The Possibilities of Using Airborne Laser Scanning Data for the Creation of Orienteering Maps
1Glaner, M.F.; 2Gartner, G.
1TECHNICAL UNIVERSITY OF VIENNA Email: email@example.com
2TECHNICAL UNIVERSITY OF VIENNA Email: firstname.lastname@example.org
Airborne Laser Scanning delivers information on the land surface in the form of threedimensional pointclouds. In forested areas this technology captures the vegetation as well as the terrain below the treetop. Recently the data which arises from Airborne Laser Scanning has started to influence the process of making orienteering maps. Orienteering maps mostly map forested areas and contain a lot of different terrain features. This thesis focus on the possibilities of Airborne Laser Scanning data for the process of making orienteering maps. The key aspects are the manual and automatic detection of terrain features (used programs OL Laser, OCAD 11 and LAStools) and the automatic generation of orienteering maps with the program Karttapullautin. The section about manual detection includes Hillshading, Slope-Image, Pointclassification, Intensity-Image and Vegetation Map and the chapter about automatic detection contours and cliffs. The possibilities and achievements of detecting and classifying terrain features are investigated and exemplary illustrated. The section about automatic generation of orienteering maps analyses the similarities and differences between existing orienteering maps and automatically generated maps created with Karttapullautin. The workflow of Karttapullautin is outlined and experiences and examples are shown. The findings of this thesis show that Airborne Laser Scanning data is quite useful for the process of making orienteering maps. Fieldwork is not completely avoidable and the completely automated generation of adequate orienteering maps is not possible but the process of making orienteering maps can be shortened and simplified. A lot of terrain features can be detected and classified and Karttapullautin delivers considerable results in the automatic generation of orienteering maps.
Orienteering; Airborne Laser Scanning; Map Creating