河北北方学院学报(自然科学版)
河北北方學院學報(自然科學版)
하북북방학원학보(자연과학판)
JOURNAL OF HEBEI NORTH UNIVERSITY(NATURAL SCIENCE EDITION)
2014年
2期
17-21
,共5页
SPOT影像%标准差%OIF指数%雪氏熵值法
SPOT影像%標準差%OIF指數%雪氏熵值法
SPOT영상%표준차%OIF지수%설씨적치법
SPOT remote sensing image%standard deviation%Optimum Index Factor%Sheffield en-tropy method
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。
最佳波段組閤選取是圖像解譯和信息提取的重要前提。基于 SPOT遙感圖像,通過計算單波段最值、均值、標準差完成遙感數據的統計分析工作,進一步計算各波段間協方差、相關繫數,分彆基于最佳因子法(OIF)和雪氏熵值法進行最佳波段選取研究。結果錶明:SPOT影像最佳波段組閤為124,經比較,將4波段賦予紅色、1波段賦予綠色、2波段賦予藍色,穫得的圖像色綵反差明顯、層次豐富,能比較全麵反映各種地物信息顏色差彆,對進一步研究專題信息提取具有重要意義。
최가파단조합선취시도상해역화신식제취적중요전제。기우 SPOT요감도상,통과계산단파단최치、균치、표준차완성요감수거적통계분석공작,진일보계산각파단간협방차、상관계수,분별기우최가인자법(OIF)화설씨적치법진행최가파단선취연구。결과표명:SPOT영상최가파단조합위124,경비교,장4파단부여홍색、1파단부여록색、2파단부여람색,획득적도상색채반차명현、층차봉부,능비교전면반영각충지물신식안색차별,대진일보연구전제신식제취구유중요의의。
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.