Project "Digitized Paper Structure"
Most technological paper qualities are directly or indirectly influenced by the three-dimensional paper structure which means the spatial arrangement of fibres, fillers, pores and if necessary of the coating. The main goal of the "Digitized Paper Structure" project was to develop new methods for the detailed analysis of the 3D structure of a paper sample. Therefore, three sub-goals were defined in the project:
- Digitization of paper structure: The first task of the project was the development of an image acquisition concept, which enables digitization of the 3D paper structure with high resolution, sufficient sample size and moderate operating time and costs.
- Segmentation of coating layer: The second part was the development of an efficient 3D segmentation concept which allows the segmentation of the coating layer in the huge 3D data sets.
- Reconstruction of 3D fiber network: The final goal of the project was the design and implementation of algorithms which allow the reconstruction of the complex 3D fiber network from the created data sets.
The figures below show some exemplary results of the current project status. The project is funded until September 2008. For more details about the project please contact mailto:johannes.kritzinger@tugraz.at
- Fiber Video: Fiber.avi
- Fiber Network Video: FiberNet.avi
Publications
- Donoser, M., Wiltsche, M., Bischof, H., and Bauer W. (2005). Paper coating layer analysis based on computer vision methods. In Proceedings of International Conference on Quality Control by Artificial Vision (QCAV), pages 39–44, Nagoya, Japan.
- Wiltsche, M., Donoser, M., Bauer W., and Bischof, H. (2005). A new slicebased concept for 3D paper structure analysis applied to spatial coating layer formation. In Proceedings of Advances in Paper Science and Technology (FRC), pages 853–899, Cambridge, UK.
- Wiltsche, M., Bauer, W., and Donoser, M. (2006). Coating application method and calendering influence on the spatial coating layer formation obtained by an automated serial sectioning method. In Proceedings of TAPPI Advanced Coating Fundamentals Symposium, pages 413-–425, Turku, Finland, Invited Publication.
- Wiltsche, M., Donoser M., and Bauer, W. (2006) Tracking of fibers in 3D paper structures obtained by an automated microtomy method. In Proceedings of Progress in Paper Physics Conference, pages 68–72.
- Wiltsche, M., Donoser, M., and Bauer, W. (2006) First applications of a novel technique for three-dimensional coating layer analysis. In Proceedings of PTS Coating Symposium, pages 39.1–39.15, Baden-Baden, Germany.
- Wiltsche, M., Donoser, M., and Bauer, W. (2006). A novel destructive approach for 3D paper structure analysis. Lenzinger Berichte, 86:90–95.
- Wiltsche, M. and Donoser, M. (2004). Die räumliche Strichdickenverteilung als Anwendung der dreidimensionalen Papierstrukturanalyse. Wochenblatt für Papierfabrikation, 132(18):1082—1088.
- Wiltsche, M. and Donoser, M. (2004). Dreidimensionale Strukturanalyse in Papier. In Österreichische Papierfachtagung, Graz (Austria).
