In order to make people have a broad understanding to the application of medical image deformable registration based on models in image guided radiotherapy

The recent publications that research the application of deformable registration in image guided radiotherapy are concisely classified and summed up according to the three major steps of deformable registration: the selection of deformable model and feature space

the selection of similarity metrics and space optimization

as well as the verification of deformable registrationThe statistics of classification shows that the research directions of deformable image registration which basing to ensure the accuracy and precision of registration

are to combine different kinds of methods

such as multi-resolution

multilevel deformable registration

using parallel computing

and the combination of different kinds of optimization algorithms and so on

in order to shorten the registration time and to meet the clinical demands