Research on cadastral survey method based on 3D reality model and laser point cloud data

In this paper, the three-dimensional real-life model and laser point cloud data are briefly introduced, and then the actual demand of cadastral survey under the background of big data is put forward. Finally, based on this, a new cadastral survey method is developed. Among them, it consists of three links, namely, data acquisition, data processing and the construction of cadastral model map. At the same time, the application effect of this method is verified from the aspects of result precision, work efficiency and comprehensiveness. Through verification, it can be found that, compared with the traditional surveying and mapping method, the surveying and mapping method based on 3D real-life model and laser point cloud data has higher accuracy, faster working efficiency, and can visually display the results, which is far superior to the traditional surveying method, and can be applied to practice.