Prof. Dr.-Ing. Ahmad Osman Professor für das Lehrgebiet Prüftechnologien und Prüfverfahren, insbesondere für Automatisierte Signal- und Bildverarbeitung von Sensordaten
Ingenieurwissenschaften

Kontakt

t +49 (0)681/9302-3628
t +49 (0)681/5867 – 947
Ahmad.Osman@htwsaar.de

Standort

htw saar
Goebenstraße 40
66117 Saarbrücken
Raum 5105

Sprechstunden


Nach Vereinbarung

Ankündigung

Schau Sie sich unser neuestes Projekt an der htw saar an: ComforTex-AI

Save the date: am 15. April 2024 startet Modul 1 des Zertifikatsprogramms für Praktische Anwendungen der Künstlichen Intelligenz in Zusammenarbeit mit dem Continuing Education Center CEC Saar. Die vollständigen Programmdetails finden Sie hier.

Funktion


Forschungs-und Entwicklungsaktivitäten

  • Anwendung von Maschinelles Lernen und Deep Learning Techniken für Themen und Fragestellungen der Industrie
  • Signal-und Bildverarbeitung: Akustische Signatur Analyse, Defekterkennung, Objekterkennung usw.
  • Sensordatenfusion: Evidence Theory 
  • Rekonstruktionsverfahren: 3D-Ultraschall Tomographie
  • Zerstörungsfreie Messverfahren: Ultraschall und Röntgen Verfahren
  • Qualitätskontrolle und Zustandsüberwachung: Produktion, Maschinen, Produkten (z. B. Lebensmittel, Metal, CFK usw.)
  • Assistenzsysteme: Sensoren und Algorithmen für  Assistenzfunktionen mit Einsatz von AR/VR Techniken
  • Weiterbildung am CEC Saar: Praktischer Einsatz von Künstlicher Intelligenz

Mitarbeiter an der htw saar


Vorlesungen

  • Sommersemester 2021: Bildverarbeitung und Mustererkennung
    • Moodle-Link für die Master-Studiengänge: Biomedizinische Technik, Elektro- und Informationstechnik: Automatisierungstechnik, Elektromobilität und Autonomes Fahren, DFHI-Erneuerbare Energien und Systemtechnik

Offene Abschlussarbeiten

Bei Interesse an der Bearbeitung einer Abschlussarbeit aus den folgenden Themengebieten sprechen Sie mich gerne an:

  • Industrielle Bildverarbeitung
  • Computer Vision
  • Künstliche Intelligenz
  • Deep Learning
  • Zerstörungsfreie Prüfung
  • Prozess / Produktüberwachung
  • Data Fusion

Links


Bücher


Publikationen und Konferenzbeiträge

      • 2022:
        • Z. Wei, A. Osman, D. Müller, H. Fernandes, J. R. Tarpani and X. Maldague, "Can deep models benefit from standard preprocessing of pulsed thermography data?," IEEE 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Delft, Netherlands, 2022, pp. 1-2, doi: 10.1109/IRMMW-THz50927.2022.9896112

        • Qinqian Lei, Hai Zhang, Stefano Sfarra, Ahmad Osman, Clemente Ibarra-Castanedo, Xavier P. V. Maldague. "Infrared, Terahertz and Air-Coupled Ultrasonic Non-invasive Inspection for Artworks: A Comparative Study on an Old Hand-Bound Book of the XIXth Century". In book: Advanced Nondestructive and Structural Techniques for Diagnosis, Redesign and Health Monitoring for the Preservation of Cultural Heritage. Springer Nature 2022, DOI:10.1007/978-3-031-03795-5_5.
        • Ahmad Osman. "Artificial Intelligence: a key pillar in the philosophy and concept of NDE 4.0". Invited Speaker to the OnDuty! annual General Meeting and Canadian national NDT Conference, 17-19 May 2022, Windsor, Ontario, Canada.
        • Valeske, Bernd, Tschuncky, Ralf, Leinenbach, Frank, Osman, Ahmad, Wei, Ziang, Römer, Florian, Koster, Dirk, Becker, Kevin and Schwender, Thomas. "Cognitive sensor systems for NDE 4.0: Technology, AI embedding, validation and qualification" tm - Technisches Messen, vol. , no. , 2022. https://doi.org/10.1515/teme-2021-0131.
        • Dominique Albert-Weiss, Ahmad Osman. "Interactive Deep Learning for Shelf Life Prediction of Muskmelons Based on an Active Learning Approach". Sensors 2022, 22 (2) , 414; https://doi.org/10.3390/s22020414 .
        • Tao, Y., Hu, C., Zhang, H., Osman, A. et al. "Automated Defect Detection in Non-planar Objects Using Deep Learning Algorithms". J Nondestruct Eval 41, 14 (2022). https://doi.org/10.1007/s10921-022-00845-6.
      • 2021:
        • Ziang Wei, Ahmad Osman, Daniel Gross, Udo Netzelmann. "Artificial Intelligence for Defect Detection in Infrared Images of Solid Oxide Fuel Cells". Infrared Physics & Technology, 2021,103815, ISSN 1350-4495, https://doi.org/10.1016/j.infrared.2021.103815. (https://www.sciencedirect.com/science/article/pii/S1350449521001870).

        • Ziang Wei, Henrique Coelho Fernandes, José R. Tarpani, Ahmad Osman, Xavier Maldague. "Stacked denoising autoencoder for infrared thermography image enhancement".  IEEE International Conference on Industrial Informatics, INDIN'21,  21-23 July 2021, Palma de Mallorca, Spain.

        • Ahmad Osman, Yuxia Duan, Valerie Kaftandjian. "Applied Artificial Intelligence in NDE". In: Meyendorf N., Ida N., Singh R., Vrana J. (eds) Handbook of Nondestructive Evaluation 4.0. Springer, Cham. https://doi.org/10.1007/978-3-030-48200-8_49-1.

        • Ziang Wei, Ahmad Osman. "Explainable Artificial Intelligence for the NDE4.0". International Conference on NDE 4.0, 14-15 April 2021, Munich, Germany.

        • Xiaobiao Dai, Junping Hu, Hongmei Zhang, Abubakar Shitu, Chunlei Luo, Ahmad Osman, Stefano Sfarra, Yuxia Duan. "Multi-Task Faster R-CNN for Nighttime Pedestrian Detection and Distance Estimation". Infrared Physics & Technology, Volume 115, June 2021, https://doi.org/10.1016/j.infrared.2021.103694

        • Ziang Wei, Henrique Coelho Fernandes, Hans-Georg Herrmann, José R. Tarpani, Ahmad Osman. "A Deep Learning Method for the Impact Damage Segmentation of Curve-Shaped CFRP Specimens Inspected by Infrared Thermography". Sensors 2021, 21, 395. https://doi.org/10.3390/s21020395

      • 2020:
        • Hai Zhang, Stefano Ferrara, Ahmad Osman, Clemente Ibarra-Castanedo, Xavier Maldague. "Using through-transmission mid-wave infrared vision and air-coupled ultrasound for artwork inspection: a case study on mock-ups of Portrait of the Painter's Mother". Insight - Non-Destructive Testing and Condition Monitoring 62(3):123-128, March 2020.DOI: 10.1784/insi.2020.62.3.123.

        • Ahmed Benyahia, Ahmad Osman, Abdessalem Benammar, Abderrezak Guessoum. "New Algorithm Based on S-Transform to Increase Defect Resolution Within Ultrasonic Images". Recent Advances in Engineering Mathematics and Physics, Springer, pp. 245-259, 04 August 2020, https://doi.org/10.1007/978-3-030-39847-7_21

        • Bernd Valeske, Ahmad Osman, Florian Römer, Ralf Tschunky. "Next Generation NDE Sensor Systems as IIoT Elements of Industry 4.0". Research in Nondestructive Evaluation, Volume 31, 2020 - Issue 5-6: Special Issue of Research in NDE focused on NDE 4.0, pp 340-369, 12 Nov 2020. https://doi.org/10.1080/09349847.2020.1841862.

        • Krieg, F.; Kirchhof, J.; Pérez, E.; Schwender, T.; Römer, F.; Osman, A. Locally Optimal Subsampling Strategies for Full Matrix Capture Measurements in Pipe Inspection. Appl. Sci. 2021, 11, 4291. https://doi.org/10.3390/app11094291.

        • Dominique Albert‐Weiss, Egla Hadgini, Matthias Heinrich, Ahmad Osman. "Acoustic Ripeness Classification for Watermelon Fruits using Convolutional Neural Networks". In Proceeding of the 3rd International Symposium on Structural Health Monitoring and Nondestructive Testing 25-26 Nov 2020, Quebeq, Canada (SHM-NDT 2020).

        • Ahmad Osman. "Next Generation NDT - An Enabling Technology for the Factory of the Future". Keynote talk at the 3rd International Symposium on Structural Health Monitoring and Nondestructive Testing 25-26 Nov 2020, Quebeq, Canada (SHM-NDT 2020).

        • Ahmad Osman, “Artificial Intelligence: An Enabling Technology for the NDT of the future”. Keynote talk at XIV Technology regional workshop at Bundesuniversität Uberlândia, 17. November 2020, Brazil.

      • 2019:
        • F. Krieg, S. Kodera, J. Kirchhof, F. Römer, A. Ihlow, S. Lugin, A. Osman, and G. Del Galdo. "3D reconstruction of handheld data by SAFT and its impediment by measurement inaccuracies". In Proceedings of the 2019 IEEE International Ultrasonics Symposium, 6-9 October 2019, Glasgow, Scotland, UK .

        • Caiqi Hu, Yuxia Duan, Shicai Liu, Yiqian Yan, Ning Tao, Ahmad Osman, Clemente Ibarra-Castanedo, Stefano Sfarra, Dapeng Chen, Cunlin Zhang. "LSTM-RNN-based defect classification in honeycomb structures using infrared thermography". Infrared Physics & Technology, 2019. ISSN 1350-4495, https://doi.org/10.1016/j.infrared.2019.103032.

        • Dominique Albert-Weiss, Ahmad Osman, Bernd Valeske. "Digitalisation and Fingerprint Identification of Roman Terra Sigillata Pottery". In: Osman A., Moropoulou A. (eds) Nondestructive Evaluation and Monitoring Technologies, Documentation, Diagnosis and Preservation of Cultural Heritage. Springer Proceedings in Materials, August 2019.

        • Hai Zhang, Stefano Sfarra, Ahmad Osman, Clemente Ibarra-Castanedo, Xavier P.V. Maldague. "Robotized Line-Scan Thermographic Mid-Wave Infrared Vision for Artwork Inspection: A Study on Famous Mock-Ups". In: Osman A., Moropoulou A. (eds) Nondestructive Evaluation and Monitoring Technologies, Documentation, Diagnosis and Preservation of Cultural Heritage. Springer Proceedings in Materials, August 2019.

        • Daniel Gross, Matthias Heinrich, Ahmad Osman, Thomas Waschkies, Ziang Wei. "Hören, was nicht stimmt: Akustisches Sensorsystem mit kognitiver Signalanalyse". Qualität und Zuverlässigkeit QZ-Online, Carl Hanser Verlag, Deutsche Gesellschaft für Qualität e.V, Jahrgang 64 (2019)7, pp. 58-60.

        • F. Krieg, S. Kodera, J. Kirchhof, F. Römer , A. Ihlow , R. Pandey , A. Osman, B. Valeske, S. Lugin, G. Del Galdo. "IZFP-SmartInspect: 3D-Rekonstruktion mit der Synthetic Aperture Focusing Technique für handaufgenommene Ultraschalldaten". DACH-Jahrestagung 2019, 27. – 29. Mai in Friedrichshafen, Deutschland.

        • P. Groß, A. Ihlow, R. Böttcher, S. Bessert, R. Pandey, J. Kirchhof, F. Krieg, F. Römer, A. Osman, G. Del Galdo. "Ein portabler, vielfältig einsetz­ barer 3D ­Positionierer für Synthetik ­Apertur ­Ultraschall­messungen in der ZfP". DACH-Jahrestagung 2019, 27. – 29. Mai in Friedrichshafen, Deutschland.

        • A. Osman and B. Valeske, "Next Generation NDT: An Enabling Technology for the Industry of the Future". Panel discussion with Prof. Dr.-Ing. Ahmad Osman in Dagstuhl Seminar 19151 on Visual Computing in Materials Sciences, 7 – 12 April, 2019.

        • A.O. Chulkov, S. Sfarra, H. Zhang, A. Osman, K. Szielasko, C. Stumm, F. Sarasini, J. Fiorelli, X.P.V. Maldague, V.P. Vavilov. "Evaluating thermal properties of sugarcane bagasse-based composites by using active infrared thermography and terahertz Imaging". Infrared Physics & Technology, Volume 97, 2019, Pages 432-439, ISSN 1350-4495, https://doi.org/10.1016/j.infrared.2019.01.024.

      • 2018:
        • H. Zhang, S. Sfarra, A. Osman, K. Szielasko, C. Stumm, M. Genest, X. P.V. Maldague. "An Infrared-Induced Terahertz Imaging Modality for Foreign Object Detection in a Lightweight Honeycomb Composite Structure". In IEEE Transactions on Industrial Informatics, vol. 14, no. 12, pp. 5629-5636, Dec. 2018.

        • Hai Zhang, Stefano Sfarra, Xavier PV Maldague, Ahmad Osman, Klaus Szielasko, Christooher Stumm, Fabrizio Sarasini, Jacopo Tirillo. "Terahertz Image Improvement for An Environmentally Friendly Sandwich Structure". 2018 IEEE Canadian Conference on Electrical & Computer Engineering (CCECE).

        • H. Zhang, S. Sfarra, A. Osman, C. Szielasko, C. Stumm, F. Sarasini, C. Santulli, X. P.V. Maldague. "Terahertz Amplitude Polynomial Principle Component Regression for Aramid–Basalt Hybrid Composite Laminate Inspection". In IEEE Transactions on Industrial Informatics, vol. 14, no. 12, pp. 5601-5609, Dec. 2018.

        • Hai Zhang, Stefano Sfarra; Ahmad Osman, Fabrizio Sarasini, Udo Netzelmann, Bernd Valeske; Clemente Ibarra Castanedo and Xavier Maldague. "Non-destructive evaluation of low-velocity impact-induced damage in basalt-carbon hybrid composite laminates using eddy current pulsed thermography". Optical Engineering Journal, Volume 58, doi: 10.1117/1.OE.58.4.041602, 27 October 2018.

        • Fabian Krieg, Rick Pandey, Jan Kirchhof, Alexander Ihlow, Florian Römer, Giovanni Del Galdo, Ahmad Osman. "Progressive online 3-D SAFT processing by matrix structure Exploitation". In Proceedings of the 2018 IEEE International Ultrasonics Symposium, October 2018, Kobe, Japan.

        • Fabian Krieg, Sergey Lugin, Jan Kirchhof, Alexander Ihlow, Thomas Schwender, Giovanni del Galdo, Florian Römer, Ahmad Osman. "SAFT processing for manually acquired ultrasonic measurement data with 3D Smart Inspect". International Symposium on Structural Health Monitoring and Nondestructive Testing, 4-5 October 2018, Saarbrücken, Germany.

        • Philipp Groß, Alexander Ihlow, René Böttcher, Steffen Bessert, Fabian Krieg, Jan Kirchhof, Florian Römer, Ahmad Osman and Giovanni Del Galdo. "Design and prototyping of a 3-D positioner for ultrasound quality control measurements“. International Symposium on Structural Health Monitoring and Nondestructive Testing, 4-5 October 2018, Saarbrücken, Germany.

        • Bo Zhang, Ziang Wei, Ahmad Osman, Xiaodan Zhang, Baojun Zhang, Guixi Cai, Xiaohui Han, Qingxiang Zhou, Yang Zhao. "An ultrasonic non-destructive testing method for evaluating resistance spot welding quality“. International Symposium on Structural Health Monitoring and Nondestructive Testing, 04-05 October 2018, Saarbrücken, Germany.

        • Sebastian Semper, Jan Kirchhof, Christoph Wagner, Fabian Krieg, Florian Römer, Ahmad Osman, Giovanni Del Galdo. "Defect Detection from 3D Ultrasonic Measurements using Matrix-free Sparse Recovery Algorithms". In Proceedings of the  26th European Signal Processing Conference (EUSIPCO), September 2018, Rome, Italy.

        • H. Zhang, S. Sfarra, A. Osman, K. Szielasko, C. Stumm, F. Sarasini, X. Maldague. "Infrared and Terahertz time-domain imaging for evaluation of impacted thick homogeneous particleboards of sugarcane bagasse". Proceedings of the 14th Quantitative InfraRed Thermography Conference, 25 – 29 June 2018 in Berlin, Germany.

        • Hai Zhang, Stefano Sfarra, Ahmad Osman, Klaus Szielasko, Christopher Stumm, Marc Genest, Xavier Maldague. "An Infrared-Induced Terahertz Imaging Modality for Foreign Insert Detection in A Glass Fiber-Skinned Lightweight Honeycomb Composite Panel". IEEE Transactions on Industrial Informatics, DOI: 10.1109/TII.2018.2832244, May 2018.

        • Fabian Krieg, Jan Kirchhof, Florian Römer, Alexander Ihlow, Giovanni del Galdo und Ahmad Osman. "Vergleich und Anpassung von 3D-SAFT-Implementierungen im Zeit- und Frequenzbereich für die schnelle Grobblechprüfung". Deutsche Gesellschaft für Zerstörungsfreie Prüfung, Jahrestagung 2018, 7.– 9. Mai 2018, Leipzig, Deutschland.

        • Hai Zhang, Stefano Sfarra, Ahmad Osman, Fabrizio Sarasini, Udo Netzelmann, Stefano Perilli, Clemente Ibarra-Castanedo, and Xavier P. V. Maldague. "Eddy current pulsed thermography for ballistic impact evaluation in basalt-carbon hybrid composite panels". Applied Optics 57, D74-D81 (2018)

        • Zhang, Hai; Avdelidis, Nicolas P.; Osman, Ahmad; Ibarra-Castanedo, Clemente; Sfarra, Stefano; Fernandes, Henrique; Matikas, Theodore E.; Maldague, Xavier P.V. 2018. "Enhanced Infrared Image Processing for Impacted Carbon/Glass Fiber-Reinforced Composite Evaluation". Sensors 18, no. 1: 45.

        • Hai Zhang, Stefano Sfarra, Ahmad Osman, Fabrizio Sarasin, Bernd Valeske, Udo Netzelmann, Nicolas P. Avdelidisa, Clemente Ibarra-Castanedo and Xavier Maldague. "Nondestructive evaluation using eddy current pulsed thermographic imaging of basalt-carbon hybrid fiber-reinforced composite laminates subjected to low-velocity impact loadings". SPIE Smart Structures & Nondestructive Evaluation, 4-8 March 2018, Denver, Colorado, USA.

      • 2017:
        • Valerie Kaftandjian, Ahmad Osman. "Using features extraction and data fusion to enhance NDT reliability of inspection". In Proceedings of Conference and Exhibition on Non-Destructive Evaluation, 14-16 December 2017, Chennai, India.

        • Ahmad Osman, Valerie Kaftandjian. "Characterization of speckle noise in three dimensional ultrasound data of material components". AIMS Materials Science, 2017, 4(4): 920-938. doi: 10.3934/matersci.2017.4.920.

        • Hai Zhang, Clemente Ibarra-Castanedo, Xavier Maldague, Stefano Sfarra, Ahmad Osman, Panagiotis Theodorakeas, Nicolas P. Avdelidis, Maria Koui. "Non-destructive investigation of paintings on canvas by infrared thermography, air-coupled ultrasound and x-ray radiography". In Proceedings of the 10th International Symposium on the Conservation of Monuments in the Mediterranean Basin (MONUBASIN), 20-22 of September 2017, Athens, Greece.

        • Hai Zhang, Stefano Sfarra, Ahmad Osman, Udo Netzelmann, Clemente Ibarra-Castanedo, Stefano Perilli, Fabrizio Sarasini, Xavier Maldague. "Eddy Current Pulsed Thermography for Basalt-Carbon Hybrid Composites Subjected to Ballistic Impacts: A Numerical and Experimental Study". In Proceedings of the14th International Workshop on Advanced Infrared Technology and Applications, AITA 2017, 27-29 September 2017, Quebec, Canada.

        • Fabian Krieg, Jan Kirchhof, Florian Römer, Alexander Ihlow, Christian Grandinetti, Giovanni Del Galdo, Ahmad Osman. "Implementation Issues of 3D SAFT in Time and Frequency Domain for the Fast Inspection of Heavy Plates". In Proceedings of the 2017 IEEE International Ultrasonics Symposium, September 2017, Washington, D.C., USA.

        • Yun Zheng, Matthias Heinrich, Ahmad Osman, Bernd Valeske. "Automated Detection of Geometric Defects on Connecting Rod via Acoustic Resonance Testing“. In the 25th European Signal Processing Conference (EUSIPCO), 28 August to 2 September, 2017, Kos, Greece.

        • Hai Zhang, Stefano Sfarra, Ahmad Osman, Marc Genest, Klaus Szielasko, Clemente Ibarra-Castanedo, Xavier P.V. Maldague. "Nondestructive investigation of lightweight composite panels using ultrasound, infrared and terahertz spectroscopy". In the 19th International Conference on Photoacoustic and Phototermal Phenomena, 16-20 July, 2017, Bilbao, Spain.

        • Michael Kirjanov, Philipp Grzyb, Jörg Hoffmann, Ahmad Osman. "Advanced Driver Assistance Systems for Motorcycles: Concept of a Lane Change Assist". In the 25th International Technical Conference on the Enhanced Safety of Vehicles (ESV), 5-8 June, 2017, Detroit, USA.

        • Jan Kirchhof, Fabian Krieg, Florian Römer, Alexander Ihlow, Ahmad Osman, and Giovanni Del Galdo. "3D-SAFT auf vorverarbeiteten Ultraschallsignalen - schneller messen bei verbesserter Auflösung". In Jahrestagung der Deutschen Gesellschaft für Zerstörungefreie Prüfung (DGZfP), Mai 2017, Koblenz, Deutschland.

        • Jan Kirchhof, Fabian Krieg, Florian Römer, Alexander Ihlow, Ahmad Osman, and Giovanni Del Galdo. "Sparse Signal Recovery for Ultrasonic Detection and Reconstruction of Shadowed Flaws". In Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2017), New Orleans, USA.

        • Prof. Dr. Ahmad Osman: Referent Vortrag über "Qualitätskontrolle mittels Ultraschalltomografie". 64. Heidelberger Bildverarbeitungsforum, 7 März 2017, Fürth, Deutschland.

      • 2016:
        • Jan Kirchhof, Fabian Krieg, Florian Römer, Alexander Ihlow, Ahmad Osman, Giovanni del Galdo. "Speeding up SAFT 3D processing by greedy sparse deconvolution". IEEE International Ultrasonics Symposium, 18-21 September 2016, Tours, France.

      • 2015:
        • Ahmad Osman, Ulf Hassler, Valerie Kaftandjian, Joachim Hornegger. "Automated segmentation of ultrasonic volumetric data of composite materials". Insight - Non-Destructive Testing and Condition Monitoring, Volume 57, Number 3, March 2015, pp. 153-160(8).

      • 2014:
        • Konstantinos Tigkos, Kristina Bliznakova, Aris Dermitzakis, Nicolas Ducros, Ulf Hassler, Zacharias Kamarianakis, Ahmad Osman , Veronique Rebuffel, Mattieu Tartare. "Simulation study for optimization of X-ray inspection setup applied to CFRP aerostructures". International Conference on Industrial Computed Tomography (ICT) at the University of Applied Sciences in Wels in Upper Austria, 25-28 February 2014, Wels, Autria.

        • Ahmad Osman, Valerie Kaftandjian, Ulf Hassler. "Amélioration de la fiabilité d'inspection en CND grâce à la fusion d'information: applications en rayons X et ultrasons". Les Journées Cofrend 2014.

        • Ahmad Osman, Valerie Kaftandjian, Ulf Hassler. "Application of belief functions theory to non destructive testing of industrial pieces". In book: Belief Functions: Theory and Applications, pp.209-218. Online ISBN: 978-3-319-11191-9.

      • 2013:
        • Ahmad Osman. "Automated Evaluation of Three Dimensional Ultrasonic Datasets". PhD thesis, Technical Faculty of the Friedrich-Alexander-University of Erlangen-Nuremberg, INSA-Lyon, ISBN-13: 978-3838137599, June 2013.

        • Yuxia Duan, Stefanie Huebner, Ulf Hassler, Ahmad Osman, Clemente Ibarra-Castanedo , Xavier Maldague. "Quantitative evaluation of optical lock-in and pulsed thermography for aluminum foam material". Infrared Physics & Technology 60, pp. 275-280, 2013.

        • Ulf Hassler, Michael Boehnel, Ahmad Osman, Nils Reims, Michael Salamon, Norman Uhlmann. "High energy CT scanning applied to large aerospace samples". 3rd European Aeronautics Science Network Association International Workshop on Aerostructures, 9-11 October 2013, Milano, Italy.

        • Yuxia Duan, Ahmad Osman, Clemente Ibarra-Castanedo, Ulf Hassler, Xavier Maldague. "A comparative study on manual PoD analysis and automated evaluation of thermography images of composite materials". 16th International Symposium on Applied Electromagnetic and Mechanics, 31st July to 2nd August 2013, Quebec, Canada.

      • 2012:
        • Stefanie Huebner, Ulf Hassler, Yuxia Duan, Ahmad Osman, Xavier Maldague. "Study of the Influence of corrosion on materials properties of Aluminum foams with Computed Tomography and Thermography". 4th symposium for NDT in Aerospace, November 2012, Augsburg, Germany.

        • Ahmad Osman, Valerie Kaftandjian, Ulf Hassler. "Automatic classification of 3D segmented CT data using data fusion and support vector machine". Journal of Electronic Imaging of Spie, Vol. 21 May 2012.

        • Ahmad Osman, Valerie Kaftandjian, Ulf Hassler, Joachim Hornegger. "An automated data processing method dedicated to 3D ultrasonic nondestructive testing of composite pieces". International Symposium on Ultrasound in the Control of Industrial Processes, 18-20 April 2012, Madrid, Spain.

      • 2011:
        • Ahmad Osman, Valerie Kaftandjian, Ulf Hassler. "Improvement of X-ray castings inspection reliability by using Dempster-Shafer data fusion theory". Pattern Recognition Letters 32, Vol. 2 Issue 32, pp. 168-180, 2011.

        • Ahmad Osman, Valerie Kaftandjian, Ulf Hassler. "Interest of data fusion for improvement of classification in X-ray inspection". International Symposium on Digital Industrial Radiology and Computed Tomography, 20-22 June 2011, Berlin, Germany.

      • 2010:
        • Ahmad Osman, Ulf Hassler, Markus Rehak, Randolf Hanke, Valerie Kaftandjian. "Steps towards automated 3D-evaluation of ultrasonic data". International Symposium on NDT in Aerospace, 22-24 November 2010, Hamburg, Germany.

        • Ahmad Osman, Valerie Kaftandjian, Ulf Hassler. "Application of data fusion theory and support vector machine to x-ray castings inspection". In the 10th European Conference on Non-Destructive Testing, 7–11 June 2010, Moscow, Russia.

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