一种快速提取建筑物高度的方法研究
摘要
目前有多种利用单张高分辨率卫星影像计算建筑物高度的模型,但是其适用条件限制了建筑物高度提取的速度和精度。为了解决这一难题,提出利用建筑物投影同名点线段长度估算高度方法,并结合高分辨率影像数据和实测建筑物高度数据对估算结果进行分析。结果表明计算模型正确、精度较高(绝对误差在2.04m以内)、使用参数较少、普适性强,在城市灾害评估与预测方面具有较大的实用潜质。
Height of a building is an important element in the city disaster evaluation and prediction.Up to now,several methods have been developed to estimate the height of a building using single satellite image with a high resolution.However,the accuracy and calculation speed are not ideal for application.To solve this problem,this paper developed a new fast method.In this method,the distance between a pair of matched points was used.The result showed that the accuracy of this new method was higher(less than 2.04 meters)and it could be wildly used in prediction and assessment of city disaster.
Height of a building is an important element in the city disaster evaluation and prediction.Up to now,several methods have been developed to estimate the height of a building using single satellite image with a high resolution.However,the accuracy and calculation speed are not ideal for application.To solve this problem,this paper developed a new fast method.In this method,the distance between a pair of matched points was used.The result showed that the accuracy of this new method was higher(less than 2.04 meters)and it could be wildly used in prediction and assessment of city disaster.
引文
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[2]Chen T E,Shibasaki R.3D Modeling and Visualization of Bu-ildingin Area by Linear Photogrammetry[C].Proceeding of UM3,Japan,1998.
[3]Cao Zhiguo,Chen Hua.Quick3D Reconstruction of the IKO-NOS Satellite Stereo Images[J].Computer and Digital Engi-neering,2006,11(34):9-15.[曹治国,陈华.IKONOS卫星图像的快速三维场景重建[J].计算机与数字工程,2006,11(34):9-15.]
[4]Liu Fengde,Qiu Yi.3D Measurement Based on Ortho-image Pair[J].Science of Surveying and Mapping,2004,7(29):47-49.[刘凤德,邱懿.基于左右正射影像的三维量测方法的研究[J].测绘科学,2004,7(29):47-49.]
[5]He Guojin,Chen Gang,He Xiaoyun,et al.Extracting Build-ings Distribution Information of Different Heights in a City fromthe Shadowsin a Panchromatic SPOTImage[J].Journal of Image and Graphics,2001,6(5):426-428.[何国金,陈刚,何晓云,等.利用SPOT图像阴影提取城市建筑物高度及其分布信息[J].中国图像图形学报,2001,6(5):426-428.]
[6]Tian Xinguang,Zhang Jixian,Zhang Yonghong.Extraction of Heights of Buildings in City from Shadows in QuickBird Im-age[J].Science of Surveying and Mapping,2008,32(2):88-89.[田新光,张继贤,张永红.利用QuickBird影像的阴影提取建筑物高度[J].测绘科学,2008,32(2):88-89.]
[7]Xie Junfei,Li Yanming.The Extraction of Building Distribu-tion Information of Different Heightsin a Cityfromthe Shad-ows in a IKONOSImage[J].Remote Sensingfor Land&Re-sources,2004,(4):4-6.[谢军飞,李延明.利用IKONOS卫星图像阴影提取城市建筑物高度信息[J].国土资源遥感,2004,(4):4-6.]
[8]Zhang Guifang,Shan Xinjian,Yin Jingyuan,et al.The Method to Extract Urban Building’s Height and LocationfromSingle High Resolution Aerial Imagery[J].Seismology and Geology,2007,9(1):180-187.[张桂芳,单新建,尹京苑,等.单幅高空间分辨率卫星图像提取建筑物三维信息的方法研究[J].地震地质,2007,9(1):180-187.]
[9]Ran Qiong,Chi Yaobin,Wang Zhiyong,et al.Research on Build-ing Height Estimation Using ShadowInformation Using Beijing-1Small Satellite Images[J].Remote Sensing Information,2008,4:18-21.[冉琼,迟耀斌,王智勇,等.基于“北京一号”小卫星影像阴影的建筑物高度测算研究[J].遥感信息,2008,4:18-21.]
[10]Liang Shunlin.Quantitative Remote Sensing of Land Surfaces[M].Beijing:Science Press,2009,150-155.[梁顺林.定量遥感[M].北京:科学出版社,2009,150-155.]
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