基于SPOT影像的最佳波段组合选取研究  

Selection of Optimum Band Combination Based on SPOT Image

作　　者：郑丽[1] 陈元涛[2] 

机构地区：[1]宿州学院地球科学与工程学院,安徽宿州234000 [2]重庆工业职业技术学院建筑与环境工程学院,重庆401120

出　　处：《河北北方学院学报（自然科学版）》2014年第2期17-21,共5页Journal of Hebei North University:Natural Science Edition

基　　金：宿州学院一般科研项目:"线性光谱解混的研究与应用"(2011yyb07)

摘　　要：最佳波段组合选取是图像解译和信息提取的重要前提。基于SPOT遥感图像,通过计算单波段最值、均值、标准差完成遥感数据的统计分析工作,进一步计算各波段间协方差、相关系数,分别基于最佳因子法(OIF)和雪氏熵值法进行最佳波段选取研究。结果表明:SPOT影像最佳波段组合为124,经比较,将4波段赋予红色、1波段赋予绿色、2波段赋予蓝色,获得的图像色彩反差明显、层次丰富,能比较全面反映各种地物信息颜色差别,对进一步研究专题信息提取具有重要意义。The selection of optimum band combination is an important prerequisite for image interpre-tation and information extraction.The most value,the mean and standard deviation of remote sensing da-ta were calculated based on SPOT remote sensing image.The covariance and the correlation coefficient a-mong different wavelengths were then calculated. The methods of Optimum Index Factor and Sheffield Entropy were used to research the optimal band selection. The results showed that the optimum band combination of SPOT remote sensing image is 124.After comparison,if given 4 to red band,1 to green band,2 to blue band,the image color contrast is obvious and rich in layers,which can fully reflect all kinds of feature information of color difference and has great significance for further research on thematic information extraction.

关 键 词：SPOT影像 标准差 OIF指数 雪氏熵值法 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]