利用无人机影像制作地震灾区三维景观图
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摘要
为实时、准确地获取地震灾区的灾情和灾后重建状况,研究如何利用高分辨率无人机影像制作灾区三维景观图。对无人机影像进行几何纠正、影像拼接,利用摄影测量方法生成实验区的DEM,进而将影像制作成正射影像图;将无人机影像纹理映射到DEM上构建灾区的三维地形景观,并以正射影像图为底图对安置区的地物进行三维建模;最后根据规划和管理需要,编制三维景观系统,实现地震灾区三维景观的浏览、查询与分析。实践表明,采用无人机影像制作的三维景观图具有分辨率高、形象逼真等特点;影像的获取和处理以及系统的编制可为灾区重建提供丰富详实的信息。
To acquire the situation of earthquake disaster and reconstruction region,the paper discusses how to use high-resolution UAV image to make 3D landscape of earthquake disaster region.The paper first briefly reviews correcting and stitching the UAV image,and using photogrammetric method to generate DEM of an experimental area,and then using the image to make into DOM.Then,using UAV image texture to project to the DEM and making the 3D topographic map of earthquake disaster region,and making the 3D mode of resettlement areas with DOM map for base map are introduced.Followed is a systematic description of the development of 3D landscape system.The system can provide function of browse,query and analysis.The result shows that the system of 3D landscape have high resolution,vivid,easy to query and analysis using the UAV image and can provide information for reconstruction detailed.
To acquire the situation of earthquake disaster and reconstruction region,the paper discusses how to use high-resolution UAV image to make 3D landscape of earthquake disaster region.The paper first briefly reviews correcting and stitching the UAV image,and using photogrammetric method to generate DEM of an experimental area,and then using the image to make into DOM.Then,using UAV image texture to project to the DEM and making the 3D topographic map of earthquake disaster region,and making the 3D mode of resettlement areas with DOM map for base map are introduced.Followed is a systematic description of the development of 3D landscape system.The system can provide function of browse,query and analysis.The result shows that the system of 3D landscape have high resolution,vivid,easy to query and analysis using the UAV image and can provide information for reconstruction detailed.
引文
[1]臧克,孙永华,李京,等.微型无人机遥感系统在汶川地震中的应用[J].自然灾害学报,2010,19(3):162-166.
[2]周洁萍,龚建华,王涛,等.汶川地震灾区无人机遥感影像获取与可视化管理系统研究[J].遥感学报,2008,12(6):876-883.
[3]许捍卫,范小虎,任家勇,等.基于SketchUp和ArcGIS的城市三维可视化研究[J].测绘通报,2010(3):52-54.
[4]赵鹏,沈庭芝,单宝堂.微小型无人机遥感图像应用[J].火力与指挥控制,2009,34(7):158-161.
[5]何敬,李永树,鲁恒,等.无人机影像的质量评定及几何处理研究[J].测绘通报,2010(4):22-24.
[6]林剑,鲍光淑,陈绍求,等.GIS数据融入遥感图像理解的模型初探[J].物探化探计算技术,2002,24(1):62-66.
[7]鲁恒,李永树,李何超,等.无人机影像数字处理及在地震灾区重建中的应用[J].西南交通大学学报,2010,45(4):533-538.
[2]周洁萍,龚建华,王涛,等.汶川地震灾区无人机遥感影像获取与可视化管理系统研究[J].遥感学报,2008,12(6):876-883.
[3]许捍卫,范小虎,任家勇,等.基于SketchUp和ArcGIS的城市三维可视化研究[J].测绘通报,2010(3):52-54.
[4]赵鹏,沈庭芝,单宝堂.微小型无人机遥感图像应用[J].火力与指挥控制,2009,34(7):158-161.
[5]何敬,李永树,鲁恒,等.无人机影像的质量评定及几何处理研究[J].测绘通报,2010(4):22-24.
[6]林剑,鲍光淑,陈绍求,等.GIS数据融入遥感图像理解的模型初探[J].物探化探计算技术,2002,24(1):62-66.
[7]鲁恒,李永树,李何超,等.无人机影像数字处理及在地震灾区重建中的应用[J].西南交通大学学报,2010,45(4):533-538.
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