基于IDL的遥感影像缨帽变换融合

Tasseled Cap Transform Fusion of Remote Sensing Image Based on IDL

遥感影像融合可以部分消除原始影像的冗余信息,在提高影像的空间分辨率的同时保持其多光谱信息,提高影像的质量,有利于遥感解译、纹理分析以及信息提取等。该研究介绍了基于缨帽变换的遥感影像融合算法,并采用交互式数据语言IDL(Interactive Data Language)进行了实现;同时为了验证算法的有效性,将其与ENVI平台下的几种常用的影像融合方法的融合影像进行了比较。结果表明,基于IDL的遥感影像缨帽变换融合程序执行快速稳定,可靠性高,获得的影像融合效果较好。

Fusion of remote sensing image can partially eliminate the redundant information of the original image, and improve the spatial resolution of the image while maintaining its multi-spectral information and enhancing the quality of the image. It is also conducive to the remote sensing interpretation, information extraction and feature classification. In this research, we described the tasseled cap transformation based on remote sensing image fusion algorithm, and used Interactive Data Language （IDL） to implement it. In order to verify the effectiveness of the algorithm, fusion of remote sensing image was compared with several commonly used fusion methods under ENVI platform. Research results showed that the program was fast, reliable and stable, and the image obtained had relatively good fusion effect.