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Monday, September 28 • 08:30 - 10:30
Tu 107 - Recent Trends in ... (I)

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Recent Trends in Automation of 3D Laser Scan Processing for Digital Heritage Applications
Andreas Nüchter, Dorit Borrmann and Hamidreza Houshiar

Documentation of heritage buildings and archaeological excavation sites with conventional methods and tools such as hand drawings, measuring tape and archaeological notes is time consuming. In such a situation, 3D technology, such as 3D laser scanning helps, as it highly reliably gages and digitized environments. But, even with the current 3D technologies a wide category of heritage scenarios, as natural and built structures located underground or under dense vegetation, would need long and expensive surveys in addition to long post-processing procedures. 3D mobile technologies, which have been demonstrated to be effective in 3D mapping, are not usable in such conditions for the lack of the positioning information given by the satellite coverage.

The tutorial introduces recent trends in robotics, mobile mapping and advances in post-processing the data, such that a higher degree of automation is achieved. The main objectives are:
  • Discussing the automation of 3D scan acquisition for digital heritage applications.
  • Understanding the hardware and sensor issues one has to deal with.
  • Getting to know a framework that allows the direct digitization of the archaeological sites with 3D laser scanner and generation of digital documentation of the excavation process.
  • Presenting examples of robotic mapping for full 3D color model generation of cultural heritage sites.

Outline
The tutorial consists of presentations, software demonstrations and software trials dealing with:
  • Robots for gaging and digitizing digital heritage and archaeological sites
  • Calibration, i.e., finding the extrinsic orientation of all sensors, and sensor co-calibration
  • Automated registration of 3D laser scanning data: robotic mapping methods like SLAM (simultaneous localization and mapping) and SFM (structure from motion)
  • Automatic coloring of point clouds with data from RGB cameras
  • Post-processing the data automatically, such as mesh generation, viewing and inspection of 3D data
  • CASTLE3D - A Computer aided system for labeling archaeological excavations in 3D
  • On-site semantic mapping and measuring of archaeological findings
  • Geo-referencing and digital documentation
  • Archaeological database for documentation and reasoning
  • Segmentation and CAD-model generation of findings
  • Roadmap and future trends in robotics and computer science

Moderators
avatar for Dorit Borrmann

Dorit Borrmann

PhD Student, Julius Maximilian University of Würzburg
avatar for Hamidreza Houshiar

Hamidreza Houshiar

PhD Student, Julius Maximilian University of Würzburg

Monday September 28, 2015 08:30 - 10:30
Parque de las Ciencias - Aula Sagan Avenida de la Ciencia, s/n, 18006 Granada

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