Mutual information-based CT-MR brain image registration using generalized partial volume joint histogram estimation

2003 ◽  
Vol 22 (9) ◽  
pp. 1111-1119 ◽  
Author(s):  
Hua-mei Chen ◽  
P.K. Varshney
2000 ◽  
Vol 19 (2) ◽  
pp. 94-102 ◽  
Author(s):  
M. Holden ◽  
D.L.G. Hill ◽  
E.R.E. Denton ◽  
J.M. Jarosz ◽  
T.C.S. Cox ◽  
...  

2015 ◽  
Vol 46 ◽  
pp. 277-290 ◽  
Author(s):  
Dong Han ◽  
Yaozong Gao ◽  
Guorong Wu ◽  
Pew-Thian Yap ◽  
Dinggang Shen

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Bicao Li ◽  
Guanyu Yang ◽  
Zhoufeng Liu ◽  
Jean Louis Coatrieux ◽  
Huazhong Shu

This work presents a novel method for multimodal medical registration based on histogram estimation of continuous image representation. The proposed method, regarded as “fast continuous histogram estimation,” employs continuous image representation to estimate the joint histogram of two images to be registered. The Jensen–Arimoto (JA) divergence is a similarity measure to measure the statistical dependence between medical images from different modalities. The estimated joint histogram is exploited to calculate the JA divergence in multimodal medical image registration. In addition, to reduce the grid effect caused by the grid-aligning transformations between two images and improve the implementation speed of the registration method, random samples instead of all pixels are extracted from the images to be registered. The goal of the registration is to optimize the JA divergence, which would be maximal when two misregistered images are perfectly aligned using the downhill simplex method, and thus to get the optimal geometric transformation. Experiments are conducted on an affine registration of 2D and 3D medical images. Results demonstrate the superior performance of the proposed method compared to standard histogram, Parzen window estimations, particle filter, and histogram estimation based on continuous image representation without random sampling.


2013 ◽  
Vol 647 ◽  
pp. 612-617
Author(s):  
Guo Dong Zhang ◽  
Xiao Hu Xue ◽  
Wei Guo

The local extreme is main reason to hamper the optimization process and influence the registration accuracy in medical image registration algorithm. In general, the accuracy of image registration based on mutual information is afforded by interpolation methods. In this paper, we analyze the effect of the measure and interpolation methods for medical image registration and present a medical image registration algorithm using mutual strictly concave function measure and partial volume (PV) interpolation methods. The experiment results show that for images with low local correlation the algorithm has the ability to reduce the local extreme, the registration accuracy is improved, and the algorithm expended less time than mutual information based registration method with partial volume (PV) or generalized partial volume estimation (GPVE).


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