基于移动车载激光扫描系统的大比例尺地形图成果质量检验

Quality Inspection of Large-scale Topographic Map Based on Mobile Vehicle Laser Scanning System

为了提高大比例尺地形图质量检查工作效率,降低大比例尺质量检查外业工作量与人力成本,本文提出了将移动车载激光扫描技术应用于大比例尺地形图质量检查中,并设计了一整套基于移动车载激光扫描系统的大比例尺地形图质量检查方案。通过与传统大比例尺地形图质量检查方式进行对比,检验使用移动车载激光扫描技术进行大比例尺地形图质量检查的有效性与适用性。通过试验检验移动车载激光扫描技术在大比例尺地形图质量检查中的应用效果,结果表明,移动车载激光扫描系统采集试验区点云数据精度满足1∶1000大比例尺地形图几何精度要求,将全景影像用于辅助地形图地理精度检验可有效降低外业检验时长。因此,将移动车载激光扫描系统应用于大比例尺地形图质量检验中能够优化检验流程,提高质检效率,为建立高效测绘成果质检模式提供新的思路。

In order to improve the efficiency of large-scale topographic map quality inspection and reduce the field workload and labor cost,this paper proposes to apply mobile vehicle laser scanning technology to large-scale topographic map quality inspection,and designs a set of scheme based on mobile vehicle laser scanning system.By comparing with the traditional large-scale topographic map quality inspection methods,this paper tests the effectiveness and applicability of using mobile vehicle laser scanning technology for large-scale topographic map quality inspection.The results show that the accuracy of point cloud data collected by mobile vehicle laser scanning system in the test area meets the geometric accuracy requirements of 1∶1000 large-scale topographic map.Using panoramic image to assist the geographical accuracy inspection of topographic map can effectively reduce the field inspection time.Therefore,the application of mobile vehicle laser scanning system in the quality inspection of large-scale topographic map can optimize the inspection process,improve the quality inspection efficiency,and provide a new idea for establishing an efficient quality inspection mode of surveying and mapping results.