| 基于Curvelet变换的X射线图像增强 |
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| 引用本文： | 杨振亚,陈裕泉,潘敏.基于Curvelet变换的X射线图像增强[J].计算机科学,2010,37(3):275-277. |
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| 作者姓名： | 杨振亚 陈裕泉 潘敏 |
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| 作者单位： | 1. 浙江大学生物医学工程系,杭州,310027;湖南工业大学电气与信息工程学院,株洲,412008
2. 浙江大学生物医学工程系,杭州,310027 |
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| 基金项目： | 国家“十一五”科技支撑计划项目(2006BAD30B03)资助 |
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| 摘 要： | 针对传统X-射线图像增强方法中图像细节不够清晰或噪声增强过大的问题,基于数学定义严谨的多尺度几何分析方法Curvelet变换,给出了一种灵活的非线性增强函数。首先,对X-射线图像进行Curvelet分解,然后在各精细尺度上对系数按增强函数进行映射,最后根据修正后的Curvelet系数重建图像。实验表明,根据所给定的增强函数,Curvelet变换能有效增强X-射线图像边缘对比度,细节清晰,噪声小,与传统方法比较,具有更好的视觉效果。
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| 关 键 词： | 图像增强 Curvelet变换 多尺度几何分析 X-射线图像 |
| 收稿时间： | 2009/4/28 0:00:00 |
| 修稿时间： | 8/8/2009 12:00:00 AM |
X-ray Image Enhancement Based on Curvelet Transform |
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| YANG Zhen-y,CHEN Yu-quan,PAN min.X-ray Image Enhancement Based on Curvelet Transform[J].Computer Science,2010,37(3):275-277. |
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| Authors: | YANG Zhen-y CHEN Yu-quan PAN min |
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| Affiliation: | Dept.of Biomedical Engineering/a>;Zhejiang University/a>;Hangzhou 310027/a>;China;Institute of Electrical and Information Engineering/a>;Hunan University of Technology/a>;Zhuzhou 412008/a>;China |
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| Abstract: | Traditional X-ray image enhancement methods have the problem that enhanced image detail is not clear enough or too much noisy.Based on rigorous mathematical defined multi-scale geometric analysis method,Curvelet transform,a flexible non-linear enhancement function was presented.First of all,Curvelet transform was applied to the X-ray image,then,the fine Curvelet coefficients were mapped by the presented enhancement function,and finally the enhancement X-ray image was reconstructed from the amended Curvelet ... |
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| Keywords: | Image enhancement Curvelet transform Multi-scale geometric analysis X-ray image |
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