遥感蚀变信息提取研究综述

矿物蚀变信息是地质找矿的重要依据和手段，利用遥感数据提取蚀变信息是遥感应用领域研究的热点.通过对近年来蚀变信息提取涉及的遥感数据、矿物类别、常用方法等进行梳理，对比分析不同遥感蚀变信息提取方法的效果，总结了遥感蚀变信息提取的发展方向.结果表明，遥感数据朝着高空间分辨率发展，蚀变信息的地面精度随之提高；光谱分辨率的提高使得可提取矿物越来越多；数学方法和人工智能的发展提升了蚀变信息提取方法的应用空间.

A REVIEW OF REMOTE SENSING ALTERATION INFORMATION EXTRACTION TECHNIQUES

The use of remote sensing data to extract mineral alteration information, which serves as important basis and means for geological prospecting, is a research focus in the field of remote sensing application. By studying the remote sensing data, mineral types and common methods involved in alteration information extraction in recent years, the paper makes a comparison analysis of the effects of different remote sensing methods to extract alteration information, and summarizes its development trends. The results show that the ground accuracy of alteration information is improving accordingly with the development of remote sensing data towards high spatial resolution. More and more minerals can be extracted due to the improvement of spectral resolution. The development of mathematical methods and artificial intelligence has improved the application space of alteration information extraction.