小型无人机低空摄影测量在土地确权应用中的探究——以陕西试点区域为例
发布时间：2019-03-05 21:11
【摘要】：低空摄影测量具有成本低、效率高、时效性强、周期短、灵活性强的优点,能够高效率地获取高分辨率的影像,从而对地表进行快速、实时地调查和监测。以陕西三试点区域为例,应用小型无人机获取高分辨率影像,将此影像利用INPHO全数字摄影测量工作站中的Match AT光束法平差软件进行空三加密与计算,并利用航天远景Map Matrix立测软件进行基本定向点及检查点的精度检查,最终生成高精度的数字正摄影像底图。为了验证此无人机低空摄影测量的时间效率和结果精度,首先将此数字正摄影像底图的精度与传统航测法土地确权的精度指标进行比较与分析,得出此小型无人机低空摄影在土地经营权确权中具有很强的可行性与实用性,然后选用特定数量的影像数量重复执行此工艺过程并对过程进行时间统计,从而在总体工作量很大并保持稳定的情况下,验证了此无人机低空摄影在时间效率上的高效性,最后选用空三完成后影像上明显加密点坐标与实际量测坐标进行比较,得出结果精度满足较大比例尺的测绘成图。
[Abstract]:Low-altitude photogrammetry has the advantages of low cost, high efficiency, strong timeliness, short period and strong flexibility. It can obtain high-resolution images efficiently, so it can quickly and real-time survey and monitor the surface. Taking the three pilot areas in Shaanxi Province as an example, a small UAV was used to obtain high-resolution images. The image was encrypted and calculated by Match AT beam adjustment software in INPHO all-digital photogrammetry workstation. The precision check of the basic orientation point and checkpoint is carried out by using the spaceflight prospective Map Matrix vertical survey software, and finally the high precision digital forward photography image base map is generated. In order to verify the time efficiency and result precision of the UAV low altitude photogrammetry, the accuracy of the digital forward photography base map is compared and analyzed with the precision index of the traditional aerial survey method. It is concluded that the low-altitude photography of this small UAV has a strong feasibility and practicability in the determination of the right to land management, and then select a specific number of images to repeat the process and carry out the time statistics of the process. As a result, the efficiency of the UAV low-altitude photography in time efficiency is verified under the condition that the overall workload is very large and the overall work remains stable. Finally, after the completion of space three, the obvious encrypted point coordinates on the image are compared with the actual measured coordinates. The result shows that the precision of the result meets the large scale mapping.
【作者单位】： 长安大学地质工程与测绘学院;江西农业大学园林与艺术学院;
【基金】：国家自然科学基金项目(211026150341)~~
【分类号】：P231
[Abstract]:Low-altitude photogrammetry has the advantages of low cost, high efficiency, strong timeliness, short period and strong flexibility. It can obtain high-resolution images efficiently, so it can quickly and real-time survey and monitor the surface. Taking the three pilot areas in Shaanxi Province as an example, a small UAV was used to obtain high-resolution images. The image was encrypted and calculated by Match AT beam adjustment software in INPHO all-digital photogrammetry workstation. The precision check of the basic orientation point and checkpoint is carried out by using the spaceflight prospective Map Matrix vertical survey software, and finally the high precision digital forward photography image base map is generated. In order to verify the time efficiency and result precision of the UAV low altitude photogrammetry, the accuracy of the digital forward photography base map is compared and analyzed with the precision index of the traditional aerial survey method. It is concluded that the low-altitude photography of this small UAV has a strong feasibility and practicability in the determination of the right to land management, and then select a specific number of images to repeat the process and carry out the time statistics of the process. As a result, the efficiency of the UAV low-altitude photography in time efficiency is verified under the condition that the overall workload is very large and the overall work remains stable. Finally, after the completion of space three, the obvious encrypted point coordinates on the image are compared with the actual measured coordinates. The result shows that the precision of the result meets the large scale mapping.
【作者单位】： 长安大学地质工程与测绘学院;江西农业大学园林与艺术学院;
【基金】：国家自然科学基金项目(211026150341)~~
【分类号】：P231
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