| 摘要: |
| 针对目前海量LiDAR数据处理涉及问题复杂、多数算法保密的问题,研究了基于OpenGL技术构建LiDAR数据处理模块的方法,并对模块构建过程中涉及的关键技术,包括LAS格式数据读取、基于OpenGL的LiDAR点云显示、改进的多级移动曲面拟合LIDAR数据滤波算法的实现进行了深入研究。为验证该模块处理LiDAR三维点云数据的正确性,利用该模块进行了LiDAR点云的二维显示、三维显示、滤波处理等。试验结果表明:本研究所开发的LiDAR数据处理模块能够快速、正确的显示和编辑LiDAR点云数据,且有高精度的LiDAR点云滤波结果。 |
| 关键词: OpenGL LiDAR LAS格式 坐标转换 数据滤波 |
| DOI：10.11841/j.issn.1007-4333.2012.02.026 |
| 投稿时间：2011-10-17 |
| 基金项目:国家自然科学基金资助项目(40801128); 上海市教委科研创新项目(12ZZ159) |
|
| Design and implementation of LiDAR data processing module on OpenGL |
|
SU Wei1, DAI Long1, WANG Sen2, LI Qin1, SHEN Wei3
|
| (1.College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China;2.Shandong Provincial Land Surveying and Planning Institute, Ji’nan 250014, China;3.Colledge of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China) |
| Abstract: |
| LiDAR data processing is an urgent problem to be solved in LiDAR technique application area.The LiDAR data processing module on OpenGL was developed in this study,and the key techniques include LiDAR data reading methods of LAS format,presentation of LiDAR points and improved hierarchical moving curved fitting filtering method of LiDAR points.The LiDAR points filtering experiment was done to validate the LiDAR data processing module,and the filtered results were used to confirm the efficiency of this module in presenting and editing LiDAR points. |
| Key words: OpenGL LiDAR LAS format coordinate transformation data filtering |
