Application of 3D Laser Scanning Technology in Urban Green Space Landscape Planning

In order to improve the approximation of three-dimensional landscape and optimize the urban green space landscape planning, the author proposes the application of 3D laser scanning technology in urban green space landscape planning. The application system includes a landscape data collection and management module, a model landscape design module and a three-dimensional landscape display module, the landscape data collection and management module uses airborne lidar to collect, and process basic 3D landscape data. The model landscape design module uses the data to realize terrain simulation and design using the regular grid method, and uses the LOD algorithm based on the improved level of detail to complete the three-dimensional landscape rendering; The 3D landscape display module allows you to view the design effect of the 3D landscape. Experimental results show that the terrain simulated and designed by the system has a high approximation degree with the real terrain, and the average approximation degree is as high as 98%. Conclusion: The three-dimensional landscape designed by the author has a clear effect, can display the real landscape in detail, and has a good application prospect.