随着测绘技术的发展,利用机载三维激光扫描仪获取点云数据,从点云数据中提取模型信息成为现代测绘技术的一种发展趋势.点云数据处理的相关应用也越来越多,点云数据的处理软件参差不齐,需求和功能也各不相同.针对上述问题,在基于QT编程平台下,利用PCL开发机载三维激光扫描仪点云数据处理软件,集中处理点云数据.该系统由点云数据读写、三维显示、点云滤波、网格重构、点拾取、点云分割及NARF关键点提取等功能模块组成.各模块采用面向对象的思想设计,功能易于扩展,以完成进一步的测绘工作.实践表明,该系统具有良好的工程实用价值,可以快速完成机载三维激光扫描仪的数据处理工作.%With the development of surveying and mapping technology, it has become a tendency of modern surveying and mapping technology to use airborne 3D laser scanner to obtain point cloud data, and extract the model information from the point cloud data. Relevant applications of point cloud data processing are also increased quickly, but the point cloud data processing softwares are uneven, and the demand and functions are different as well. In view of the above problems, using PCL to develop the 3D laser scanner point cloud data processing software based on the QT programming platform, the dissertation focuses on processing point cloud data in a software system. The system is composed of point cloud data reading and writing module, three-dimensional display module, point cloud filtering module, mesh reconstruction module, point picking, point cloud segmentation and NARF key points extraction functions. Each module uses the object-oriented thought, in which the function is easy to expand to complete further surveying and mapping work. Practice shows that the system has good engineering practical value and can quickly complete the data processing of airborne 3D laser scanner.
展开▼
