不同地貌的TH-1遥感影像融合质量评价  

Fusion quality evaluation of TH-1 remote sensing images in different landform conditions

作　　者：李霞[1] 朱倩[1] 张昆[1] 赵洋洋[1] 

机构地区：[1]长安大学地球科学与资源学院,西安710054

出　　处：《计算机工程与应用》2016年第4期200-204,270,共6页Computer Engineering and Applications

基　　金：国家自然科学基金(No.41101445)

摘　　要：为了探明TH-1影像在不同地貌条件下的融合质量,选用IHS、PCA、小波、P+XS、Brovey五种融合方法,对平地、山地、丘陵三种地貌的TH-1影像进行了融合实验及定性定量结合的质量评价。结果表明:TH-1影像融合质量随地形高差增大而递减,而且递减幅度较大;经Brovey、IHS变换的TH-1影像综合质量最高,可用于制图等对图像综合质量要求较高的领域,经PCA、小波变换的TH-1影像光谱保持度最好,可用作水质监测或蚀变分析等侧重光谱分析的领域,经P+XS变换的TH-1影像空间保持度最佳,可用作地理底图等对清晰度要求较高的领域。In order to explore the fusion quality of TH-1 remote sensing image in different landform conditions,five kinds of fusion methods are applied in plainlandform,mountainlandform,and hill landform in this paper. Fusion methods included IHS,PCA,Wavelet,P＋XS,and Brovey. According to experiment,this paper gives the quantitative and qualitative evaluation. The result shows that the data quality decreasing sharply with the hypsography increasing. The Brovey and IHS fusion methods have the most satisfactory expression in comprehensive fusion quality; its fusion result can be used in map-making and other parts which have the higher demand for comprehensive image quality. The PCA and Wavelet fusion methods have the high spectral retention; its fusion result can be used in water quality monitoring,alteration analysis and other parts which has the higher demand for spectral information. The P＋XS fusion method keptspatial information well;its fusion result can be used as geographical base map which requires high legibility.

关 键 词：TH-1 影像融合 影像质量评价 不同地貌 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]