Application of Ground Laser Scanning Fusion Tilt Photography in Demolition Surveying and Mapping
With the rapid development of urbanization,Shenzhen is faced with an increasingly severe problem of insufficient construction space,and urban renewal has become an important way to solve this problem.The traditional demolition surveying and mapping method is to measure the side length of houses and appendages and related data through field survey,and the interior industry calculates the area and pre-pares reports through software,which is difficult to speed up and improve efficiency without increasing costs and meet the accelerating urban renewal work.This paper proposes a new surveying and mapping model based on 3D laser scanning technology and UAV tilt photogrammetry technology,and explores its application in urban renewal and demolition surveying and mapping in Gangxia Village,Futian District,Shenzhen.The test results show that,compared with the traditional surveying and mapping methods,based on the ground laser scanning and oblique pho-tography data to generate massive point cloud data,real three-dimensional model and other results,can quickly produce the floor map of the building,the building side length,size and area accuracy are in line with the requirements of the code,greatly simplifying the field measure-ment work,can quickly meet the production needs.
urban renewaldemolition surveying and mappingthree-dimensional laser scanningoblique photogrammetryreal three-di-mensional model
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