程国旗,张继贤,李阳春,陈欢

• 1:山东科技大学测绘科学与工程学院
• 2:中国测绘科学研究院
• 3:国家测绘产品质量检验测试中心
• 4:贵州省地质环境监测院

摘要(Abstract)：

针对现有方法提取阴影效率慢,提取不完整,估算过程未能实现半自动化甚至自动化的问题,该文基于高分二号影像,提出一种将K-means图像分割算法与阴影后处理结合一体应用在建筑物阴影提取的方法:首先,选择建筑物间隔稀疏,结构规则的城郊区域,利用K-means图像分割获取建筑物阴影、建筑物2类以提取建筑物阴影;其次,通过形态学算法、Canny边缘检测等对阴影后期处理,去除小区域及孔洞填充,边缘信息检测,获取最终建筑物阴影;最后,根据太阳、卫星、建筑物以及阴影长度之间几何关系计算建筑物高度。考虑研究区域户型,每层楼高以2.8 m量测建筑物实际高度作为验证,实验结果表明:利用K-means图像分割能有效提取出阴影区域,与后期阴影优化策略结合,大幅度改善了阴影区域的完整性,获取建筑物高度信息自动化程度得到提高。

关键词(KeyWords)： K-means聚类算法;形态学运算;Canny算法;高分二号影像

Abstract:

Keywords:

基金项目(Foundation): 机载干涉SAR高精度测绘创新交叉团队项目(Q1634);; 国家重点研发子课题项目(G17S301);; 中国测绘科学研究院基本科研业务费项目(7771808);; 河南省高等学校重点科研项目计划资助项目(18B420002)

作者(Author): 程国旗,张继贤,李阳春,陈欢

DOI: 10.16251/j.cnki.1009-2307.2020.08.016

参考文献(References)：

• [1] AHMADI S,VALADAN ZOEJ M J,EBADI H,et al.Automatic urban building boundary extraction from high resolution aerial images using an innovative model of active contours[J].International Journal of Applied Earth Observations and Geoinformation,2010,12(3):150-157.
• [2] 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].地球信息科学学报,2015,17(2):236-243.(SHI Yifang,WANG Xiaoqin,SUN Zhenhai,et al.Urban building heights estimation from the shadow information on ZY-3 image[J].Journal of Geo-information Science,2015,17(2):236-243.)
• [3] JIN X Y,DAVIS C H.Automated building extraction from high-resolution satellite imagery in urban areas using structural,contextual,and spectral information[J].EURASIP Journal on Advances in Signal Processing,2005,2005(14):745309.
• [4] 高贤君,郑学东,沈大江,等.城郊高分影像中利用阴影的建筑物自动提取[J].武汉大学学报(信息科学版),2017,42(10):1350-1357.(GAO Xianjun,ZHENG Xuedong,SHEN Dajiang,et al.Automatic building extraction based on shadow analysis from high resolution images in suburb areas[J].Geomatics and Information Science of Wuhan University,2017,42(10):1350-1357.)
• [5] 田峰,陈冬花,黄新利,等.基于形态学阴影指数的高分二号影像建筑物高度估计[J].遥感技术与应用,2017,32(5):844-850.(TIAN Feng,CHEN Donghua,HUANG Xinli,et al.Building height estimation from GF-2 image based on morphological shadow index[J].Remote Sensing Technology and Application,2017,32(5):844-850.)
• [6] 胡云锋,张千力.结合形态学和光谱特征参数的建筑物阴影提取及其高度估算[J].测绘通报,2018(6):22-26.(HU Yunfeng,ZHANG Qianli.The extraction of building shadow and the estimation of building heights based on morphology and spectral characteristic parameters[J].Bulletin of Surveying and Mapping,2018(6):22-26.)
• [7] 付乾坤,吴波,汪小钦,等.基于形态学建筑物指数的城市建筑物提取及其高度估算[J].遥感技术与应用,2015,30(1):148-154.(FU Qiankun,WU Bo,WANG Xiaoqin,et al.Building extraction and its height estimation over urban areas based on morphological building index[J].Remote Sensing Technology and Application,2015,30(1):148-154.)
• [8] 沈小乐.视觉注意机制下面向对象高分辨率遥感影像建筑物提取[D].武汉:武汉大学,2014.(SHEN Xiaole.Object-oriented building extration from high-resolution remote sensing images based on visual attention mechanism[D].Wuhan:Wuhan University,2014.)
• [9] 霍少峰,顾行发,占玉林,等.利用资源三号卫星影像阴影提取建筑容积率[J].武汉大学学报(信息科学版),2018,43(3):444-450.(HUO Shaofeng,GU Xingfa,ZHAN Yulin,et al.Extracting building plot ratio with shadow of ZY-3 image[J].Geomatics and Information Science of Wuhan University,2018,43(3):444-450.)
• [10] 谢亚坤.基于高分影像阴影的多种场景建筑物高度信息提取方法研究[D].成都:西南交通大学,2018.(XIE Yakun.Research on building height information ation extraction method based on shadow of high-resolution image in multiple scenes[D].Chengdu:Southwest Jiaotong University,2018.)
• [11] 王理政,林祥国,宁晓刚.面向对象的高分辨率遥感影像阴影提取方法[J].测绘科学,2017,42(3):108-113.(WANG Lizheng,LIN Xiangguo,NING Xiaogang.Object oriented method of shadow extraction from high resolution remote sensing imagery[J].Science of Surveying and Mapping,2017,42(3):108-113.)
• [12] 周亚男,沈占锋,骆剑承,等.阴影辅助下的面向对象城市建筑物提取[J].地理与地理信息科学,2010,26(3):37-40.(ZHOU Yanan,SHEN Zhanfeng,LUO Jiancheng,et al.Shadow-assisted object-oriented extraction of urban building[J].Geography and Geo-Information Science,2010,26(3):37-40.)
• [13] 陈亭,祝善友,张桂欣,等.高分辨率遥感影像阴影与立体像对提取建筑物高度比较研究[J].地球信息科学学报,2016,18(9):1267-1175.(CHEN Ting,ZHU Shanyou,ZHANG Guixin,et al.A comparative study on building height extraction based on the shadow information in high reso-lution remote sensing image and stereo images[J].Journal of Geo-information Science,2016,18(9):1267-1175.)
• [14] CHENG F,THIEL K H.Delimiting the building heights in a city from the shadow in a panchromatic SPOT-image:part 1.test of forty-two buildings[J].International Journal of Remote Sensing,1995,16(3):409-415.
• [15]冈萨雷斯,伍兹.数字图像处理[M].阮秋琦,阮宇智,译.3版.北京:电子工业出版社,2011:402-507,463-476.(GONZALEZ R C,WOODS R E.Digital image processing[M]. RUAN Qiuqi, RUAN Yuzhi,translation.3rd ed. Beijing:Publishing House of Electronics Industry,2011:402-507,463-476.)
• [16]SHAO Y,TAFF G N,WALSH S J.Shadow detection and building-height estimation using IKONOS data[J].International Journal of Remote Sensing,2011,32(22):6929-6944.
• [17]李英,李俊英,闫红伟,等.阴影长度法建筑高度数据提取的误差分析[J].测绘科学,2016,41(11):44-49.(LI Ying,LI Junying,YAN Hongwei,et al.Error analysis of building height informaion ectraction based on shadow length method[J].Science of Surveying and Mapping,2016,41(11):44-49.)
• [18]刘同华.基于全色遥感影像的建筑物高度提取方法研究[D].长春:长春理工大学,2017.(LIU Tonghua.Research on the extraction method of buildings height based on panchromatic remote sensing images[D].Changchun:Changchun University of Science and Technology,2017.)