Medical image registration based on equivalent meridian plane

Authors:
Zhentai Lu;Minghui Zhang;Qianjin Feng;Pengcheng Shi;Wufan Chen
Affiliations:
School of Biomedical Engineering, Southern Medical University, Guang Zhou, China;School of Biomedical Engineering, Southern Medical University, Guang Zhou, China;School of Biomedical Engineering, Southern Medical University, Guang Zhou, China;School of Biomedical Engineering, Southern Medical University, Guang Zhou, China;School of Biomedical Engineering, Southern Medical University, Guang Zhou, China
Venue:
ICIAR'07 Proceedings of the 4th international conference on Image Analysis and Recognition
Year:
2007

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Abstract

This paper presents a new 3-D image registration method based on the equivalent meridian plane and mutual information,named as EMP-MI algorithm. Compared with MI based registration method using the whole volume intensity information, our approach utilizes the equivalent meridian plane information. First, principal component analysis (PCA) is applied to determine the equivalent meridian plane. The volume is roughly aligned by taking advantage of the EMP. Second, registration is refined via maximizing the MI of the EMP. We evaluate the effectiveness of the EMP-MI approach by applying it to the simulated and real brain image data (CT, MR, PET, and SPECT). The experimental results indicate that the algorithm is effective in reducing computation time as well as in helping to avoid local minima.