- Tytuł:
- Proposed Technology of lidar data processing to build DTM
- Autorzy:
-
Błaszczak-Bąk, W.
Janowski, A. - Powiązania:
- https://bibliotekanauki.pl/articles/225720.pdf
- Data publikacji:
- 2009
- Wydawca:
- Politechnika Warszawska. Wydział Geodezji i Kartografii
- Tematy:
-
DTM
LIDAR
kartografia
lidar
cartography - Opis:
- Light Detection and Ranging (LiDAR) is a sensing technology whieh has application in building the Digital Terrain Model (DTM). A point cloud generated from laser scanning makes up the so-called large dataset, which is difficult and sometimes even impossible to use directly. Import of LiDAR point cloud into appropriate software and its processing is time-consuming and demands high computing power. Therefore, it is advisable to optimize the volume of observation results which make up the point cloud. The following paper presents operation of a modified algorithm for optimization of points' number in a large dataset [Błaszczak W., 2006]. The optimization involves reduction and uses existing cartographic generalization methods. The optimized dataset was filtered, and during the process the points representing the terrain were separated from data representing non-ground elements. Filtration was carried out with the application of a proposed new method including trend line in search belts, and the laser power used to register points. The optimized and filtered data set was then used to build a DTM. The results obtained encourage further detailed study of theoretical and empirical character.
- Źródło:
-
Reports on Geodesy; 2009, z. 2/87; 29-38
0867-3179 - Pojawia się w:
- Reports on Geodesy
- Dostawca treści:
- Biblioteka Nauki
Artykuł