SOME CONTRIBUTIONS TO DERIVING TOPOGRAPHIC FEATURES FROM AIRBORNE LASER SCANNING DATA

Dušan PETROVIC

ABSTRACT: The airborne laser scanning data are one of the most promising source data for deriving different spatial data. This method is widely used in urban environment and forestry, while use for deriving topographic features is still rare. Slovenia has a crucial problem of regular updating of topographic data at different levels. At the moment the largest scale map which is regularly updated is National topographic map at scale 1: 50,000, but again without any detailed data capture in wooded areas. Therefore some tests about possible use of ASL data for that purpose were made. Set of small areas on different parts of Slovenia was chosen, representing different types of terrain, and therefore significant diversity was achieved.

Keywords: Topographic data, airborne laser scanning, terrain features.

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