不同載體光達輔助地籍測量之研究

The different carrier LiDAR reaches research the assistance cadastral survey

"光達（Light Detection and Ranging, LiDAR）為非接觸式雷射掃描技術，可迅速獲得高密度、高精度地表物體三維空間資訊及反射強度值。透過光達能詳細記錄地表與物體表面高密度點雲資訊特性，達到後續多功能加值應用。地籍測量為二維幾何資訊，對於地上物與地籍之空間相對關係連接較為困難，地籍圖重測時，戶地測量為二維空間資訊；地籍調查表無動態表現，僅記錄當下土地所有權人指界成果，另圖根點因都市更新或工程建設等原因，遺失率隨著時間增加成正比逐年遺失。本研究透過地面光達、車載光達與手持光達等不同載體呈現高精度且巨量三維空間資訊優勢，並利用多時期光達資料融合，展現縱坐標、橫坐標、高程、時間軸之4D 地籍測量，輔助維護半動態基準之地籍調查表、傳統地籍測量所不能更易於瞭解與分析三維地籍與地上物空間關係，以及不同時期光達資料對於原重測指界能因重建或開發消失之恢復與分析、圖根點不落地等效益。而結果證明光達輔助地籍測量是可行的。"

The LiDAR reaches (LiDAR Detection and Ranging, LiDAR) is the non-contact laser scanning technology, but obtains the high density, the high accuracy surface object three-dimensional space information and the reflection intensity value rapidly. Using LiDAR can record in detail the characteristics of high-density point cloud information on surfaces and objects, and realize multifunctional value-added applications. The Resurvey of Cadastral Maps is re-measured as twodimensional spatial information; the cadastral survey has no dynamic performance, recording the results of the current identification of the land owner. The mapping control point of the map is lost due to urban renewal or engineering construction and other reasons. This research presents the advantages of high-precision and a large number of three-dimensional spatial information through different carriers such as terrestrial LiDAR, Vehicle LiDAR, and handheld LiDAR, and uses multi-period LiDAR data fusion to show 4D cadastral surveys of ordinate, abscissa, elevation, and time axis. , Auxiliary semidynamic datum maintenance survey cadastral survey data.The result proves that LiDAR assisted cadastral survey is feasible.