Publications

2025

• Performance Validation of Coded Wavefront Sensing for Quantitative Phase Imaging of Static and Dynamic Specimens Using Digital Holographic Microscopy
  Syed Muhammad Kazim, Franziska Strasser, Mia Kvåle Lovmø, Andrii Nehrych, Simon Moser, Michał Ziemczonok, Wolfgang Heidrich, Ivo Ihrke and Monika Ritsch-Marte
  Proceedings of International Symposium on Computational Sensing (ISCS) 2025
  
• BSNeRF: Broadband Spectral Neural Radiance Fields for Snapshot Multispectral Light-field Imaging
  Erqi Huang, John Restrepo, Xun Cao and Ivo Ihrke
  Proceedings of International Symposium on Computational Sensing (ISCS) 2025
  
• Direct Image Classification from Fourier Ptychographic Microscopy Measurements without Reconstruction
  Navya Sonal Agarwal, Jan Philipp Schneider, Kanchana Vaishnavi Gandikota, Syed Muhammad Kazim, John Meshreki, Ivo Ihrke and Michael Möller
  Proceedings of International Symposium on Computational Sensing (ISCS) 2025
  
• Stereo SAR for Inundation Modeling in a Landslide Scenario
  Holger Nies, Jorge Leandro and Ivo Ihrke
  Proceedings of International Symposium for Geotechnical Safety and Risk (ISGSR) 2025
  
• Ground-based Passive Radar Imaging Using Geostationary Satellites – Perspectives and Constraints
  Holger Nies, Timur Mulic, Florian Behner, Simon Reuter, and Ivo Ihrke
  IEEE Geoscience and Remote Sensing Letters, pp. 1-5, vol. 22, 2025 [DOI: 10.1109/LGRS.2024.3519770]
  
  
  
  

2024

• Optical System Characterization in Fourier Ptychographic Microscopy.
  J. Meshreki, S. M. Kazim, and I. Ihrke
  Optica Optics Continuum, 3(11):2218-2231, 2024
  
• Leveraging Vignetting in Fourier Ptychographic Microscopy.
  J. Meshreki, S. M. Kazim, J. P. Schneider, M. Moeller, and I. Ihrke,
  IEEE International Conference on Computational Photography (ICCP) – Posters, July 2024.
  
• Learning the Essential in less than 2k Additional Weights – a Simple Approach to Improve Image Classification Stability under Corruptions.
  Kai Bäuerle and Patrick Müller and Syed Muhammad Kazim and Ivo Ihrke and Margret Keuper
  Transactions on Machine Learning Research, June 2024
  [paper]
  
• Ship Tracking and Imaging using DVB-S Signals and a Low-Cost Passive Receiver System
  Holger Nies, Timur Mulic, Florian Behner, Simon Reuter, Ivo Ihrke
  Proceedings of European Conference on Synthetic Aperture Radar (EUSAR) 2024 [paper]
  
• Performance Analysis of Optical Flow Techniques for Airborne SAR Image Registration
  Prithvi Laguduvan Thyagarajan, Holger Nies, Patrick Berens and Ivo Ihrke
  IEEE Transactions on Geoscience and Remote Sensing [DOI: https://doi.org/10.1109/TGRS.2024.3369402]
  

2023

• Modelling Vignetting in Fourier Ptychographic Microscopy
  John Meshreki, Jan-Philipp Schneider, Onofre Martorell, Michael Möller, Ivo Ihrke
  Proceedings of International Symposium on Computational Sensing (ISCS) 2023
  
• SAR Tomography Reconstruction using ISTA and GLRT Techniques
  Prithvi L. Thyagarajan, Holger Nies, Othmar Frey, Joachim Ender, and Ivo Ihrke
  Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) 2023
  
• Complex-Valued End-to-End Deep Network With Coherency Preservation for Complex-Valued SAR Data Reconstruction and Classification
  Reza Mohammadi Asiyabi, Mihai Datcu, Andrei Anghel, Holger Nies
  IEEE Transactions on Geoscience and Remote Sensing [DOI: 10.1109/TGRS.2023.3267185]
  

2022

• Kaleidomicroscope – A Kaleidoscopic Multiview Microscope
  Felix Wechsler, Rainer Heintzmann, Ivo Ihrke
  Proceedings of Computational Optical Sensing and Imaging (COSI) 2022
  
• F-Number and Focal Length of Light Field Systems: A Comparative Study of Field of View, Light Efficiency, Signal to Noise Ratio and Depth of Field
  Ivo Ihrke
  OSA Continuum 1(4), pp. 919-933, 2022
  [paper – open access][data set]
  
• Coregistration of Airborne Synthetic Aperture Radar Data using Optical Flow
  Prithvi Laguduvan Thyagarajan, Patrick Berens, Holger Nies, Ivo Ihrke
  Proceedings of European Conference on Synthetic Aperture Radar (EUSAR) 2022
  
• Complex-Valued Autoencoders with Coherence Preservation for SAR
  Reza Mohammadi Asiyabi, Mihai Datcu, Holger Nies, Andrei Anghel
  Proceedings of European Conference on Synthetic Aperture Radar (EUSAR) 2022
  
• A Comparison of Tomographic SAR Reconstruction Methods Using Spaceborne Data
  Prithvi Laguduvan Thyagarajan, Holger Nies, Florian Behner, Simon Reuter, Otmar Loffeld
  18th European Radar Conference (EuRAD) DOI: 10.23919/EuRAD50154.2022.9784547
  
• Complex-Valued vs. Real-Valued Convolutional Neural Network for Polsar Data Classification
  Reza Mohammadi Asiyabi, Mihai Datcu, Holger Nies, Andrei Anghel
  IGARSS 2022
  [paper – external source]
  
• Characterization of the PAZ X-Band SAR Using the HITCHHIKER Ground Receiver
  Florian Behner, Simon Reuter, Holger Nies, Juan Manuel Cuerda Munoz, Marcos Garcia Rodriguez
  IEEE Geoscience and Remote Sensing Letters
  DOI: 10.1109/LGRS.2021.3102748

2021

• A Comparative Study of PnP and Learning Approaches to Super-Resolution in a Real-World Setting
  Samim Taray, Sunil Jaiswal, Shivam Sharma, Noshaba Cheema, Klaus Illgner-Fehns, Philipp Slusallek, Ivo Ihrke
  Proceedings of GCPR 2021
  [Presentation Video]