图像配准中B样条滤波和GPVE的融合插值算法

doi:10.3724/SP.J.1087.2011.02225

计算机应用 ›› 2011, Vol. 31 ›› Issue (08): 2225-2228.DOI: 10.3724/SP.J.1087.2011.02225

图像配准中B样条滤波和GPVE的融合插值算法

胡顺波

临沂大学信息学院，山东临沂276005

收稿日期:2011-01-18 修回日期:2011-04-28 发布日期:2011-08-01 出版日期:2011-08-01
通讯作者: 胡顺波
作者简介:胡顺波(1977-)，男，山东临沭人，副教授，博士，主要研究方向：医学图像处理。
基金资助:
山东省优秀中青年科学家科研奖励基金资助项目(BS2009DX028);山东省高校科研发展计划项目(J09LG82)

Mixed interpolation algorithm integrating B-spline filter and generalized partial volume estimation in image registration

Shun-bo HU

School of Information, Linyi University, Linyi Shandong 276005, China

Received:2011-01-18 Revised:2011-04-28 Online:2011-08-01 Published:2011-08-01
Contact: Shun-bo HU

摘要/Abstract

摘要： 针对B样条GPVE插值法和B样条滤波法产生归一化互信息(NMI)测度伪极值点的原因，结合它们导致联合直方图聚散程度的互补效果，提出了各阶B样条滤波和GPVE的融合插值算法。通过图像之间的刚体配准实验，从测度曲线光滑性能和极值点数目方面，对比分析了一阶、三阶、五阶B样条滤波法，B样条GPVE插值法和新提出的融合插值算法。实验结果表明，提出的各阶B样条融合插值算法的配准性能都优于对应阶次B样条滤波法和B样条GPVE插值法。

关键词: 图像配准, 归一化互信息, 插值, B样条

Abstract: Many false maxima were generated by B-spline Generalized Partial Volume Estimation (GPVE) or B-spline filter, but they had opposite dispersion effects on joint histogram of two registering images. By integrating the same order B-spline filter and B-spline GPVE, the mixed interpolation algorithm was proposed. When the registered images were rigidly aligned, the smoothness and number of maxima of the normalized mutual information curves were compared by applying many interpolation algorithms, which included the order 1, 3, and 5 B-spline filters, B-spline GPVE, and the new mixed interpolation algorithms. The experimental results show that the new mixed interpolation algorithms with order n B-spline outperform the corresponding B-spline filter and B-spline GPVE in image registration.

Key words: image registration, Normalized Mutual Information (NMI), interpolation, B-spline

中图分类号:

TP391.413

胡顺波. 图像配准中B样条滤波和GPVE的融合插值算法[J]. 计算机应用, 2011, 31(08): 2225-2228.

Shun-bo HU. Mixed interpolation algorithm integrating B-spline filter and generalized partial volume estimation in image registration[J]. Journal of Computer Applications, 2011, 31(08): 2225-2228.

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图像配准中B样条滤波和GPVE的融合插值算法

Mixed interpolation algorithm integrating B-spline filter and generalized partial volume estimation in image registration

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