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Application of Mobile Laser Scanning Data in 3D Cadastre Modeling

Author: HaoMingHui
Tutor: ZhangJiXian；LiuZhengJun
School: Chinese Academy of Surveying and Mapping
Course: Photogrammetry and Remote Sensing
Keywords: 3D cadastre The car laser scanning system (MLS) Land management domain model (LADM) Legal space Physical model
CLC: P271
Type: Master's thesis
Year: 2011
Downloads: 140
Quote: 0
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Abstract


Traditional sense, cadastral registration based on surface ownership as the core based on the two-dimensional plane. With the growth in the total number of the world's population, land consumption is increasing. Ground and underground space development has largely changed the plane and land in the traditional sense of the Master, and lead to a real estate unit superimposed on each other in the vertical direction. Cadastral difficult to two-dimensional space of above and below ground, the diversity and different property rights accurate and appropriate records. Therefore, the scope of management of cadastral systems should also be a three-dimensional extension. The 3D cadastral records and expression of space objects involved in the legal space, and this part of space is often defined as the the entity physical boundaries, a certain range of scale out. The multi-storey buildings and residential building is the most representative and shall be registered in 3D cadastral system real estate unit, its architectural structure affects the space occupied by each unit in the 3D cadastral registration. Therefore, accurate housing physical models to achieve accurate division of the premise of the legal space of the real estate unit. Car laser scanning (Mobile Laser scanning - MLS) system is able to quickly obtain directly from the ground high-precision surface features three-dimensional information, has become an efficient means for real-time data acquisition and three-dimensional reconstruction of urban object space. MLS data and reconstruction of housing model meets the demand of 3D cadastre remains to be tested. This paper to assess the MLS data for three-dimensional cadastral modeling the main purpose to start from the 3D cadastre needs and MLS accuracy assessment two aspects, first of all based on land management domain model LADM the basic framework put forward a can be used 3D cadastre real estate unit expression housing physical model, and subsequently on the basis of the accuracy test by MLS data combined with cadastral maps, followed by extraction of the housing Housing graphic design overall, floors, apartment unit. The study results demonstrate the MLS data can be accurate extraction of the external structure of the housing unit, a feature point such as the 3D coordinate space or geometry information, which has good applicability in the 3D cadastral. Innovation in this article are as follows: (1) to the recently certified by the Technical Committee of the International Organization for Standardization (ISO / TC) of the National Geographic Information Standardization Technical Committee (SAC/TC230) land management domain model LADM as a template, based on the cadastral registration Statutory space - physical entity model \precise expression and registration; (2) Based on the model, this thesis, the development of the extracted by the vehicle-mounted laser scan data housing information combined with cadastral diagram, cadastral records housing unit extraction technology processes, and verify that the vehicle laser scan data in three-dimensional membership system in for 3D Housing property rights body modeling feasibility.

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > Cadastral school > Cadastral Survey
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