| 一种IVUS序列图像内外膜边缘的自动提取方法 |
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| 引用本文： | 曲怀敬,孙丰荣,张运楚,姚桂华,吴延荣,杨明强. 一种IVUS序列图像内外膜边缘的自动提取方法[J]. 山东大学学报(工学版), 2011, 41(2): 5-11 |
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| 作者姓名： | 曲怀敬 孙丰荣 张运楚 姚桂华 吴延荣 杨明强 |
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| 作者单位： | 1. 山东建筑大学信息与电气工程学院, 山东 济南 250101; 2. 山东大学信息科学与工程学院, 山东 济南 250100;3. 山东大学齐鲁医院心内科, 山东 济南 250012 |
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| 摘 要： | 针对现有的血管内超声(intravascular ultrasound, IVUS)图像边缘提取存在的不足,提出一种改进的IVUS序列图像内外膜边缘自动提取的方法。该方法首先在Contourlet变换域对图像的斑点噪声进行有效去除;然后根据序列图像的物理特征和结构信息,自动确定图像内外膜边缘的初始轮廓;最后采用活动轮廓模型和去噪后图像灰阶梯度特征量,通过动态规划技术自动提取图像的内外膜边缘。实验结果表明,该方法算法简单,准确性较高,具有一定的临床应用价值。
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| 关 键 词： | 血管内超声 斑点去噪 活动轮廓模型 动态规划 边缘提取 |
| 收稿时间： | 2010-07-26 |
An automated method for the detection of the lumen and media-adventitia contours of sequential IVUS images |
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| QU Huai-jing,SUN Feng-rong,ZHANG Yun-chu,YAO Gui-hua,WU Yan-rong,YANG Ming-qiang. An automated method for the detection of the lumen and media-adventitia contours of sequential IVUS images[J]. Journal of Shandong University of Technology, 2011, 41(2): 5-11 |
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| Authors: | QU Huai-jing SUN Feng-rong ZHANG Yun-chu YAO Gui-hua WU Yan-rong YANG Ming-qiang |
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| Affiliation: | 1. School of Information ＆ Electric Engineering, Shandong Jianzhu University, Jinan 250101, China;2. School of Information Science and Engineering, Shandong University, Jinan 250100, China;3. Cardiology Department of Qilu Hospital, Shandong University, Jinan 250012, China |
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| Abstract: | Because of shortcomings of the existing contour detection of the intravascular ultrasound(IVUS) image,an improved method used for automatically detecting the lumen and media-adventitia contours of sequential IVUS images was presented.First,the speckle noise of the image was effectively removed in the contourlet transform domain.Then,the initial lumen and media-adventitia contours of the image were estimated according to physical properties and structural information of sequential images.Finally,using the ac... |
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| Keywords: | intravascular ultrasound speckle denoising active contour model dynamic programming contour detection |
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