资源三号卫星高分影像的城市建筑物阴影提取
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摘要
针对城市高分影像中普遍存在的建筑物阴影严重影响了高分影像的处理和应用问题,该文通过对资源三号卫星(ZY-3)各波段的影像特征进行分析,分别采用基于直方图的阈值分割法、基于主成分变换和HIS变换集成法对阴影提取并对比分析,在此基础上提出了一种基于谱间关系的阴影提取模型。实验结果表明,该文提出的方法能够较好地区分ZY-3影像中的阴影和偏蓝色地物及水体,能够准确地提取城市高大地物阴影。
The shadows of buildings exist very commonly in the city's high resolution images,which seriously affect the processing and application of HSR images.In this paper,by analyzing each band's image features of ZY-3,three shadow extracting methods,including histogram based threshold segmentation method,the principal component transform method and the HIS transform integration method were compared and analyzed;on this basis,a shadow extraction model based on the spectral correlation was proposed.Experimental results showed that the proposed method could distinguish the shadows from partial blue objects and water and accurately extract the shadows of the high and big ground objects in the city.
The shadows of buildings exist very commonly in the city's high resolution images,which seriously affect the processing and application of HSR images.In this paper,by analyzing each band's image features of ZY-3,three shadow extracting methods,including histogram based threshold segmentation method,the principal component transform method and the HIS transform integration method were compared and analyzed;on this basis,a shadow extraction model based on the spectral correlation was proposed.Experimental results showed that the proposed method could distinguish the shadows from partial blue objects and water and accurately extract the shadows of the high and big ground objects in the city.
引文
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[14]刘辉,谢天文.基于PCA与HIS模型的高分辨率遥感影像阴影检测研究[J].遥感技术与应用,2013,28(1):78-84.(LIU Hui,XIE Tianwen.Study on shadow detection in high resolution remote sensing image based on PCA and HIS model[J].Journal of Remote Sensing Technology and Application,2013,28(1):78-84.)
[15]于红艳,李利军.彩色航空影像中建筑物阴影提取[J].科学技术与工程,2007,7(7):1389-1393.(YU Hongyan,LI Lijun.Shadow extraction of building in color aerial images[J].Science Technology and Engineering,2007,7(7):1389-1393.)
[16]孙静,赵伟,赵鲁全.土地利用遥感动态监测技术方法介绍[J].山东国土资源,2005,21(4):38-41.(SUN Jing,ZHAO Wei,ZHAO Luquan.Introduction to sense-remoting dynamic monitoring technology in landusing[J].Land and Resources in Shandong Province,2005,21(4):38-41.)
[17]姚花琴,杨树文,刘正军,等.适用WorldView-2影像的城市高大地物阴影检测方法[J].测绘科学,2015,40(10):110-113.(YAO Huaqin,YANG Shuwen,LIU Zhengjun,et al.Shadow detection method of city large objects based on WorldView-2image[J].Science of Surveying and Mapping,2015,40(10):110-113.)
[18]杨树文,李轶鲲,刘涛,等.基于SPOT5影像自动提取水体的新方法[J].武汉大学学报(信息科学版),2015,40(3):308-314.(YANG Shuwen,LI Yikun,LIU Tao,et al.A new automatic water body feature extraction method based on SPOT5images[J].Geomatics and Information Science of Wuhan University,2015,40(3):308-314.)
[2]董玉森,詹云军,杨树文.利用高分辨率遥感图像阴影信息提取建筑物高度[J].咸宁师专学报,2002,22(3):93-96.(DONG Yusen,ZHAN Yunjun,YANG Shuwen.Extracting buildings distribution information of different heights from the shadows in high resolution images[J].Journal of Xianning Teachers College,2002,22(3):93-96.)
[3]AREVALO V,GONZALEZ J,AMBROSIO G.Shadow detection in colour high-resolution satellite images[J].International Journal of Remote Sensing,2008,29(7):1945-1962.
[4]POLIDORIO A M,FLORES F C,IMAN N,et al.Automatic shadow segmentation in aerial color images[C]//Proceedings of the XVI Brazilian Symposium on Computer Graphics and Image Processing.Washington DC,USA:IEEE,2003:270-277.
[5]徐宏根,宋妍.顾及阴影信息的高分辨率遥感图像变化检测方法[J].国土资源遥感,2013,25(4):16-21.(XU Honggen,SONG Yan.Change detection method taking into account shadow information for high resolution remote sensing image[J].Remote Sensing for Land and Resources,2013,25(4):16-21.)
[6]姚花琴,杨树文,刘正军,等.基于QuickBird影像的城市高大地物阴影检测方法[J].国土资源遥感,2015,27(2):51-55.(YAO Huaqin,YANG Shuwen,LIU Zhengjun,et al.A method of shadow detection for city tall ground objects based on QuickBird images[J].Remote Sensing for Land and Resources,2015,27(2):51-55.)
[7]刘小洲,周石琳,李智勇.高分辨率遥感图像中建筑物阴影的提取[J].计算机仿真,2008,25(8):197-200.(LIU Xiaozhou,ZHOU Shilin,LI Zhiyong.Extraction of buildingshadows from urban high resolution remote sensing image[J].Computer Simulation,2008,25(8):197-200.)
[8]杨兴旺,杨树文,刘正军,等.资源三号影像的城市高大地物阴影检测方法[J].测绘科学,2015,40(7):98-101.(YANG Xingwang,YANG Shuwen,LIU Zhengjun,et al.Shadow detection for urban tall standing objects based on ZY-3satellite imagery[J].Science of Surveying and Mapping,2015,40(7):98-101.)
[9]石义方,汪小钦,孙振海,等.基于阴影的资源三号卫星数据城市建筑物高度估算[J].地球信息科学,2015,17(2):236-243.(SHI Yifang,WANG Xiaoqin,SUN Zhenhai,et al.Urban building heights estimation from the shadow information on ZY-3Images[J].Journal of Geo-information Science,2015,17(2):236-243.)
[10]卢刚,陆敏燕,陈成,等.资源三号卫星影像分类研究[C]∥第九届长三角科技论坛:测绘分论坛.南京:江苏省测绘学会,2012:81-84.(LU Gang,LU Minyan,CHEN Chenglai.ZY-3image classification research[C]∥The Ninth Yangtze Technology BBS:Surveying and Mapping Points BBS.Nanjing:Surveying and Mapping Institute of Jiangsu Province,2012:81-84.)
[11]于东方,殷建平,张国敏.一种基于灰度直方图的遥感影像阴影自动检测方法[J].计算机科学与工程,2008,30(12):43-44.(YU Dongfang,YIN Jianping,ZHANG Guomin.An automatic shadow detection method for remote sensing images based on gray histogram[J].Computer Engineering&Science,2008,30(12):43-44.)
[12]虢建宏,田庆久.一种IKONOS影像阴影检测与去除的方法[J].遥感信息,2004(4):32-34.(GUO Jianhong,TIAN Qingjiu.A shadow detection and removal method for IKONOS images[J].Remote Sensing Information,2004(4):32-34.)
[13]LU Shan,HUANG Wei,HUANG Riu.Shadow detection of color urban aerial images[C]//International Conference on Audio Language&Image Processing.[S.l]:[s.n.],2010:1610-1613.
[14]刘辉,谢天文.基于PCA与HIS模型的高分辨率遥感影像阴影检测研究[J].遥感技术与应用,2013,28(1):78-84.(LIU Hui,XIE Tianwen.Study on shadow detection in high resolution remote sensing image based on PCA and HIS model[J].Journal of Remote Sensing Technology and Application,2013,28(1):78-84.)
[15]于红艳,李利军.彩色航空影像中建筑物阴影提取[J].科学技术与工程,2007,7(7):1389-1393.(YU Hongyan,LI Lijun.Shadow extraction of building in color aerial images[J].Science Technology and Engineering,2007,7(7):1389-1393.)
[16]孙静,赵伟,赵鲁全.土地利用遥感动态监测技术方法介绍[J].山东国土资源,2005,21(4):38-41.(SUN Jing,ZHAO Wei,ZHAO Luquan.Introduction to sense-remoting dynamic monitoring technology in landusing[J].Land and Resources in Shandong Province,2005,21(4):38-41.)
[17]姚花琴,杨树文,刘正军,等.适用WorldView-2影像的城市高大地物阴影检测方法[J].测绘科学,2015,40(10):110-113.(YAO Huaqin,YANG Shuwen,LIU Zhengjun,et al.Shadow detection method of city large objects based on WorldView-2image[J].Science of Surveying and Mapping,2015,40(10):110-113.)
[18]杨树文,李轶鲲,刘涛,等.基于SPOT5影像自动提取水体的新方法[J].武汉大学学报(信息科学版),2015,40(3):308-314.(YANG Shuwen,LI Yikun,LIU Tao,et al.A new automatic water body feature extraction method based on SPOT5images[J].Geomatics and Information Science of Wuhan University,2015,40(3):308-314.)