Digital Surface Model Generation with Aerial Surveying System "LEICA ADS80"

The aerial imaging system LiDAR is data collection technology for Digital Surface Models (DSM) and Digital Elevation Models (DEM). Digital line Pushbroom scanner Leica ADS80 can be used to obtain DSM / DEM thanks to the recorded material. The data obtained using the ADS80 provide several advantages over LiDAR results, especially since the generation of orthophotos can be based on the same data set. As a fundamental approach, the principle of Semi-Global Matching (SGM) it is used, which is suitable for the process of calculating digital models of high-performance and high-resolution surfaces. This paper presents the SGM approach during processing images obtained by the ADS80 system, as well as comparing the results obtained using the LiDAR system - in terms of data processing. A comparative analysis and comparison of SGP and LiDAR ALS80 HP properties was performed, which is illustrated on a specific example. It has been shown that SGM can be used as an alternative to the LiDAR system. For certain applications for which it is necessary to generate a digital model of a high-resolution surface or to make orthophotos - thus saving additional flight costs - SGM is the priority choice.