AUTOMATIC ELASTIC MEDICAL IMAGE REGISTRATION BASED ON IMAGE INTENSITY-Reference-Cited by-同舟云学术

AUTOMATIC ELASTIC MEDICAL IMAGE REGISTRATION BASED ON IMAGE INTENSITY

Published:2005-04 Issue:02 Volume:05 Page:351-369
ISSN:0219-4678
Container-title:International Journal of Image and Graphics
language:en
Short-container-title:Int. J. Image Grap.

Author:

WANG XIUYING¹²,FENG DAVID DAGAN¹³

Affiliation:

1. Biomedical and Multimedia Information Technology (BMIT) Group, School of Information Technologies, F09, The University of Sydney, NSW 2006, Australia

2. School of Computer Science and Technology, Heilongjiang University, Harbin 150080, P.R. China

3. Center for Multimedia Signal Processing, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong, China

Abstract

An automatic elastic medical image registration approach is proposed, based on image intensity. The algorithm is divided into two steps. In Step 1, global affine registration is first used to establish an initial guess and the resulting images can be assumed to have only small local elastic deformations. The mapped images are then used as inputs in Step 2, during which, the study image is modeled as elastic sheet by being divided into sub-images. Moving the individual sub-image in the reference image, the local displacement vectors are found and the global elastic transformation is achieved by assimilating all of the local transformation into a continuous transformation. The algorithm has been validated by simulated data, noisy data and clinical tomographic data. Both experiments and theoretical analysis have demonstrated that the proposed algorithm has a superior computational performance and can register images automatically with an improved accuracy.

Publisher

World Scientific Pub Co Pte Lt

Subject

Computer Graphics and Computer-Aided Design,Computer Science Applications,Computer Vision and Pattern Recognition

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0219467805001793

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