城镇无人机高分辨率三维网格图形建模仿真

High Resolution 3D Mesh Graphic Modeling and Simulation of Urban UAV

针对利用Auto、Constructor和Max Surf软件建立的城镇高分辨率三维网格图形模型,普遍存在建立时间长,建模成本高的问题,为此提出无人机高分辨率三维网格图形建模。通过无人机采集城镇平面图像,在UG环境下完成城镇平面图像的三维建模。建模过程中,通过对城镇原始图像的提取及处理,得到三维实体模型,利用透射反射网格图像线条,将远场域网格和旋转域网格转换成过度网格截面,以适用于不同复杂度的城镇网格图形,实现城镇无人机高分辨率三维网格图形建模。仿真结果表明,城镇无人机高分辨率三维网格图形建立模型所用时间短,成本低,分辨率高,适用能力强,对于无人机采集城镇图像具有重要意义。

In order to solve the problems of long modeling time and high modeling cost of high-resolution 3 D grid graphic models established by Auto, Constructor, and Max Surf software, high-resolution 3 D grid graphic modeling of UAV was proposed. The plane image of the town was collected by UAV and then 3 D modeling of the image was completed in the UG environment. In the process of modeling, the 3 D solid model was built by extracting and processing original images. In addition, the transmission and reflection grid image lines were used to convert the far-field grid and the rotating domain grid into the section of the transitional grid, to apply to grid graphics with different complexity. Finally, high-resolution 3 D grid graphic modeling of urban UAV was achieved. Simulation results show that the high-resolution 3 D grid model of urban UAV has the advantages of short time, low cost, high resolution, and strong applicability, so it is significant for UAV to collect images.