Authors:
Zhixiong Zhang
and
Xuan Yang
Affiliation:
College of Information Engineering, Shenzhen University, China
Keyword(s):
Image registration, Compact support, Elastic registration, Bending energy, Biharmonic equation.
Related
Ontology
Subjects/Areas/Topics:
Applications and Services
;
Biomedical Engineering
;
Biomedical Signal Processing
;
Computer Vision, Visualization and Computer Graphics
;
Medical Image Detection, Acquisition, Analysis and Processing
Abstract:
Thin plate spline (TPS) and compact support radial basis functions (CSRBF) are well-known and successful tools in medical image elastic registration base on landmark. TPS minimizes the bending energy of the whole image. However, in real application, such scheme would deform the image globally when deformation is local. Although CSRBF can limit the effect of the deformation locally, it cost more bending energy which means more information was lost. A new radial basic function named ‘Compact Support Thin Plate Spline Radial Basic Function’ (CSTPF) has been proposed in this paper. It costs less bending energy than CSRBF in deforming image locally and its global deformation effect is similar to TPS. Numerous experimental results show that CSTPF performs outstanding in both global and local image deformation.