Analysis of the α -Renyi entropy and its application for medical image registration

被引:2
作者
Pan M. [1 ]
Zhang F. [1 ]
机构
[1] College of Computer Science and Technology, Hunan University of Arts and Science, Changde
关键词
Entropy; Image registration; Medical image; α -Renyi mutual information;
D O I
10.4015/S101623721750020X
中图分类号
学科分类号
摘要
In this paper, the α-Renyi entropy and α-Renyi-based mutual information (RMI) are first introduced. Then the influence of the parameter α on the curve of the RMI and the computational load of image registration are discussed and analyzed to explore the appropriate parameter ranges. Finally, the RMI with the appropriate parameter α is viewed as the similarity measure between the reference and floating images. In the experiments, the Simplex method is chosen as the multi-parameter optimization one. The experimental results reveal that the proposed method has low computational load, fast registration and good registration accuracy. It is adapted to both mono-modality and multi-modality image registrations. © 2017 National Taiwan University.
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