Currently, the most widespread application area of new technology business in the world is a project that uses drones. In addition to the expansion of application field, the drone is being made at a low cost and high performance.
In this study, we v...
Currently, the most widespread application area of new technology business in the world is a project that uses drones. In addition to the expansion of application field, the drone is being made at a low cost and high performance.
In this study, we verified that the most traditional aerial image and it is possible to generate accurate ortho image by replacing it with a drone image. By using the boundary point coordinate register in which the land boundary point coordinates are recorded without ground reference point measurement, which is essential for accurate ortho image generation, after installation of anti-air mark on land boundary points, using dron image and coordinates of the land boundary points as ground reference points, ortho image and DEM were generated and their accuracy was compared and verified.
For the point that excluding the special topography where the elevation value rapidly changes, the affair image utilizing the drone satisfied the allowable range of the plane maximum error, the standard deviation, and the altitude difference of the job provision of the image map production.
Ortho images using the coordinate values of the boundary point coordinate register without additional ground reference points do not reflect the elevation values. Therefore, although it is impossible to obtain an accurate elevation value in the DEM, the amount of change of the terrain relief was considerably similar to the actual terrain, in the case of the plane error, the area center of the study site satisfied the allowable range.
If 3D coordinates containing not only plane coordinates but also elevation data are registered in the coordinates register of the boundary points, It is possible to construct highly accurate intelligent boundary unit space information with only drone image without additional measurement.