| 利用金字塔方法增强DR图像 |
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| 引用本文： | 徐艳丽,谭剑. 利用金字塔方法增强DR图像[J]. 中国医学物理学杂志, 2010, 27(3): 1889-1891. DOI: 10.3969/j.issn.1005-202X.2010.03.017 |
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| 作者姓名： | 徐艳丽 谭剑 |
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| 作者单位： | 1. 南方医科大学,南方医院光子刀肿瘤治疗中心,广州,广东,501515
2. 南方医科大学,南方医院教务处,广州,广东,510515 |
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| 摘 要： | 目的:数字化X线图像(DR)空间分辩率高、动态范围宽,对其进行影像增强处理能提取丰富的临床诊断信息,对疾病诊断,特别是早期病灶的发现提供良好的诊断依据。为此,本文提出了一种基于多尺度方法的DR图像增强算法。方法:构建高斯金字塔和拉普拉斯金字塔,利用特定函数调整拉普拉斯金字塔的系数,根据两个金字塔构成的图像序列,通过反复扩展图像并将结果加起来而重建原始图像,增强图像细节。结论:本文通过多尺度图象增强算法,扩展了DR图像的有用信息,突出了图像细节,为临床诊断提供了实用的增强显示效果。
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| 关 键 词： | 对比度增强算法 多尺度图象处理 高斯金字塔 拉普拉斯金字塔 |
DR Image Enhancement Based on Multi-scale Methods |
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| XU Yan-li,TAN Jian. DR Image Enhancement Based on Multi-scale Methods[J]. Chinese Journal of Medical Physics, 2010, 27(3): 1889-1891. DOI: 10.3969/j.issn.1005-202X.2010.03.017 |
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| Authors: | XU Yan-li TAN Jian |
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| Affiliation: | 1.Department of Radiotherapy Center, Nanfang Hospital, Southern Medical University, Guangzhou Guangdong 510515, China; 2.Academic Administration, Nanfang Hospital, Southern Medical University, Guangzhou Guangdong 510515, China) |
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| Abstract: | Objective： In order to improve image quality, unearth decision-making information from the image, this paper presents the contrast enhancement algorithm with multi-scale image enhancement algorithms. Method： Firstly, Gaussian Pyramid and Laplacian Pyramid were built based on images. Secondly, a specific function was proposed to adjust coefficients of Laplaclan Pyramid, rebuilding original images and enhancing image details. Conclusion： Our method enhanced useful features and image details in DR images, facilitating clinical diagnosis. |
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| Keywords: | contrast enhancement multi-scale image processing guassian pyramid laplacian pyramid |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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