Ullmann, Ingrid

Dr.-Ing. Ingrid Ullmann, Akad. Rat

Research Group Leader: Wave-Based Sensing Techniques

Department of Electrical-Electronic-Communication Engineering
Institute of Microwaves and Photonics (LHFT)

Room: Raum 06.238
Cauerstr. 9
91058 Erlangen

Position and Role

Education

  • 2016 M.Sc. in Electrical Engineering at FAU
  • 2021 Ph.D. „Novel Concepts for Radar Imaging in Heterogeneous Media“
  • Currently post-doc and research group leader at LHFT

Research Areas

  • Radar imaging (millimeter-waves, terahertz)
  • Radar signal processing
  • Ultrasound imaging
  • Non-destructive testing
  • Security screening
  • Medical engineering
  • Automotive radar
  • Ground-penetrating radar
  • Machine learning for radar
  • Compressed sensing
  • Radar simulation

Thesis

Topics for student theses are frequently available in the above-mentioned topics.

Publications

  • I. Ullmann, K. Root and M. Vossiek, "Depth Camera Motion Tracking for Motion Compensation and ISAR Imaging in Walk-Through Security Scanners", IEEE Journal of Microwaves, vol. 5, no. 2, pp. 388-398, März, 2025.
    DOI: 10.1109/JMW.2025.3543716
  • L. Engel, J. Müller, E. Rendon, E. Dorschky, D. Krauß, I. Ullmann, B. Eskofier and M. Vossiek, "Advanced Millimeter Wave Radar-Based Human Pose Estimation Enabled by a Deep Learning Neural Network Trained With Optical Motion Capture Ground Truth Data", IEEE Journal of Microwaves, pp. 1-15, Februar, 2025.
    DOI: 10.1109/JMW.2025.3535525
  • N. Hofmann, V. Wirth, J. Bräunig, I. Ullmann, M. Vossiek, T. Weyrich and M. Stamminger, "Inverse Rendering of Near-Field mmWave MIMO Radar for Material Reconstruction", IEEE Journal of Microwaves, pp. 1-17, Februar, 2025.
    DOI: 10.1109/JMW.2025.3535077
  • C. Huber, L. Hageroth, C. Meyer, H. Ermert, I. Ullmann, M. Vossiek and S. Lyer, "Ultrasound-Induced Stable and Inertial Cavitation of Magnetic Nanoparticles for Drug Delivery Applications", Current Directions in Biomedical Engineering, vol. 10, pp. 328-331, Dezember, 2024.
    DOI: 10.1515/cdbme-2024-2080
  • C. Heim, C. Huber, I. Ullmann, S. Lyer and S. Rupitsch, "Ultrasound-based Eigenfrequency Analysis to Determine Material Parameters of Tissue Mimicking Phantoms", Current Directions in Biomedical Engineering, vol. 10, pp. 288-290, Dezember, 2024.
    DOI: 10.1515/cdbme-2024-2070
  • C. Huber, C. Heim, J. Li, H. Ermert, S. Rupitsch, I. Ullmann and S. Lyer, "Magnetomotive Displacement of Magnetic Nanoparticles in Different Tissue Phantoms", Current Directions in Biomedical Engineering, vol. 10, pp. 324-327, Dezember, 2024.
    DOI: 10.1515/cdbme-2024-2079
  • J. Bräunig, S. Heinrich, B. Coppers, C. Kammel, V. Wirth, M. Stamminger, S. Leyendecker, A. Liphardt, I. Ullmann and M. Vossiek, "A Radar-Based Concept for Simultaneous High-Resolution Imaging and Pixel-Wise Velocity Analysis for Tracking Human Motion", IEEE Journal of Microwaves, vol. 4, pp. 639-652, Oktober, 2024.
    DOI: 10.1109/JMW.2024.3453570
  • I. Ullmann et al., "Towards Detecting Climate Change Effects With UAV-Borne Imaging Radars", IEEE Journal of Microwaves, pp. 1-13, September, 2024.
    DOI: 10.1109/JMW.2024.3450015
  • C. Huber, C. Heim, H. Ermert, S. Rupitsch, I. Ullmann, M. Vossiek and S. Lyer, "Ultrasound Phantom of a Carotid Bifurcation Tumor Using Multiple 3D Printed Soluble Filaments", in Proceedings of the 2024 IEEE International Symposium on Biomedical Imaging (ISBI), Athen, August, 2024.
    DOI: 10.1109/ISBI56570.2024.10635132
  • D. Krauß et al., "A Review and Tutorial on Machine Learning- Enabled Radar-Based Biomedical Monitoring", IEEE Open Journal of Engineering in Medicine and Biology, pp. 1-22, Mai, 2024.
    DOI: 10.1109/OJEMB.2024.3397208
  • A. Fröhlich, D. Mejdani, L. Engel, J. Bräunig, C. Kammel, M. Vossiek and I. Ullmann, "A Millimeter-Wave MIMO Radar Network for Human Activity Recognition and Fall Detection", in Proceedings of the 2024 IEEE Radar Conference (RadarConf24), Denver, CO, Mai, 2024.
    DOI: 10.1109/RadarConf2458775.2024.10548702
  • R. Rückert, I. Ullmann, M. Vossiek, A. Kaup and C. Herglotz, "Data Compression for Close-Range Radar Imaging", IEEE Transactions on Radar Systems, vol. 1, no. 2, pp. 421-433, April, 2024.
    DOI: 10.1109/TRS.2024.3387288
  • C. Huber, W. Lahmadi, A. Alballa, C. Heim, S. Rupitsch, H. Ermert, I. Ullmann and S. Lyer, "Water-soluble filament in multifilament approach for ultrasound phantom fabrication", Transactions on Additive Manufacturing Meets Medicine, 2024.
    DOI: 10.18416/AMMM.2024.24091793
  • K. Root, I. Ullmann and M. Vossiek, "Two-Component Scattering Decomposition Technique for Walk-Through Security Scanners Using a Copolarized-MIMO Array", in Proceedings of the 2024 21st European Radar Conference, EuRAD 2024, pp. 312-315, Paris, 2024.
    DOI: 10.23919/EuRAD61604.2024.10734876
  • C. Heim, C. Huber, H. Ermert, I. Ullmann, T. Saleem, S. Lyer and S. Rupitsch, "Modelling and Construction of Complex Shaped Polyvinyl Alcohol based Ultrasound Phantoms for Inverse Magnetomotive Ultrasound Imaging", in Proceedings of the 22. GMA/ITG-Fachtagung Sensoren und Messsysteme 2024, Nürnberg, 2024.
    DOI: 10.5162/sensoren2024/D1.4
  • C. Huber, M. Müller, H. Ermert, C. Heim, S. Rupitsch, I. Ullmann and S. Lyer, "Magnetically Enhanced Ultrasound Strain Elastography to Visualize Magnetic Nanoparticles", in Proceedings of the 22. GMA/ITG-Fachtagung Sensoren und Messsysteme 2024, Nürnberg, 2024.
    DOI: 10.5162/sensoren2024/D3.3
  • I. Ullmann, R. Guendel, N. Kruse, F. Fioranelli and A. Yarovoy, "Classification Strategies for Radar-Based Continuous Human Activity Recognition with Multiple Inputs and Multi-Label Output", IEEE Sensors Journal, pp. 1-1, 2024.
    DOI: 10.1109/JSEN.2024.3429549
  • C. Huber, T. Pavan, I. Ullmann, C. Heim, S. Rupitsch, M. Vossiek, C. Alexiou, H. Ermert and S. Lyer, "A Review on Ultrasound-based Methods to Image the Distribution of Magnetic Nanoparticles in Biomedical Applications", Ultrasound in Medicine and Biology, 2024.
    DOI: 10.1016/j.ultrasmedbio.2024.10.007
  • J. Bräunig, V. Wirth, M. Stamminger, I. Ullmann and M. Vossiek, "An Efficient yet High-Performance Method for Precise Radar-Based Imaging of Human Hand Poses", in Proceedings of the 2024 21st European Radar Conference, EuRAD 2024, pp. 332-335, Paris, 2024.
    DOI: 10.23919/EuRAD61604.2024.10734919
  • K. Root, F. Gumbmann, J. Adametz, I. Ullmann and M. Vossiek, "A MIMO ISAR Approach with Depth Camera Motion Tracking for Improved Imaging in Walk-Through Security Scanners", in Proceedings of the 2023 IEEE International Radar Conference (RADAR), Sydney, Dezember, 2023.
    DOI: 10.1109/RADAR54928.2023.10371188
  • C. Kammel, I. Ullmann and M. Vossiek, "Motion Parameter Estimation of Free-Floating Space Debris Objects Based on MIMO Radar", IEEE Transactions on Radar Systems, vol. 1, pp. 681-697, November, 2023.
    DOI: 10.1109/TRS.2023.3333434
  • I. Ullmann and M. Vossiek, "A Novel, Efficient Algorithm for Subsurface Radar Imaging below a Non-Planar Surface", Sensors, vol. 23, no. 22, pp. 9021, November, 2023.
    DOI: 10.3390/s23229021
  • I. Ullmann, R. Guendel, N. Kruse, F. Fioranelli and A. Yarovoy, "Radar-Based Continuous Human Activity Recognition with Multi-Label Classification", in Proceedings of the IEEE SENSORS, Wien, November, 2023.
  • C. Huber, S. Lyer, H. Ermert, C. Heim, S. Rupitsch and I. Ullmann, "Wall-less Flow Phantoms with 3D printed Soluble Filament for Ultrasonic Experiments", Current Directions in Biomedical Engineering, vol. 9, no. 1, pp. 97-100, September, 2023.
    DOI: 10.1515/cdbme-2023-1025
  • R. Guendel, I. Ullmann, F. Fioranelli and A. Yarovoy, "Continuous People Crowd Monitoring defined as a Regression Problem using Radar Networks", in Proceedings of the European Radar Conference, Berlin, September, 2023.
  • J. Bräunig, V. Wirth, C. Kammel, C. Schüßler, I. Ullmann, M. Stamminger and M. Vossiek, "An Ultra-Efficient Approach for High-Resolution MIMO Radar Imaging of Human Hand Poses", IEEE Transactions on Radar Systems, pp. 1-13, August, 2023.
    DOI: 10.1109/TRS.2023.3309574
  • F. Sheikh et al., "Towards Continuous Real-Time Plant and Insect Monitoring by Miniaturized THz Systems", IEEE Journal of Microwaves, vol. 3, pp. 913-937, Juni, 2023.
    DOI: 10.1109/JMW.2023.3278237
  • L. Engel, D. Khouri, K. Lomakin, A. Hofmann, M. Kleinlein, I. Ullmann, M. Vossiek and G. Gold, "3D Printed Hemispherically Radiating Antenna for Broadband Millimeter Wave Applications", IEEE Open Journal of Antennas and Propagation, vol. 4, pp. 558-570, Mai, 2023.
    DOI: 10.1109/OJAP.2023.3279090
  • C. Huber, K. El Aawar, I. Ullmann, S. Lyer and H. Ermert, "Visualization of Magnetic Nanoparticles by Ultrasound Strain Imaging", in Proceedings of the SMSI 2023 Conference – Sensor and Measurement Science International, pp. 344 - 345, Nürnberg, Mai, 2023.
    DOI: 10.5162/SMSI2023/P33
  • I. Ullmann, R. Guendel, N. Kruse, F. Fioranelli and A. Yarovoy, "A Survey on Radar-Based Continuous Human Activity Recognition", IEEE Journal of Microwaves, pp. 1-13, April, 2023.
    DOI: 10.1109/JMW.2023.3264494
  • C. Kammel, I. Ullmann and M. Vossiek, "MIMO Radar-Based Rotation Parameter Estimation of Non-Cooperative Space Debris Objects", in Proceedings of the Proceedings of the IEEE Radar Conference, San Antonia, TX, 2023.
    DOI: 10.1109/RadarConf2351548.2023.10149661
  • I. Ullmann, J. Schür and M. Vossiek, "Combining radar and ultrasound imaging for surface echo compensation and augmented visibility of interior structures in NDT applications", in Proceedings of the 13th European Conference on Non-Destructive Testing (ECNDT), Lissabon, 2023.
  • J. Bräunig, C. Schüßler, V. Wirth, M. Stamminger, I. Ullmann and M. Vossiek, "A Realistic Radar Ray Tracing Simulator for Hand Pose Imaging", in Proceedings of the EuRAD 2023, Berlin, 2023.
  • B. Eisele, A. Bereyhi, I. Ullmann and R. Müller, "A Novel Antenna Placement Algorithm for Compressive Sensing MIMO Radar", in Proceedings of the 2023 IEEE Radar Conference (RadarConf23), pp. 1-6, San Antonio, TX, USA, 2023.
    DOI: 10.1109/RadarConf2351548.2023.10149680
  • B. Dutta, K. Root, I. Ullmann, F. Wagner, M. Mayr, M. Seuret, M. Thies, D. Stromer, V. Christlein, J. Schür, A. Maier and Y. Huang, "Deep learning for terahertz image denoising in nondestructive historical document analysis", Scientific Reports, vol. 12, pp. 1-11, Dezember, 2022.
    DOI: 10.1038/s41598-022-26957-7
  • D. Hecht, T. Pfahler, I. Ullmann, T. Altstidl, N. Amer, Y. Jin, B. Eskofier and M. Vossiek, "In Vivo Skin-Type Classification Using Millimeter-Wave Near-Field Probe Spectroscopy", in Proceedings of the 2022 52nd European Microwave Conference, Milan, November, 2022.
    DOI: 10.23919/EuMC54642.2022.9924376
  • K. Root, J. Adametz, F. Gumbmann, I. Ullmann and M. Vossiek, "Improved Threat Detection in Walk-Through Security Scanning Using an Optimized Polarimetric Target Decomposition Method", IEEE Journal of Microwaves, pp. 1-13, November, 2022.
    DOI: 10.1109/JMW.2022.3209164
  • A. Grathwohl, M. Stelzig, J. Kanz, P. Fenske, A. Benedikter, C. Knill, I. Ullmann, I. Hajnsek, A. Moreira, G. Krieger, M. Vossiek and C. Waldschmidt, "Taking a Look Beneath the Surface: Multicopter UAV-Based Ground-Penetrating Imaging Radars", IEEE Microwave Magazine, vol. 23, pp. 32-46, September, 2022.
    DOI: 10.1109/MMM.2022.3188126
  • D. Hecht, I. Ullmann, D. Oppelt, T. Pfahler, N. Amer and M. Vossiek, "Millimeter-wave imaging and near-field spectroscopy for burn wound assessment", Frequenz, August, 2022.
    DOI: 10.1515/freq-2022-0100
  • C. Huber, B. George, S. Rupitsch, H. Ermert, I. Ullmann, M. Vossiek and S. Lyer, "Ultrasound-Mediated Cavitation of Magnetic Nanoparticles for Drug Delivery Applications", Current Directions in Biomedical Engineering, vol. 8, no. 2, pp. 568-571, August, 2022.
    DOI: 10.1515/cdbme-2022-1145
  • P. Stief, I. Ullmann, G. Körner, K. Root and M. Vossiek, "Chipless RFID Polarimetric Radar Barcodes Encoded by Dipole Scattering Domains", IEEE Journal of Microwaves, vol. 2, no. 3, pp. 470-479, Juni, 2022.
    DOI: 10.1109/JMW.2022.3178544
  • I. Ullmann, J. Schür, K. Root and M. Vossiek, "Kontaktlose, bildgebende Untersuchung historischer Dokumente im Terahertz-Frequenzbereich", in Proceedings of the Jahrestagung der Deutschen Gesellschaft für Zerstörungsfreie Prüfung (DGZfP) 2022, Kassel, Mai, 2022.
  • C. Schüßler, M. Hoffmann, I. Ullmann, R. Ebelt and M. Vossiek, "Deep Learning Based Image Enhancement for Automotive Radar Trained with an Advanced Virtual Sensor", IEEE Access, pp. 1-1, April, 2022.
    DOI: 10.1109/ACCESS.2022.3166227
  • I. Ullmann, K. Root, J. Schür, L. Scheuble and M. Vossiek, "Contactless Inspection of Handwritten Documents with Terahertz Imaging", in Proceedings of the 18th European Radar Conference (EuRAD 2021), London, April, 2022.
    DOI: 10.23919/eurad50154.2022.9784555
  • K. Root, I. Ullmann, S. Gmehling and M. Vossiek, "Close range ISAR imaging with target velocity determination for security screening applications", in Proceedings of the Emerging Imaging and Sensing Technologies for Security and Defence VI SPIE Security + Defence, Online, September, 2021.
    DOI: 10.1117/12.2602072
  • I. Ullmann, K. Root and M. Vossiek, "Novel Chipless RFID Concept with High Data Capacity", in Proceedings of the IEEE/MTT-S International Microwave Symposium (IMS), Atlanta, GA, Juni, 2021.
    DOI: 10.1109/IMS19712.2021.9575021
  • I. Ullmann and M. Vossiek, "A Computationally Efficient Reconstruction Approach for Imaging Layered Dielectrics With Sparse MIMO Arrays", IEEE Journal of Microwaves, vol. 1, no. 2692-8388, pp. 659-665, März, 2021.
    DOI: 10.1109/JMW.2021.3055869
  • I. Ullmann, "Neuartige Konzepte für die Radarbildgebung in heterogenen Medien", 2021.
  • C. Schüßler, M. Hoffmann, J. Bräunig, I. Ullmann, R. Ebelt and M. Vossiek, "A Realistic Radar Ray Tracing Simulator for Large MIMO-Arrays in Automotive Environments", IEEE Journal of Microwaves, pp. 1-13, 2021.
    DOI: 10.1109/JMW.2021.3104722
  • I. Ullmann, K. Root, K. Lomakin, G. Gold, M. Gottinger, K. Helmreich and M. Vossiek, "Circular Polarization Millimeter-Wave SAR Imaging using 3D-Printed Helix Antennas", in Proceedings of the SPIE Security + Defense Forum, Edingburgh, September, 2020.
    DOI: 10.1117/12.2573952
  • K. Lomakin, M. Sippel, I. Ullmann, K. Helmreich and G. Gold, "3D Printed Helix Antenna for 77 GHz", in Proceedings of the 2020 14th European Conference on Antennas and Propagation (EuCAP), Copenhagen, Denkmark, März, 2020.
    DOI: 10.23919/EuCAP48036.2020.9135996
  • I. Ullmann, P. Egerer, J. Schür and M. Vossiek, "Automated Defect Detection for Non-Destructive Evaluation by Radar Imaging and Machine Learning", in Proceedings of the 13th German Microwave Conference (GeMiC 2020), Cottbus, März, 2020.
  • K. Root, I. Ullmann, F. Seehaus and M. Vossiek, "A Feasibility Study on the Use of Microwave Imaging for In-Vivo Screening of Knee Prostheses", in Proceedings of the International Microwave Symposium, Los Angeles, USA, 2020.
    DOI: 10.1109/IMS30576.2020.9223776
  • I. Ullmann, J. Adametz and M. Vossiek, "SAR Based Non-Destructive Evaluation of Irregularly Shaped Objects with Simultaneous Estimation of Geometry and Permittivity", in Proceedings of the 16th European Radar Conference (EuRAD 2019), Paris, Oktober, 2019.
  • J. Adametz and I. Ullmann, "Polarimetric Decomposition Techniques for Short Range Imaging Radar", in Proceedings of the International Microwave Symposium Workshop on Digital Signal Processing for Microwave Sensors and Imagers, Boston, USA, Juni, 2019.
  • I. Ullmann, G. Körner, J. Adametz and M. Vossiek, "A Multimodal Radar-Ultrasound Imaging Concept for Improved Display of Concealed Objects", IEEE Access, vol. 7, pp. 132057-132065, 2019.
    DOI: 10.1109/ACCESS.2019.2941269
  • I. Ullmann, D. Oppelt, J. Adametz, J. Schür and M. Vossiek, "Terahertz Synthetic Aperture Radar Imaging of Thermal Barrier Coatings on Metal Substrates", in Proceedings of the 8th International Workshop on Terahertz Technology and Applications, Kaiserslautern, März, 2018.
  • I. Ullmann, J. Adametz, D. Oppelt, A. Benedikter and M. Vossiek, "Non-destructive testing of arbitrarily shaped refractive objects with millimetre-wave synthetic aperture radar imaging", Journal of Sensors and Sensor Systems, vol. 7, no. 1, pp. 309-317, 2018.
    DOI: 10.5194/jsss-7-309-2018
  • I. Ullmann, "Millimeter-Wave Radar Image Reconstruction in Heterogeneous Media", in Proceedings of the 47th European Microwave Conference (EuMC), Workshop on Short Range mmWave Imaging Systems, Nuernberg, DE, Oktober, 2017.
  • I. Ullmann, J. Adametz, D. Oppelt and M. Vossiek, "Millimeter Wave Radar Imaging for Non-Destructive Detection of Material Defects", in Proceedings of the 18th International Conference on Sensors and Measurement Technology (SENSOR 2017), Nuernberg, DE, 2017.