| Worldview-2数据在沉积岩地区的遥感岩性增强方法初探——以新疆喀什阿尔塔什地区为例 |
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| 引用本文： | 焦润成,;秦彦平,;张淑云,;王荣荣.Worldview-2数据在沉积岩地区的遥感岩性增强方法初探——以新疆喀什阿尔塔什地区为例[J].西北地质,2014(4):277-283. |
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| 作者姓名： | 焦润成 ;秦彦平 ;张淑云 ;王荣荣 |
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| 作者单位： | [1]北京市地质研究所,北京100120; [2]北京交通大学,北京100044; [3]中国地质大学,北京100083 |
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| 基金项目： | 中国地质调查局“西昆仑成矿带矿产资源遥感地质调查”（1212011220647） |
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| 摘 要： | 为了进一步探讨Worldview-2数据在岩性识别工作中的应用效果,笔者选择新疆喀什地区阿尔塔什沉积岩区进行遥感岩性增强方法研究。通过对研究区内实测岩石波谱曲线和Worldview-2数据进行分析,对比不同岩性之间的光谱差异,在综合考虑异物同(近)谱、表层浅覆盖等的基础上,结合WorldView-2数据的波段特点和数据统计特征,确立了波段组合-波谱增强-去相关增强-纹理信息融合的处理方法。有效提高了不同岩性之间的对比度,改善了外界因素对光谱信息的干扰,为精确识别不同岩性提供了可靠基础。
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| 关 键 词： | 遥感 worldview-2数据 岩矿波谱分析 波谱增强 去相关增强 纹理信息融合 |
A Preliminary Exploration of Methods to Enhance Remote Sensing Lithology with Worldview-2 Data in Sedimentary Rocks Area A Case Study in Kashi Altas District of Xinjiang |
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| Institution: | JIAO Run-cheng, QIN Yan-ping, ZHANG Shu-yun, WANG Rong-rong(1. Beijing Institute of Geology, Beijing 100120, China ; 2. Beijing Jiaotong University, Beijing 100044, China ; 3. China University of Geosciences, Beijing 100083, China) |
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| Abstract: | In order to further explore and discuss the application effects of Worldview-2 data in lithology identification, we chose Kashi Altas District in Xinjiang as our research area for Remote Sensing lithology enhancement study in this paper. Analyzing the measured spectrum curves of rocks and Worldview-2 data in the study area, we contrasted the spectral differences among different lithology. After comprehen- sively considering objects with the same spectrum and the shallow cover, integrating the band feature and data statistics properties of Worldview-2 data, we established a processing method, namely band combi- nation-spectrum enhancement-deeorrelation reinforce-texture information fusion. This method has effectively risen the contrast ratio among different lithology and greatly improved the external interference factors on the spectral information. In addition, it has also provided a reliable basis for accurately identifying the different lithology. |
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| Keywords: | remote sensing Worldview-2 analysis of the mineral spectrum spectrum enhance-ment decorrelation reinforce texture information fusion |
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