| 一种新的血管造影图像增强方法 |
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| 引用本文： | 李抱朴,桑农,曹治国,张天序.一种新的血管造影图像增强方法[J].电子学报,2006,34(4):695-697. |
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| 作者姓名： | 李抱朴 桑农 曹治国 张天序 |
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| 作者单位： | 华中科技大学 |
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| 基金项目： | 国家973重点基础研究发展规划（No.2003CB716105） |
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| 摘 要： | 本文提出了一种新的血管造影图像增强算法.血管造影图像的质量由于种种原因而比较差,因而有必要对其进行增强以便于后续的分割或者中轴提取.为了解决这一问题,本文先对各向异性增强进行了深入分析,然后结合血管造影图像的特点,建立了一种新的对比度模型.并利用此模型,对原始的各向异性扩散方法中的传导参数加以自适应选择,最后利用改进的算法对血管造影图像进行增强.实验结果表明改进的各向异性扩散算法能很好地增强血管造影图像.
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| 关 键 词： | 血管造影图像 各向异性扩散 对比度 增强 |
| 文章编号： | 0372-2112（2006）04-0695-03 |
| 收稿时间： | 2005-01-26 |
| 修稿时间： | 2005-01-262005-11-29 |
A New Angiogram Images Enhancement Method |
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| LI Bao-pu,SANG Nong,CAO Zhi-guo,ZHANG Tian-xu.A New Angiogram Images Enhancement Method[J].Acta Electronica Sinica,2006,34(4):695-697. |
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| Authors: | LI Bao-pu SANG Nong CAO Zhi-guo ZHANG Tian-xu |
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| Affiliation: | 1. Institute for Pattern Recognition and Artificial Intelligence,Huazhong University of Science and Technology,Wuhan,Hubei 430074,China;2. Department of Electronic Engineering,the Chinese University of Hong Kong,Hong Kong SAR,China;3. Key Lab.of Ministry of Education for Image Processing and Intelligent Control,Huazhong University of Science and Technology,Wuhan,Hubei 430074,China |
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| Abstract: | Presents a new angiogram image enhancement algorithm. The X-ray angiogram image quality is often not good due to various kinds of reasons, which cause a lot of difficulties to vessel segmentation or vessel axis extraction. To overcome this shortcoming, we firstly analyze the original anisotropic diffusion. Then the characteristics of angiogram images are investigated, and a new model of contrast is presented. Based on this contrast model, we propose a new anisotropic diffusion to enhance the X-ray angiogram images, which can adaptively choose the conductance parameter. Experimental results show that this new method is very effective. |
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| Keywords: | angiogram image anisotropic diffusion contrast enhancement |
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