背包、车载激光扫描结合无人机倾斜航测实践于社区全息数据采集

随着测绘地理信息使用需求的变化及测绘数据获取技术的进步，全息测绘成为新型基础测绘数据生产的一种思路。SLAM背包结合车载激光扫描系统以其灵活、全时、室内外一体、高精度及全息采集的方式，在地面及内部信息的获取中具有效率高、信息全的特点。与无人机倾斜航测相结合采集目标的全景三维信息，融合处理后可获得测区的全息数据，能为社区的信息化建设提供底图数据。本文通过在广东软件园采用GeoSLAM背包、Trimble MX9车载激光扫描系统及大疆M300无人机倾斜航测3种采集方法获取园区全息数据，然后进行标定、匹配、融合、分类和处理，开展要素化、实体化、三维化生产，形成园区的三维对象化地图数据，为智慧社区的位置服务、管理、展示提供了基础底图。试验结果表明，采用激光结合倾斜航测生产的社区全息地图，在丰富性、准确性、完整性、精度上均比传统的光电测距等方法生产的地图更优。

Technical practice of backpack,vehicle-mounted laser scanning combined with UAV oblique aerial survey in community holographic data collection

With the changes in the use requirements of surveying and mapping geographic information and the advancement of surveying and mapping data acquisition technology,holographic surveying and mapping has become a new idea of basic surveying and mapping data production. In this paper,three collection methods of GeoSLAM backpack,Trimble MX9 vehicle-mounted laser scanning system and DJI M300 UAV oblique aerial survey are used in Guangdong Software Park to obtain holographic data in the park,and then carry out calibration,matching,fusion,classification and processing and carry out elementalization,materialized and three-dimensional production to form the three-dimensional object map data of the park,which provides a basic base map for the location service,management and display of the smart community. The results show that the community holographic map produced by laser combined with oblique aerial survey is better than traditional photoelectric ranging methods in terms of richness,accuracy,completeness and precision.