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Title: Hierarchical elastic registration of human brain images based on wavelet decomposition
Authors: Wang, X
Feng, DD
Keywords: Brain
Computerised tomography
Image matching
Image registration
Image segmentation
Medical image processing
Wavelet transforms
Issue Date: 2004
Source: Proceedings of the International Symposium on Intelligent Multimedia, Video and Speech Processing (ISIMP’2004), Hong Kong, 20-22 Oct. 2004, p. 731-734 How to cite?
Abstract: Wavelets have been studied and applied in the multimedia and video processing community, including some areas in medical imaging, however, wavelet-based medical image registration has not been explored properly. In this paper, we propose an hierarchical registration method based on wavelet decomposition. Firstly, based on the wavelets, the images are decomposed into subbands which compose the registration pyramid; then, in each hierarchy, the affine registration based on mutual information is performed and the results of the current registration are used as the initial guess for the next hierarchy; finally, to further improve the registration performance, the local elastic registration is carried out. The proposed algorithm has been validated by experiments on clinical tomographic images and our experimental results demonstrate the the proposed method is of efficiency and good accuracy.
ISBN: 0-7803-8687-6
DOI: 10.1109/ISIMP.2004.1434168
Appears in Collections:Conference Paper

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