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Showing posts with label demons. Show all posts
Showing posts with label demons. Show all posts

Friday, December 2, 2011

Some deformation demons methods

One of the most used recently method for the deformable registration is demons method. In this article, I show some results of using demons method implemented in the Itk 4.0.

Sunday, November 27, 2011

Demons : a non-rigid deformable registration

Demons is a method of non-rigid deformable registration.

The basic idea of Demons is to use the sum of square difference (SSD) of intensity for deforming image. Demons uses optical flow to calculate forces on the each point of image. The force proposed by Thirion corresponds to a second order gradient descent on SSD criterion.