倾斜摄影测量数据轻量化处理工具设计与实现

Design and Implementation of Lightweight Processing Tool of Oblique Photogrammetry Data

针对现有倾斜摄影测量数据轻量化软件处理功能单一、处理效果不佳等问题,设计并实现了一种轻量化处理工具,为用户提供模型简化、顶层合并、重置LOD参数和数据压缩等功能。利用无人机航拍数据进行实验,分别从轻量化处理前后的数据量、模型点平面高程精度和模型精细度进行分析。结果表明该工具处理后的倾斜摄影测量数据具有数据量小、加载速度快、渲染效率高、保真度较高等特点,说明该工具具有较好的处理能力,能够满足用户数据轻量化处理需求。

In response to the limitations of existing software for lightweight processing of oblique photogrammetric data,such as limited functionality and unsatisfactory processing results,we designed and implemented a lightweight processing tool,which could provide users with functionalities such as model simplification,top-level merging,LOD parameter resetting and data compression.We used unmanned aerial vehicle(UAV)aerial imagery data to conduct experimental evaluations,and analyzed the data volume,planimetric and elevation accuracy of model points and model detail before and after lightweight processing.The experimental results demonstrate that the processed data exhibits characteristics in reduced data volume,faster loading speed,improved rendering efficiency and higher fidelity,which can indicate that the tool has strong processing capabilities and meet the user’s requirements for lightweight data processing.