Feasibility Study Using UAV Aerial Photogrammetry for a Boundary Verification Survey of a Digitalized Cadastral Area in an Urban City of Taiwan
Feasibility Study Using UAV Aerial Photogrammetry for a Boundary Verification Survey of a Digitalized Cadastral Area in an Urban City of Taiwan
复制标题
使用无人机航空摄影测量对台湾某城市数字化地籍区域进行边界验证测量的可行性研究
DOI：
10.3390/rs12101682
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Cheng
中科院分区：
文献类型：
--
作者：
Shih;Cheng
在台湾数位化地籍区进行土地边界验证测量时，必须测量可能的地块点。这些点用于重叠分析和可能的地块点与数字化地籍图的地图配准，以确定地块点的坐标。根据计算出的控制点和地块点之间的水平距离和角度，使用地面测量对地块进行放样。大多数研究使用地面测量（例如全站仪）来测量可能的地块点。与地面测量相比，无人机航空摄影测量可以提供更多可能的宗地点。因此，对数字化地籍图进行重叠分析，再加上收集可能的地块点，将更加全面。在这项研究中，一个高品质的中画幅相机，具有55毫米的焦距，进行了旋转无人机上的图像，与3厘米的地面采样距离（GSD），飞行300米以上的地面。这些图像是以80%的端部重叠和侧部重叠拍摄的，以增加地形细节的可见性，从而进行立体测绘。根据本研究所进行的测试，无人机航空摄影测量可以准确地提供补充控制点，并协助台湾数字化地籍区的边界核查。
In conducting land boundary verification surveys in digitalized cadastral areas in Taiwan, possible parcel points must be surveyed. These points are employed in the overlap analysis and map registration of possible parcel points and digitalized cadastral maps to identify the coordinates of parcel points. Based on the computed horizontal distance and angle between control points and parcel points, parcels are staked out using ground surveys. Most studies survey possible parcel points using ground surveys with, for example, total stations. Compared with ground surveys, UAV (Unmanned Aerial Vehicle) aerial photogrammetry can provide more possible parcel points. Thus, an overlap analysis of digitalized cadastral maps, combined with the collection of possible parcel points, will be more comprehensive. In this study, a high-quality-medium format camera, with a 55 mm focal length, was carried on a rotary UAV to take images, with a 3 cm ground sampling distance (GSD), flying 300 m above the ground. The images were taken with an 80% end-lap and side-lap to increase the visibility of the terrain details for stereo-mapping. According to the test conducted in this study, UAV aerial photogrammetry can accurately provide supplementary control points and assist in the boundary verification of digitalized cadastral areas in Taiwan.