铁路工程地质遥感图像处理系统设计研究

Design and Research of Remote Sensing Image Processing System for Railway Engineering Geology

文章针对铁路工程缺少专业的地质遥感图像处理系统需求,设计支持图像融合评价、波段运算等功能的系统。在阐述系统的结构基础上,详细介绍系统图像文件管理、图像融合、图像增强等功能的设计。同时,选取部分实例测试系统功能,研究结果表明,根据光谱逼真度及其纹理清晰度可以定量评价图像融合结果,从而挑选最合理的融合算法,提升遥感影像可判释能力;水体指数法可以展现良好的细节信息,适用于平坦地域水体信息提取;谱间信息法可以把水体和阴影进行区分,适合用在陡峻山区信息提取。

In view of the lack of professional geological remote sensing image processing system in railway engi. neering,this paper designs a system that supports image fusion evaluation,band operation and other functions. On the basis of expounding the structure of the system,the design of image file management,image fusion,im. age enhancement and other functions of the system are introduced in detail. At the same time,some examples are selected to test the function of the system. The research results show that the image fusion results can be quantitatively evaluated according to the spectral fidelity and texture definition,so as to select the most reason. able fusion algorithm and improve the interpretability of remote sensing images. The water body index method can show good detail information and is suitable for extracting water body information in flat areas. Inter - spec. tral information method can distinguish water body from shadow and is suitable for information extraction in steep mountain areas.