| 基于组合不变量配准的数字减影算法 |
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| 引用本文： | 王金玲,王保华.基于组合不变量配准的数字减影算法[J].中国医疗器械杂志,2006,30(1):15-19. |
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| 作者姓名： | 王金玲 王保华 |
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| 作者单位： | 上海大学通信与信息工程学院,上海,200072 |
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| 摘 要： | 在现代医学中，DSA是X光片血管可视化技术的重要组成部分之一，在DSA中图像配准对消除运动伪影起着关键作用。运用一种基于组合不变量的相似度测量的模板匹配和弹性TPS算法配准减影方法，并根据实际情况有所改进。经过试验证明这种方法可以自动并有效地去除运动伪影，其速度和血管图像质量均比较理想。
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| 关 键 词： | 数字血管减影 模板匹配 相似度测量 组合不变量 TPS弹性插值 |
| 文章编号： | 1671-7104(2006)01-0015-04 |
An Invariant Approach for Image Registration in Digital Subtraction Angiography |
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| WANG Jin-ling,WANG Bao-hua.An Invariant Approach for Image Registration in Digital Subtraction Angiography[J].Chinese Journal of Medical Instrumentation,2006,30(1):15-19. |
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| Authors: | WANG Jin-ling WANG Bao-hua |
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| Institution: | School of Communication and Information Engineering, Shanghai University, Shanghai. |
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| Abstract: | In modern medicine, DSA is a powerful technique in visualizations of blood vessels of X-ray images. In DSA, the most important way for motion correction is image registration. In this paper, a new approach to the registration is used. It is based on means of template matching according to a combined invariants-based similarity measure and TPS image warping. Furthermore it has been improved through practice, and tests have proved to remove the motion artifacts effectively and rapidly. |
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| Keywords: | DSA template matching similarity measure combined invariants thin plate spline |
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