| 图像增强技术在重磁图像中的应用 |
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| 引用本文： | 张丽莉 郝天珧 吴健生 王家林. 图像增强技术在重磁图像中的应用[J]. 应用地球物理, 2005, 2(3): 145-152. DOI: 10.1007/s11770-005-0017-5 |
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| 作者姓名： | 张丽莉 郝天珧 吴健生 王家林 |
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| 作者单位： | [1]中科院地质与地球物理研究所,北京100029 [2]同济大学海洋与地球科学学院,上海200092 |
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| 基金项目： | This work is supported by the research project （grant No. G20000467） of the Institute of Geology and Geophysics, CAS and by the China Postdoctoral Science Foundation （No. 2004036083）. |
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| 摘 要： | 本文综述了图像增强技术在位场数据中的应用现状，并介绍了两种改进的图像增强技术，用于增强重磁图像特征。一种方法借鉴了直方图平滑化的思想，应用于位场彩色影像的色谱的自动确定。该方法的应用能够使色彩合理地配置，从而保证了图像的视觉效果和分辨率。另一种方法基于改进的Radon变化和梯度计算，用于重磁图像中线性特征的检测和增强。该方法能在变化域中突出显示线性特征，从而有利于线性特征的检测和增强。通过对简单图像和实际资料的应用，表明了两种方法在增强特征中的有效性。
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| 关 键 词： | 重磁图像 图像增强技术 色谱 线性特征 |
| 收稿时间： | 2005-03-08 |
| 修稿时间： | 2005-03-082005-06-22 |
Application of image enhancement techniques to potential field data |
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| Zhang Lili,Hao Tianyao,Wu Jiansheng,Wang Jialin. Application of image enhancement techniques to potential field data[J]. Applied Geophysics, 2005, 2(3): 145-152. DOI: 10.1007/s11770-005-0017-5 |
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| Authors: | Zhang Lili Hao Tianyao Wu Jiansheng Wang Jialin |
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| Affiliation: | 1.Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; 2. School of Marine and Earth Sciences, Tongji University, Shanghai 200092, China |
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| Abstract: | In this paper the application of image enhancement techniques to potential field data is briefly described and two improved enhancement methods are introduced. One method is derived from the histogram equalization technique and automatically determines the color spectra of geophysical maps. Colors can be properly distributed and visual effects and resolution can be enhanced by the method. The other method is based on the modified Radon transform and gradient calculation and is used to detect and enhance linear features in gravity and magnetic images. The method facilites the detection of line segments in the transform domain. Tests with synthetic images and real data show the methods to be effective in feature enhancement. |
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| Keywords: | image enhancement histogram equalization Radon transform and potential field data |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
