Application of 3D Laser scanning technology in surveying and mapping of historical buildings——Taking the historical building mapping and filing Project in Minqing County as an example
As the context of a city,historical buildings carry the history of a city.Affected by various factors,they suffer continuous erosion and even loss,and their protection situation is becoming more and more serious.Taking the protection surveying and mapping of historical buildings in Minqing County as an example,this paper explores and studies the construction of true color three-dimensional point cloud model of historical buildings by using three-dimensional laser scanning technology and UAV tilt photography technology,which has accu-mulated valuable technical experience for the filing of Surveying and mapping data of historical buildings and the protection of cultural rel-ics.The conclusion summarizes and analyzes this technology,and holds that the 3D laser scanning technology can not only greatly improve the work efficiency and measurement accuracy,but also realize the three-dimensional visualization of historical buildings,which has broad application prospects.
3D Laser scanning technologyHistorical building mappingPoint cloud dataTilt photography technology of UAV