Survey of Non-Rigid Registration Tools in Medicine

Non-Rigid Image Registration

An important hypothesis of the research reported in this paper is that dynamic space warping (DSW), a dynamic programming (DP) technique (Bellman 1965, Brown 1996), can be effectively used for object matching and for inference of the image registration warping function. For this end, a novel, robust, and efficient method for non-rigid image registration using DSW in the “length–code” domain is ...

Compensation of brain shift during surgery using non-rigid registration of MR and ultrasound images

Background: Surgery and accurate removal of the brain tumor in the operating room and after opening the scalp is one of the major challenges for neurosurgeons due to the removal of skull pressure and displacement and deformation of the brain tissue. This displacement of the brain changes the location of the tumor relative to the MR image taken preoperatively. Methods: This study, which is done...

Non-Rigid Morphological Image Registration

Towards fast non-rigid registration

A fast multiscale and multigrid method for the matching of images in 2D and 3D is presented. Especially in medical imaging this problem denoted as the registration problem is of fundamental importance in the handling of images from multiple image modalities or of image time series. The paper restricts to the simplest matching energy to be minimized, i.e., , where , are the intensity maps of the...

Non-rigid Registration Using Morphons

The Morphon, a non-rigid registration method is presented and applied to a number of registration applications. The algorithm takes a protoype image (or volume) and morphs it into a target image using an iterative, multi-resolution technique. The deformation process is done in three steps: displacement estimation, deformation field accumulation and deformation. The framework could be described ...