摘要
针对传统的监测手段存在的数据源精度不够、监测方法不科学、监测结果不准确等问题,创新性地提出了基于DSM(digital surface model)坡度分析的建筑自动变化监测技术体系,通过对多期高分辨率的DOM(digital orthophoto map)及DSM数据进行差值计算、坡度分析、阈值筛选等处理,最终得到研究区的建筑变化图斑。研究表明,该方法可广泛应用在建筑变化监测领域。
Aiming at the problems of inadequate accuracy of data sources,unscientific monitoring methods and inaccurate monitoring results in traditional monitoring methods,this paper puts forward an innovative technology system to automaticlly monitoring house changes based on DSM slope analysis.,The variation patterns of the housing buildings in the study area are finally obtained by processing the multi-period high resolution DSM and DOM data through difference calculation,slope analysis,threshold screening and so on.Research shows that it can be widely used in the field of housing change monitoring.
作者
姚书朋
史经
林旭芳
赵文智
YAO Shupeng;SHI Jing;LIN Xufang;ZHAO Wenzhi(Guangzhou Zengcheng District Urban and Rural Planning and Surveying and Mapping Geographic Information Institute,Guangzhou 511300,China;Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China)
出处
《测绘地理信息》
CSCD
2021年第6期112-115,共4页
Journal of Geomatics
基金
住房和城乡建设部科技示范工程项目(2013-S5-30)。
关键词
变化监测
差值计算
坡度分析
阈值筛选
change monitoring
difference calculation
slope analysis
threshold screening