publication . Other literature type . Article . 2004

Geodesic estimation for large deformation anatomical shape averaging and interpolation

brian avants;
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  • Published: 01 Jan 2004
  • Publisher: Elsevier BV
Abstract
The goal of this research is to promote variational methods for anatomical averaging that operate within the space of the underlying image registration problem. This approach is effective when using the large deformation viscous framework, where linear averaging is not valid, or in the elastic case. The theory behind this novel atlas building algorithm is similar to the traditional pairwise registration problem, but with single image forces replaced by average forces. These group forces drive an average transport ordinary differential equation allowing one to estimate the geodesic that moves an image toward the mean shape configuration. This model gives large de...
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