【作者】 王冬利；

【导师】 成秋明；

【作者基本信息】 中国地质大学(北京) ， 资源与环境遥感， 2012， 博士

【摘要】 本文依托于覆盖区矿产勘查弱信息提取机理和应用研究课题,围绕应用遥感技术提取与成矿有关的构造信息和蚀变信息,结合区域地质建立找矿模型这一主题,选取铁矿丰富且前期野外勘查矿化信息明显的新疆西天山和静县区域为研究区,进行多光谱遥感影像上线性构造自动提取以及矿化蚀变异常信息提取技术方法探讨与研究。通过充分收集研究区地质背景资料以及系统而详细地分析前人研究成果基础之上,先是对遥感影像线性构造自动提取进行了有意义尝试,提出了一个自动提取方法,并对研究区线性构造信息进行提取；然后,采用多种蚀变提取方法提取研究区遥感蚀变异常信息,并分析与比较信息提取结果,同时还引入非线性提取地球化学异常的思想提取遥感蚀变异常信息,丰富了矿化蚀变信息提取方法；最后,总结出一套适合研究区的遥感矿化异常信息提取流程。论文的主要研究工作具体内容如下：(1)分析线性构造解译标志,研究其在遥感影像上基本特征；(2)根据线性构造在遥感影像上的基本特征,对遥感数据进行预处理,突出和提取线性构造所在区域；(3)研究遥感线性信息提取方法,进而对研究区遥感影像线性构造自动提取方法进行研究；(4)研究各种蚀变信息提取方法,分析它们提取研究区蚀变信息的结果,总结这些方法提取蚀变信息差异的原因；(5)引入地球化学元素异常信息非线性提取思想对研究区提取蚀变信息,提出一种基于分形的蚀变信息提取方法；(6)通过研究与分析各种方法提取的研究区蚀变信息结果,总结出一套适合研究区的遥感矿化蚀变异常信息提取工作流程。更多还原

【Abstract】 This paper studied the methods of linear structure automatic extraction on the multispectral remote sensing images and anomaly alteration information extraction of mineralization. The study depended on the research topic of weak information extraction mechanism and application for the mineral exploration of coverage area, and selected Hejing County in Xinjiang province as the study area. In this area, iron ore resources are rich and the mineralization information of preliminary field investigation is very apparent. Through the full collection of geological background and the detailed analysis of the predecessor researched results, the paper presented a method for linear structure automatic extraction on the multispectral remote sensing images, and applied the method to the linear structure extraction of the study area. It is a meaningful attempt. This paper not only used a variety of alteration extraction method to extract the anomaly information of remote sensing alteration in the study area, analyzed and compared information extraction results, but also introduced the thought of geochemical anomalies nonlinear extraction to extract of the study area’s anomaly information of alteration. The study enriched alteration information extracting method of mineralization. In addition, the paper summed up a process of extracting alteration information, which is suitable for extracting remote sensing anomalies related to mineralization information in the study area. The main work of this thesis is as follows:(1) Analyzing the interpretation of linear structure signs and studying its basic characteristics in remote sensing images.(2) According to the basic characteristics of the linear structures in remote sensing image, highlighting and extracting linear structure area through preprocessing the data.(3) Studying the methods of linear information extraction in remote sensing image, and then further researching the automatic extraction method of linear structures.(4) Studying a variety of methods of extracting alteration information and then analyzing their results of extracting alteration information, finally summarizing the reasons of different results.(5) Introducing fractal technology and the thought of nonlinear extracting geochemical anomalies to extracting alteration information of the study area.(6) Through researching and analyzing various methods extracting results, summing up a process of extracting alteration information, which is suitable for extracting remote sensing anomalies related to mineralization information in the study area.更多还原