Project partners:

Laser scanning is an important tool in cultural heritage for documenting the state of archaeological monuments. The data produced by laser scanning is ever increasing, with the latest generation of laser scanners generating a billion of points in one measurement pass. To colorize the laser scans, additional photographs are taken. Managing these huge amounts of data in terms of size is a challenge on its own, but also to ensure the quality of the resulting point-based models is of utmost importance for the further development of laser scanning as a standard technique in cultural heritage. We identified three topics that can drive forward the integration of laser scanning in the everyday work of archaeologists.

The first topic is the recoloring of point clouds that are combined from several different scan positions. The photographs taken at the different scan positions all exhibit different colorizations of the objects in the scene, as the lighting conditions usually vary from scan position to scan position. We want to develop methods that can provide an artifact free colorized model, independent of the lighting conditions that prevailed during laser scanning. The second topic deals with the management of large point clouds. It incorporates compression of the point cloud data, where the data shall nevertheless remain editable, and the display of large data. Several compression techniques for different point attributes, lossless as well as lossy compression, and fitting points to higher order primitives will be used for compression depending on the further use of the data. To display the data, an eye-tracker can be used to increase the visual experience of the user. The third topic deals with the distribution of data over a network, and navigating through the data, so that users can get access to large point-based models of cultural heritage sites with intuitive navigation capabilities.

Cultural Heritage is a growing market that needs intensive support from enabling technologies like real-time computer graphics and 3D object reconstruction. Especially the preservation and presentation of archaeological or historical items (architecture, artifacts) are of high importance there. Austria is well known in the tourism industry because of its cultural values. Preserving and presenting such cultural values not only physically but also in digital form, will help to distribute these values also using new media channels to the broad public. Any improvement of the technology that helps to preserve cultural items and allows presenting such items and scientific findings to a large audience will improve the value of these cultural items and in the same way boost the tourism industry.

Especially in Austria there is a huge "creative industries" community, small and medium companies working on innovative presentations of cultural goods. Especially these companies will profit from the technology that will be developed in this project. One of these "creative industries" companies is Imagination, partner in this project and pioneer in cultural heritage presentations and preservation software.


  • FFG 825842

Research Areas

  • In this area, we concentrate on algorithms that synthesize images to depict 3D models or scenes, often by simulating or approximating the physics of light.
  • Uses concepts from applied mathematics and computer science to design efficient algorithms for the reconstruction, analysis, manipulation, simulation and transmission of complex 3D models. Example applications are collision detection, reconstruction, compression, occlusion-aware surface handling and improved sampling conditions.


20 Publications found:
Image Bib Reference Publication Type
Sebastian Mazza
Optimized Sorting for Out-of-Core Surface Reconstruction
Bachelor Thesis
Claus Scheiblauer, Norbert Zimmermann, Michael WimmerORCID iD
Workflow for Creating and Rendering Huge Point Models
In Fundamentals of Virtual Archaeology: Theory and Practice, 2017
Article in a Book
Annotations in a point cloud Markus Tragust
Integrating Annotations into a Point-based Rendering System
Master Thesis
Point model of the Wiener Stephansdom consisting of 460 million points Claus Scheiblauer
Interactions with Gigantic Point Clouds
Supervisor: Michael WimmerORCID iD
Duration: December 2006 — July 2014
Test model for sorting Kurt Leimer
External Sorting of Point Clouds
Bachelor Thesis
Stephansdom overdraw with MNO at 1px point size. Claus Scheiblauer, Michael WimmerORCID iD
Analysis of Interactive Editing Operations for Out-of-Core Point-Cloud Hierarchies
In WSCG 2013 Full Paper Proceedings, pages 123-132. June 2013.
Conference Paper
Murat Arikan, Michael Schwärzler, Simon Flöry, Michael WimmerORCID iD, Stefan Maierhofer
O-Snap: Optimization-Based Snapping for Modeling Architecture
ACM Transactions on Graphics, 32(1):6:1-6:15, January 2013. [draft]
Journal Paper with Conference Talk
Graph model in point cloud Claus Scheiblauer, Michael WimmerORCID iD
Graph-based Guidance in Huge Point Clouds
In Proceedings of the 17th International Conference on Cultural Heritage and New Technologies. November 2012.
[paper] [slides]
Conference Paper
Reinhold Preiner, Stefan Jeschke, Michael WimmerORCID iD
Auto Splats: Dynamic Point Cloud Visualization on the GPU
In Proceedings of Eurographics Symposium on Parallel Graphics and Visualization, pages 139-148. May 2012.
Conference Paper
Reinhold Preiner, Michael WimmerORCID iD
Interactive Screen-Space Triangulation for High-Quality Rendering of Point Clouds
TR-186-2-12-01, April 2012 [tech-report]
Technical Report
Stefan Trumpf
Labeling and Leveling of Meshes
Student Project
Markus Tragust
Graph Models for Guided Point Cloud Navigation
Student Project
Point rendering with Gauss splats Claus Scheiblauer, Michael Pregesbauer
Consolidated Visualization of Enormous 3D Scan Point Clouds with Scanopy
In Proceedings of the 16th International Conference on Cultural Heritage and New Technologies, pages 242-247. November 2011.
Conference Paper
Virtual texturing render pipeline Irmengard Mayer, Claus Scheiblauer, Albert Julian Mayer
Virtual Texturing in the Documentation of Cultural Heritage
Geoinformatics FCE CTU, 7, September 2011. [paper draft]
Journal Paper with Conference Talk
Reinhold Preiner
Screen-Space Triangulation for Interactive Point Rendering, 6. June 2011, Austrian-Russian Joint Seminar, Vienna
Selecting points Claus Scheiblauer, Michael WimmerORCID iD
Out-of-Core Selection and Editing of Huge Point Clouds
Computers & Graphics, 35(2):342-351, April 2011. [paper]
Journal Paper (without talk)
Normals estimated in the Domitilla Catacomb model with approximately 2 billion points. Stefan Marek
Normal Estimation of Very Large Point Clouds
[poster] [thesis]
Master Thesis
Trilateral Filtering Gabriele Hebart
Color Adjustment of Colored Range Images
[poster] [thesis]
Master Thesis
Albert Julian Mayer
Virtual Texturing
[poster] [Thesis]
Master Thesis
Michael Probst, Jakub Kolesik
GPU Point Cloud Raytracing
Student Project
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