Talks and Poster Presentations (with Proceedings-Entry):
M. Pöchtrager, G. Styhler-Aydin, M. Döring-Williams, N. Pfeifer:
"Automated reconstruction of historic roof structures from point clouds - development and examples";
Talk: 26th International CIPA Symposium 2017,
- 2017-09-01; in: "26th International CIPA Symposium - Digital Workflows for Heritage Conservation",
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences,
The analysis of historic roof constructions is an important task for planning the adaptive reuse of buildings or for maintenance and restoration issues. Current approaches to modeling roof constructions consist of several consecutive operations that need to be done manually or using semi-automatic routines. To increase efficiency and allow the focus to be on analysis rather than on data processing, a set of methods was developed for the fully automated analysis of the roof constructions, including integration of architectural and structural modeling. Terrestrial laser scanning permits high-detail surveying of large-scale structures within a short time. Whereas 3-D laser scan data consist of millions of single points on the object surface, we need a geometric description of structural elements in order to obtain a structural model consisting of beam axis and connections. Preliminary results showed that the developed methods work well for beams in flawless condition with a quadratic cross section and no bending. Deformations or damages such as cracks and cuts on the wooden beams can lead to incomplete representations in the model. Overall, a high degree of automation was achieved.
historical timber structures, LiDAR, point clouds, digital reconstruction
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
Created from the Publication Database of the Vienna University of Technology.