基于高分辨率倾斜三维模型3D产品一体化生产的研究

Integrated Production of DLG\DEM\DOM Based on 3D Model of High Resolution Oblique Photography

智慧城市中的基础数据通常包含三维模型和大比例尺3D产品,传统的生产方式是分开进行作业,耗时长、成本高、效率低。本文提出倾斜三维模型和3D产品一体化生产方法,利用无人机搭载倾斜相机获取高分辨率倾斜影像,自动化建立大场景三维模型,并在此基础上进行3D产品生产。模型精度与DLG精度经过外业实测评定满足大比例尺数据生产规范要求,并能有效减少外业工作量。

The basic data in smart cities usually includes 3 D models and large scale 3 D products. The traditional production method needs to be operated separately, which is time-consuming, costly and inefficient. This paper proposes an integrated production method of tilted 3 D model and 3 D products. The UAV is equipped with a tilt camera to obtain high-resolution tilt images, and a three-dimensional model of large scenes is automatically built. On this basis, 3 D products are produced. The model accuracy and DLG accuracy are evaluated by the field measurement to meet the requirements of large-scale data production specifications, which can effectively reduce the field workload.