全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于DividingRectangles的多模态

DOI: 10.11834/jig.20080425

Keywords: 图像配准,互信息,Dividing,Rectangles

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了准确、可靠地配准多模态医学图像,提出了一种基于互信息的全局优化配准算法。该算法首先提取出目标物体的外轮廓面,再用迭代最近点方法初步对齐图像;然后用确定性的全局优化方法―DividingRectangles搜索归一化互信息的全局最优解。该算法利用图像的特征信息,为DividingRectangles方法提供了一个较好的初始配准位置,并充分利用了DividingRectangles方法在小范围内的高效搜索能力。实验结果表明,对于3维人体脑部数据,该算法配准精度高、速度快,而且有效地避免了配准过程中出现的局部极值。

References

[1]  Viola P,Wells W M.Alignment by maximization of mutual information[A].In:Proceedings of 5th International Conferanee on Computer Vision[C],Cambridge,MA,USA,1995:16~23.
[2]  Pluim J P W,Maints J B A,Vicrgever M A.Mutual information based registration of medical images:a survey[J].IEEE Transactions on Medical Imaging,2003,22(8):986~1004.
[3]  Finkel D E.DIRECT Optimization Algorithm User Guide[EB/OL].http://www4,ncsu.edu/-ctk/Finkel_ Direct/DirectUserGuide -pdf,2003-04-02.
[4]  Fitzgibbon A.Robust registration of 2D and 3D point sets[A].In:Proceedings of British Machine Vision Conference[C],Manchester,UK,2001:411~420.
[5]  Pluim J P W,Maintz J B A,Viergever M A.Image registration by maximization mutual information and gradient information[J].IEEE Transactions on Medical Imaging,2001,19(8):809~814.
[6]  He R,Narayana P A.Global optimization of mutual information-application to three-dimensional retrospective registration of magnetic resonance images[J].Computer Medical Imaging Graph,2002,26(4):277~92.
[7]  Hsu L Y,Loew M H.Fully automatic 3D feature-based registration of multi-modaIity medical images[J].Image Vision Computer,2001,9(1-2):75~85.
[8]  Dorsey,R E,Mayer W J.Genetic algorithms for estimation problems with multiple optima,non-differentisbility,and other irregular features[J].Journal of Business and Economic Statistics,1995,13(1):53~66.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133