| 利用脊波变换对牙片中根管图像的增强方法 |
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| 引用本文： | 邱菊,张忠波,马驷良. 利用脊波变换对牙片中根管图像的增强方法[J]. 吉林大学学报(理学版), 2009, 47(4): 765-768 |
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| 作者姓名： | 邱菊 张忠波 马驷良 |
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| 作者单位： | 吉林大学 数学研究所, 长春 130012 |
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| 基金项目： | 吉林省科技发展计划项目基金 |
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| 摘 要： | 基于牙片图像的特点及脊波变换能保持线型结构的特性, 提出一种基于脊波变换的边缘检测方法. 以Radon变换作为脊波和高斯小波间的桥梁, 通过脊波域内灰度均值的比较对牙根管区域进行定位, 得到了定位准确、 连续的根管图像边缘. 该检测方法抗噪性好, 定位准确, 更益于医生诊治.
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| 关 键 词： | 小波变换 Radon变换 脊波变换 根管工作长度 边缘检测 |
| 收稿时间： | 2008-09-23 |
Enhancement Method of Root Canal Image in Dental Film Based on Ridgelet Transform |
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| QIU Ju,ZHANG Zhong-bo,MA Si-liang. Enhancement Method of Root Canal Image in Dental Film Based on Ridgelet Transform[J]. Journal of Jilin University: Sci Ed, 2009, 47(4): 765-768 |
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| Authors: | QIU Ju ZHANG Zhong-bo MA Si-liang |
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| Affiliation: | Institute of Mathematics, Jilin University, Changchun 130012, China |
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| Abstract: | On the basis of the property of dental film and the characteristics of ridgelet transform maintaining linear structures this paper presents an edge detection method based on ridgelet transform.The Radon transform connects the Gaussian wavelet and ridgelet.By means of this method one can obtain the continuous edge from the root canal image accurately by comparison the gray level mean in the ridgelet domain.The experimental results show the method can denoise greatly,determine the location accurately and bene... |
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| Keywords: | wavelet transform Radon transform ridgelet transform root canal working length edge detection |
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