This document describes an affine transformation algorithm as an additional feature for landmark based registration in ITK www.itk.org. The algorithm is based on the paper by Spath, H [1]. The author derives a set of linear equations from paired landmarks and [...]

As demonstrated by the example videos accompanying this submission of the multiresolution implementation of Spherical Demons, the registration appears reasonable. However, we are still unable to replicate the warps from the stable and well verified [...]

In radiotherapy (RT) for tumor delineation and diagnostics, complementary information of multi-modal images is used. Using high ionizing radiation, the accuracy of registered volume data is crucial; therefore a reliable and robust evaluation method for [...]