A hierarchical elastic registration scheme based on deformable segmentation.

In this paper a hierarchical scheme is presented for contour-based elastic image registration. An improved deformable model is used to simultaneously segment and register feature from multiple images. The objects in different images are segmented by evolving a single contour and meanwhile the parameters of affine registration transformation are found out. After that, a contour-constrained elastic registration is applied to register the images correctly. The experimental results indicate that the proposed approach is effective to segment and register medical images.