Tomography

Subproject S – Tomography – combines service and scientific aspects in four working points (WP). In WP 1 "Conception of computer tomographic recording procedures", the focus is on data acquisition including task-specific recording schemes, whereby several tomographs are used at different locations. In the second work item, "Software basis and data storage", various evaluation programmes are analysed and made available, and concepts for long-term data storage are created. To minimise systematic residual errors of the tomograph, algorithms and concepts are developed in the third work item "System calibration". "Geometric registration", which is the subject of WP 4, comes into play in the analysis of changes in time series recordings or in the integration of recordings from devices with different functional principles. This includes the detection of rigid body movements.

the picture is a visualisation of a CT scan data set of a biological sample, here: transition from stem to leaf — Visualisation of a CT scan data set of a biological sample, here: transition from stem to leaf

Scientist

Subproject Manager

Hans-Gerd Maas

Prof. Dr. sc. techn. habil.

Technische Universität Dresden

Institute of Photogrammetry and Remote Sensing
D-01062 Dresden

Phone: +49 351 463 32859

hans-gerd.maas@tu-dresden.de

Institute website

Subproject Manager

Sven Klinkel

Prof. Dr.-Ing. habil.

RWTH Aachen University, Chair of Structural Analysis and Dynamics

Mies-van-der-Rohe-Str. 1
D-52074 Aachen

Phone: +49 241 80 25088

klinkel@lbb.rwth-aachen.de

Institute website

Research Associate

Frank Liebold

Dr.-Ing.

Technische Universität Dresden

Institute of Photogrammetry and Remote Sensing
D-01062 Dresden

Phone: +49 351 463 36052

frank.liebold@tu-dresden.de

Institute website

Cooperations

SP A03

Fibre Reinforced Plant Organs

SP B01

3D Textile Reinforcements

SP B03

New Interface Structures

SP C01

Internal Shells

SP C03

Multi-Scale Shell Models

SP C04

Stability and Quasi-Ductility

SP D01

3D Printing of Carbon Concrete

SP D03

Analysis of Tomography Data

SP D02

Carbon Concrete Extrusion

SP INF

Information Infrastructure

Publikationen | Publications

Giese, J.; Herbers, M.; Liebold, F.; Wagner, F.; Grzesiak, S.; de Sousa, C.; Pahn, M.; Maas, H.-G.; Marx, S.; Curbach, M.; Beckmann, B. (2023) Investigation of the Crack Behavior of CRC Using 4D Computed Tomography, Photogrammetry, and Fiber Optic Sensing in Buildings 13, issue 10, 2595 – DOI: https://doi.org/10.3390/buildings13102595

Liebold, F.; Bergmann, S.; Bosbach, S.; Adam, V.; Marx, S.; Claßen, M.; Hegger, J.; Maas, H.-G. (2023) Photogrammetric Image Sequence Analysis for Deformation Measurement and Crack Detection Applied to a Shear Test on a Carbon Reinforced Concrete Member in: Ilki, A.; Çavunt, D.; Çavunt, Y. S. [eds.] Building for the Future: Durable, Sustainable, Resilient – Proc. of fib Symposium 2023, 05.–07.06.2023 in Istanbul (Turkey), publ. in: Lecture Notes in Civil Engineering 350, Cham: Springer, p. 1273–1282 – DOI: 10.1007/978-3-031-32511-3_130

Liebold, F.; Lorenzoni, R.; Curosu, I.; Léonard, F.; Mechtcherine, V.; Paciornik, S.; Maas, H.-G. (2021) 3D Least Squares Matching Applied to Micro-Tomography Data in: Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. 43, issue B2, p. 533–539 – DOI: 10.5194/isprs-archives-XLIII-B2-2021-533-2021

Liebold, F.; Maas, H.-G. (2022) An approach to subpixel accuracy widening crack width determination in image sequences in: Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. 48, issue 2/W2-2022, p. 61–68 – DOI: 10.5194/isprs-archives-XLVIII-2-W2-2022-61-2022

Liebold, F.; Maas, H.-G. (2022) 3D-Deformationsanalyse und Rissdetektion in multitemporalen Voxeldaten von Röntgentomographen in: Kersten, T.; Tilly, N. [eds.] 42. Wissenschaftlich-Technische Jahrestagung der DGPF, Band 30, 05./06.10.2022 in Dresden, p. 105–116 – DOI: 10.24407/KXP:1796026123

Liebold, F.; Maas, H.-G. (2022) Computational Optimization of the 3D Least-Squares Matching Algorithm by Direct Calculation of Normal Equations in: Tomography 8, issue 2, p. 760–777 – DOI: 10.3390/tomography8020063

Liebold, F.; Mader, D.; Sardemann, H.; Eltner, A.; Maas, H.-G. (2023) A Bi-radial Model for Lens Distortion Correction of Low-cost UAV Cameras in: Remote Sensing 15, Issue 22, 5283 – DOI: https://doi.org/10.3390/rs15225283

Liebold, F.; Wagner, F.; Giese, J.; Grzesiak, S.; de Sousa, C.; Beckmann, B.; Pahn, M.; Marx, S.; Curbach, M.; Maas, H.-G. (2023) Damage Analysis and Quality Control of Carbon-Reinforced Concrete Beams Based on In Situ Computed Tomography Tests in Buildings 13, issue 10, 2669 – DOI: https://doi.org/10.3390/buildings13102669

Mester, L.; Klempt, V.; Wagner, F.; Scheerer, S.; Klarmann, S.; Vakaliuk, I.; Curbach, M.; Maas, H.-G.; Löhnert, S.; Klinkel, S. (2023) A Comparison of Multiscale Methods for the Modelling of Carbon-Reinforced Concrete Structures in: Ilki, A.; Çavunt, D.; Çavunt, Y. S. [eds.] Building for the Future: Durable, Sustainable, Resilient – Proc. of fib Symposium 2023, 05.–07.06.2023 in Istanbul (Turkey), publ. in: Lecture Notes in Civil Engineering 350, Cham: Springer, p. 1418–1427 – DOI: 10.1007/978-3-031-32511-3_145

Mester, L.; Wagner, F.; Liebold, F.; Klarmann, S.; Maas, H.-G.; Klinkel, S. (2022) Image-based modelling of carbon-fibre reinforced concrete shell structures in: Stokkeland, S.; Braarud, H. C. [eds.] Concrete Innovation for Sustainability – Proc. for the 6th fib International Congress 2022, 12.–16.06.2022 in Oslo (Norway), Oslo: Novus Press, p. 1631–1640.

Studentische Arbeiten | Student’s works

Gebhardt, M. (2023) Entwicklung und Validierung eines Kalibrierkonzeptes für Kameras mit bizonaler radial-symmetrischer Verzeichnung [Masterarbeit].