Sphere
- MathematicsJournal of Mathematical Imaging and Vision
- 2004
A methodology and algorithm for generating diffeomorphisms of the sphere onto itself, given the displacements of a finite set of template landmarks, has application in brain mapping, where surface data is typically mapped to the sphere as a common coordinate system.
Topological methods in hydrodynamics
- Mathematics
- 1998
A group theoretical approach to hydrodynamics considers hydrodynamics to be the differential geometry of diffeomorphism groups. The principle of least action implies that the motion of a fluid is…
Group Actions, Homeomorphisms, and Matching: A General Framework
- MathematicsInternational Journal of Computer Vision
- 2004
Left-invariant metrics are defined on the product G × I thus allowing the generation of transformations of the background geometry as well as the image values, and structural generation in which image values are changed supporting notions such as tissue creation in carrying one image to another.