集成樱帽变换的快速IHS融合改进方法  

Improved method of fast IHS fusion with Tasseled Cap transformation

作　　者：王忠武[1] 张茜[2] 刘顺喜[1] 杨健[3] 黄青青[3] 

机构地区：[1]中国土地勘测规划院,北京100035 [2]中国海洋大学信息科学与工程学院,山东青岛266100 [3]中国科学院遥感应用研究所,北京100101

出　　处：《测绘科学》2013年第6期91-93,共3页Science of Surveying and Mapping

基　　金：国家高分辨率对地观测系统专项(E02021112)

摘　　要：本文从IKONOS高分辨率光学传感器的光谱特性出发,分析了植被对快速亮度-色调-饱和度(IHS)融合方法的影响,针对性地提出了一种集成缨帽变换自动分离植被的快速IHS融合改进方法。该方法利用樱帽变换分量构造植被指数实现IKONOS影像的植被区域自动分离,进而应用高通滤波(HP)融合对植被进行单独处理,以降低植被引起快速IHS融合结果光谱变形的影响,提高快速IHS融合质量。By analyzing spectral characteristics of IKONOS multi-spectral and panchromatic sensor, the influence of vegetation pixels on fast Intensity Hue Saturation （IHS） fusion method was discussed, and an improved method using automatic separation of veg- etation based on Tasseled Cap transformation was proposed. Firstly, a vegetation index constructed by Tasseled Cap transformation com- ponents was used to separate vegetation with a fixed threshold. Then, in order to reduce the spectra] distortion that vegetation does on fast IHS fusion results, High Pass （HP） fusian method was adopted to fuse vegetation individually. The result was proved to be able to improve the fusion effect of fast HIS.

关 键 词：快速IHS融合 樱帽变换 植被指数 影像融合 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]