基于实景三维的东莞自建住宅提取与特征分析  

Extraction and analysis of self-built house in Dongguan based on 3D real scene

作　　者：张适然 陈明辉[2] 黄燕[2] ZHANG Shiran;CHEN Minghui;HUANG Yan(College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou 510642,China;Dongguan Geographic Information and Urban Planning Research Center,Dongguan 523000,China)

机构地区：[1]华南农业大学林学与风景园林学院,广东广州510642 [2]东莞市地理信息与规划编制研究中心,广东东莞523000

出　　处：《测绘通报》2023年第5期120-124,163,共6页Bulletin of Surveying and Mapping

基　　金：国家自然科学基金(41671398,41401432);广东省科技创新战略专项(pdjh2023a0078)。

摘　　要：无人机倾斜摄影技术可快速获取丰富而全面的建筑物纹理,对自建住宅的提取具有重要意义。本文基于无人机倾斜摄影测量技术制作实景三维成果,直观真实地展现和提取东莞市存量自建住宅底数,并建立自建住宅数据库,实现全市自建住宅“一盘棋”管理。应用GIS空间分析功能,从自建住宅规模、空间分布、建筑结构和人口居住角度展开定量分析。结果表明,东莞自建住宅数量规模大,占用土地资源较多,存在一定的安全隐患,且承载大量居住人口,空间上沿旧城镇、城市主干道和河流沿线呈集聚分布,可为政府部门制定相关政策提供参考依据。UAV tilt photography technology can quickly obtain abundant and comprehensive building texture,and plays an important role in the extraction of self-built housing.This research is based on the UAV tilt photography technology producing 3D real scene,which intuitively shows and extracts the self-built housings in Dongguan,as a results establishes a self-built housing database,so as to realize the“coordination and management of all self-built housing information like moves on a chessboard”.By applying GIS,the scales,spatial distributions,building structures and population living habits of self-built housing are quantitatively obtained.The analysis displays that Dongguan has a large number of self-built housing,which occupies a lot of land resources,has potential safety hazards and carries a huge number of residents.The houses are clustered along old towns,urban trunk roads and rivers.This research can provide a reference for the government to formulate relevant policies.

关 键 词：实景三维 倾斜摄影测量 自建住宅 遥感解译 无人机 

分 类 号：P23[天文地球—摄影测量与遥感]