LIDAR Visualisation

Ljubljana castle visualization

The goal of the project is to develop a web-based visualisation framework that visualises LIDAR terrain data as voxel-based (Minecraft-like) worlds with a realistic ray-tracing based renderer.

The LIDAR (LIght Detection And Ranging)  data is openly accessible from Slovenian Environment Agency since late 2015. It is categorised into 5 classes: 3 heights of vegetation, ground and buildings. We fused the LIDAR data with DOF (Digital Orto-Foto) data for better final composition and coloring. We supplemented the missing building data and added water information from DOF data.

For the purpose of visualization, we developed an interface that enables users to choose a geographical region, select appropriate parameters and produce final rendering of selected area.

References:

Miha Lunar B.Sc. Thesis

LIDAR Visualization Project

VoxelServer (GitHub)

  • [PDF] M. Lunar, C. Bohak, and M. Marolt, "Distributed ray tracing for rendering voxelized lidar geospatial data," in Zbornik petindvajsete mednarodne elektrotehniške in računalniške konference erk 2016, 19. - 21. september 2016, portorož, slovenija, 2016, pp. 55-58.
    [Bibtex]
    @conference{1537129667,
    author={Miha Lunar and Ciril Bohak and Matija Marolt},
    year={2016},
    pages={55-58},
    title={Distributed ray tracing for rendering voxelized LIDAR geospatial data},
    booktitle={Zbornik petindvajsete mednarodne Elektrotehniške in računalniške konference ERK 2016, 19. - 21. september 2016, Portorož, Slovenija},
    }

Data is provided by The Surveying and Mapping Authority of the Republic of Slovenia and Slovenian Environment Agency:

Portal Prostor

Portal eVode

Ljubljana castle visualization
  Večna pot 113, 1000 Ljubljana, Slovenia
  +386 1 479 8259

Laboratory for computer graphics and multimedia
Faculty of computer and information science