| 基于高分辨率DEM数据的分形几何岩性识别方法初探 |
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| 引用本文： | 尹 力,潘 蔚,田青林.基于高分辨率DEM数据的分形几何岩性识别方法初探[J].铀矿地质,2014(2):122-127. |
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| 作者姓名： | 尹 力 潘 蔚 田青林 |
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| 作者单位： | 核工业北京地质研究院 遥感信息与图像分析技术国家级重点实验室,北京100029 |
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| 摘 要： | 多重分形理论的建立为研究自然地物带来了新的方法。自然地物由于其独特的分形特征,适合采用多重分形等非线性方法来进行定量描述。文章利用遥感重点实验室机载激光雷达测量生成的DEM数据,对不同类型岩石进行了分形几何特征研究,发现不同岩性分布区的DEM多重分形谱存在差异性。多重分形谱f(ɑ)值随ɑ值变化出现大小差异体现了纹理在不同尺度的差异,此特征对于遥感纹理分类和岩性信息提取有重要意义。
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| 关 键 词： | 激光雷达 DEM 多重分形 岩性识别 |
Preliminary Method on the Lithology Identification of High Resolution DEMs |
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| Institution: | YIN Li, PAN Wei, TIAN Qing - Lin (National Key Laboratory of Remote Sensing Information and Image Analysis Technology, Beijing Research Institute of Uranium Geology, Beijing 100029, China) |
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| Abstract: | Multifractal theory brings a new method for the study of natural features. Because of the unique multifractal characteristics of natural features, it＇s of good adapatability quantitatively modeling the natural features nonlinear methods such as multifractal. In this paper, we use the DEM created by LI- DAR to study the multifractal characteristics of different rocks. The study demonstrated that there were differences between multifractal spectra of different rocks. The different f （a） of multifractal spectra with different a described the different texture features of the DEM in different scales. This characteristic can be used in quantitative texture classing and lithologic information extraction. |
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| Keywords: | LIDAR DEM multifractal lithology identification |
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