北京测绘
北京測繪
북경측회
BEIJING SURVEYING AND MAPPING
2012年
5期
56-59
,共4页
摄影测量与遥感%遥感图像检索%光谱特征%多光谱图像%K-L变换
攝影測量與遙感%遙感圖像檢索%光譜特徵%多光譜圖像%K-L變換
섭영측량여요감%요감도상검색%광보특정%다광보도상%K-L변환
photogrammetry and remote sensing%remote sensing image retrieval%spectral character%multi-spectral images%K-L transformation
在遥感图像检索中,光谱特征的应用最为广泛。本文研究了基于光谱特征进行遥感图像检索的方法。针对目前应用越来越广泛的多光谱、高光谱遥感图像波段多的特点,提出了基于K-L变换的检索方法,将多维图像降维处理,在此基础上提取遥感图像的光谱特征,通过检索图像与目标图像的光谱特征对比实现多光谱遥感图像的检索,并通过实验验证了本文方法的有效性。
在遙感圖像檢索中,光譜特徵的應用最為廣汎。本文研究瞭基于光譜特徵進行遙感圖像檢索的方法。針對目前應用越來越廣汎的多光譜、高光譜遙感圖像波段多的特點,提齣瞭基于K-L變換的檢索方法,將多維圖像降維處理,在此基礎上提取遙感圖像的光譜特徵,通過檢索圖像與目標圖像的光譜特徵對比實現多光譜遙感圖像的檢索,併通過實驗驗證瞭本文方法的有效性。
재요감도상검색중,광보특정적응용최위엄범。본문연구료기우광보특정진행요감도상검색적방법。침대목전응용월래월엄범적다광보、고광보요감도상파단다적특점,제출료기우K-L변환적검색방법,장다유도상강유처리,재차기출상제취요감도상적광보특정,통과검색도상여목표도상적광보특정대비실현다광보요감도상적검색,병통과실험험증료본문방법적유효성。
The spectral character is the basic character in remote sensing images, and is naturally being used the most widely in remote sensing image retrieval. Considering the characteristic of multi-spectral or hyper-spectral remote sensing images, K-L transformation based image retrieval method is proposed in this paper. Instead of original multi-spectral image, image retrieval can be carried out using the histogram of the first three principal component images; the distance of the remote sensing images can be calculated after extracting the spectral character. This is also proved to be effective and time saving by the experiments in this paper.
