Nicholas Ayache

A Riemannian Framework for Tensor Computing

Geometric Means in a Novel Vector Space Structure on Symmetric Positive‐Definite Matrices

no abstract

A Log-Euclidean Framework for Statistics on Diffeomorphisms

In this article, we focus on the computation of statistics of invertible geometrical deformations (i.e., diffeomorphisms), based on the generalization to this type of data of th...

Retrospective evaluation of intersubject brain registration

Although numerous methods to register brains of different individuals have been proposed, no work has been done, as far as we know, to evaluate and objectively compare the perfo...

Fast segmentation, tracking, and analysis of deformable objects

The authors present a physically based deformable model which can be used to track and analyze non-rigid motion of dynamic structures in time sequences of 2-D or 3-D medical ima...

Medical image analysis: progress over two decades and the challenges ahead

The analysis of medical images has been woven into the fabric of the pattern analysis and machine intelligence (PAMI) community since the earliest days of these Transactions. In...

The correlation ratio as a new similarity measure for multimodal image registration