| 成象光谱图象光谱吸收鉴别模型与矿物填图研究 |
| |
| 引用本文： | 王晋年,郑兰芬,童庆禧.成象光谱图象光谱吸收鉴别模型与矿物填图研究[J].遥感学报,1996(1). |
| |
| 作者姓名： | 王晋年 郑兰芬 童庆禧 |
| |
| 作者单位： | 中国科学院遥感应用研究所 |
| |
| 摘 要： | 本文提出了一种光谱吸收鉴别模型，拟通过矿物光谱吸收特征的鉴别，在成象光谱上实现矿物直接识别与填图。该模型的核心是光谱吸收指数技术（ＳＡＩ）。从理论上探讨了ＳＡＩ的本质，应用Ｈａｐｋｅ光谱模型讨论了ＳＡＩ与光谱吸收系数（ｄ）以及单散射反照率（ｗ）之间的函数关系，并从成象光谱图象辐射信息传递过程分析了图象ＳＡＩ与光谱吸收深度的关系，而光谱吸收深度与岩石矿物成分含量之间具有定量关系，这显示了ＳＡＩ提取矿物定量遥感信息能力。ＳＡＩ已经成功地应用于ＦＩＭＳ、ＭＡＩＳ和ＧＥＲＩＳ图象处理与矿物填图，本文通过哈图、塔里木、以及澳大利亚松谷的实例研究，表明ＳＡＩ是一种有效的提取矿物类型与丰度信息的方法。
|
| 关 键 词： | 成象光谱，光谱吸收，矿物识别 |
The Spectral Absorption Identification Model and Mineral Mapping by Imaging Spectrometer Data |
| |
| Wang Jinnian,Zheng Lanfen,Tong Qingxi.The Spectral Absorption Identification Model and Mineral Mapping by Imaging Spectrometer Data[J].Journal of Remote Sensing,1996(1). |
| |
| Authors: | Wang Jinnian Zheng Lanfen Tong Qingxi |
| |
| Abstract: | With development of Imaging Spectrometer, the study of geological spectralremote sensing has been stepping into the stage of mineral direct identification fromlithological distinguish. An important approach is to extract mineral information fromimaging spectrometer data. In this paper, a spectral absorption identification model hasbeen developed for mineral mapping. The key technique of this model is spectralabsorption index (SAI). Applying Hapke spectral Model, the relationship between SAIand spectral absorption coefficient (d) or /and single scattering albedo (w ) is estab lished. The relationship between SAI image and spectral absorption depth is analyzedalso. Due to the quantitative relation between mineral content and absorption depth,the SAI will provide the quantitative information of mineral composite. The SAI hasbeen applied in image processing and mineral mapping of FIMS MAIS and GERIS inHatu area, Tarim Basin and Pine Creek of Australia. The study shows SAI is aneffective method to extract mineral type and abundance from hyperspectral image. |
| |
| Keywords: | Imaging spectrometry Spectral absorption Mineral mapping |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《遥感学报》浏览原始摘要信息 |
| 点击此处可从《遥感学报》下载免费的PDF全文 |
