A physics-constrained deep learning framework for actual evapotranspiration estimation using ground station observations and remote sensing data - Lingyue Wang; Ping Hu; Hongwei Zheng; Jie Bai; Ying Liu; Xingwen Cao; Olaf Hellwich; Tie Liu; Anming Bao; Xi Chen (Environ. Model. Softw., 2025)

ClipArtGAN: An Application of Pix2Pix Generative Adversarial Network for Clip Art Generation - Reham H. Elnabawy; Slim Abdennadher; Olaf Hellwich; Seif Eldawlatly (Multim. Tools Appl., 2025)

Swin-\(\): Gradient-Based Image Restoration from Image Sequences using Video Swin-Transformers - Monika Kwiatkowski; Simon Matern; Olaf Hellwich (IEEE/CVF Winter Conference on Applications of Computer Vision, WACV 2025, Tucson, AZ, USA, February 26 - March 6, 2025, 2025)

MonoPP: Metric-Scaled Self-Supervised Monocular Depth Estimation by Planar-Parallax Geometry in Automotive Applications - Gasser Elazab; Torben Gräber; Michael Unterreiner; Olaf Hellwich (IEEE/CVF Winter Conference on Applications of Computer Vision, WACV 2025, Tucson, AZ, USA, February 26 - March 6, 2025, 2025)

Tracking Mouse from Incomplete Body-Part Observations and Deep-Learned Deformable-Mouse Model Motion-Track Constraint for Behavior Analysis - Olaf Hellwich; Niek Andresen; Katharina Hohlbaum; Marcus N. Boon; Monika Kwiatkowski; Simon Matern; Patrik Reiske; Henning Sprekeler; Christa Thöne-Reineke; Lars Lewejohann; Huma Ghani Zada; Michael Brück; et al. (CoRR, 2025)

Mouse Lockbox Dataset: Behavior Recognition for Mice Solving Lockboxes - Patrik Reiske; Marcus N. Boon; Niek Andresen; Soledad Traverso; Katharina Hohlbaum; Lars Lewejohann; Christa Thöne-Reineke; Olaf Hellwich; Henning Sprekeler (CoRR, 2025)

Building an Integrative System: Enriching Gesture Language Video Recognition through the Multi-Stream of Hybrid and Improved Deep Learning Models with an Adaptive Decision System - Anwar Mira; Olaf Hellwich (Inteligencia Artif., 2024)

An Embedded Neural Network Approach for Reinforcing Deep Learning: Advancing Hand Gesture Recognition - Anwar Mira; Olaf Hellwich (J. Univers. Comput. Sci., 2024)

Modeling and Locating the Wind Erosion at the Dry Bottom of the Aral Sea Based on an InSAR Temporal Decorrelation Decomposition Model - Yubin Song; Xuelian Xun; Hongwei Zheng; Xi Chen; Anming Bao; Ying Liu; Geping Luo; Jiaqiang Lei; Wenqiang Xu; Tie Liu; Olaf Hellwich; Qing Guan (Remote. Sens., 2024)

Deep learning models beyond temporal frame-wise features for hand gesture video recognition - Anwar Mira; Olaf Hellwich (J. Supercomput., 2024)

Multi-Task Multi-Modal Self-Supervised Learning for Facial Expression Recognition - Marah Halawa; Florian Blume; Pia Bideau; Martin Maier; Rasha Abdel Rahman; Olaf Hellwich (IEEE/CVF Conference on Computer Vision and Pattern Recognition, CVPR 2024 - Workshops, Seattle, WA, USA, June 17-18, 2024, 2024)

Exploring Dimensional Collapse in Self-Supervised Video Representation Learning - Paul Kapust; Monika Kwiatkowski; Olaf Hellwich; Patrik Reiske (The Second Tiny Papers Track at ICLR 2024, Tiny Papers @ ICLR 2024, Vienna, Austria, May 11, 2024, 2024)

Nonverbal Immediacy Analysis in Education: A Multimodal Computational Model - Uros Petkovic; Jonas Frenkel; Olaf Hellwich; Rebecca Lazarides (From Animals to Animats 17 - 17th International Conference on Simulation of Adaptive Behavior, SAB 2024, Irvine, CA, USA, September 9-12, 2024, Proceedings, 2024)

SIDAR: Synthetic Image Dataset for Alignment & Restoration - Monika Kwiatkowski; Simon Matern; Olaf Hellwich (Proceedings of the 19th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, VISIGRAPP 2024, Volume 3: VISAPP, Rome, Italy, February 27-29, 2024, 2024)

Multi-Task Multi-Modal Self-Supervised Learning for Facial Expression Recognition - Marah Halawa; Florian Blume; Pia Bideau; Martin Maier; Rasha Abdel Rahman; Olaf Hellwich (CoRR, 2024)

Nonverbal Immediacy Analysis in Education: A Multimodal Computational Model - Uros Petkovic; Jonas Frenkel; Olaf Hellwich; Rebecca Lazarides (CoRR, 2024)

ConDL: Detector-Free Dense Image Matching - Monika Kwiatkowski; Simon Matern; Olaf Hellwich (CoRR, 2024)

How Do You Perceive My Face? Recognizing Facial Expressions in Multi-Modal Context by Modeling Mental Representations - Florian Blume; Runfeng Qu; Pia Bideau; Martin Maier; Rasha Abdel Rahman; Olaf Hellwich (CoRR, 2024)

MonoPP: Metric-Scaled Self-Supervised Monocular Depth Estimation by Planar-Parallax Geometry in Automotive Applications - Gasser Elazab; Torben Gräber; Michael Unterreiner; Olaf Hellwich (CoRR, 2024)

Objects guide human gaze behavior in dynamic real-world scenes - Nicolas Roth; Martin Rolfs; Olaf Hellwich; Klaus Obermayer (PLoS Comput. Biol., 2023)

Calibration and Registration Method for Tomography-Based Laser-Guided Surgical Interventions using a 4-DOF Navigation Robot - Samuel Müller; Olaf Hellwich; Daniel Szymanski; Hardik Jain; Timo Krüger (36th IEEE International Symposium on Computer-Based Medical Systems, CBMS 2023, L'Aquila, Italy, June 22-24, 2023, 2023)

A novel Traffic Sign Dataset with Condition Annotations - Hanni Sandhu; Joana Kühne; Oliver Sawade; Martin Stellmacher; Elmar Matthes; Olaf Hellwich (IEEE Symposium Series on Computational Intelligence, SSCI 2023, Mexico City, Mexico, December 5-8, 2023, 2023)

Upper Bound Tracker: A Multi-Animal Tracking Solution for Closed Laboratory Settings - Alexander Dolokov; Niek Andresen; Katharina Hohlbaum; Christa Thöne-Reineke; Lars Lewejohann; Olaf Hellwich (Proceedings of the 18th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, VISIGRAPP 2023, Volume 5: VISAPP, Lisbon, Portugal, February 19-21, 2023, 2023)

SIDAR: Synthetic Image Dataset for Alignment & Restoration - Monika Kwiatkowski; Simon Matern; Olaf Hellwich (CoRR, 2023)

DIAR: Deep Image Alignment and Reconstruction using Swin Transformers - Monika Kwiatkowski; Simon Matern; Olaf Hellwich (CoRR, 2023)

Decomposer: Semi-supervised Learning of Image Restoration and Image Decomposition - Boris Meinardus; Mariusz Trzeciakiewicz; Tim Herzig; Monika Kwiatkowski; Simon Matern; Olaf Hellwich (CoRR, 2023)

IMD-Net: A Deep Learning-Based Icosahedral Mesh Denoising Network - Jan Botsch; Hardik Jain; Olaf Hellwich (IEEE Access, 2022)

A joint learning Im-BiLSTM model for incomplete time-series Sentinel-2A data imputation and crop classification - Baili Chen; Hongwei Zheng; Lili Wang; Olaf Hellwich; Chunbo Chen; Liao Yang; Tie Liu; Geping Luo; Anming Bao; Xi Chen (Int. J. Appl. Earth Obs. Geoinformation, 2022)

A Global Meta-Analysis of Soil Salinity Prediction Integrating Satellite Remote Sensing, Soil Sampling, and Machine Learning - Haiyang Shi; Olaf Hellwich; Geping Luo; Chunbo Chen; Huili He; Friday Uchenna Ochege; Tim Van de Voorde; Alishir Kurban; Philippe De Maeyer (IEEE Trans. Geosci. Remote. Sens., 2022)

A YOLO-based Object Simplification Approach for Visual Prostheses - Reham H. Elnabawy; Slim Abdennadher; Olaf Hellwich; Seif Eldawlatly (35th IEEE International Symposium on Computer-Based Medical Systems, CBMS 2022, Shenzen, China, July 21-23, 2022, 2022)

How Do You Perceive My Face? Recognizing Facial Expressions in Multi-modal Context by Modeling Mental Representations - Florian Blume; Runfeng Qu; Pia Bideau; Martin Maier; Rasha Abdel Rahman; Olaf Hellwich (Pattern Recognition - 46th DAGM German Conference, DAGM GCPR 2024, Munich, Germany, September 10-13, 2024, Proceedings, Part II, 2022)

Action-Based Contrastive Learning for Trajectory Prediction - Marah Halawa; Olaf Hellwich; Pia Bideau (Computer Vision - ECCV 2022 - 17th European Conference, Tel Aviv, Israel, October 23-27, 2022, Proceedings, Part XXXIX, 2022)

DIAR: Deep Image Alignment and Reconstruction Using Swin Transformers - Monika Kwiatkowski; Simon Matern; Olaf Hellwich (Computer Vision, Imaging and Computer Graphics Theory and Applications - 17th International Joint Conference, VISIGRAPP 2022, Virtual Event, February 6-8, 2022, Revised Selected Papers, 2022)

Specularity, Shadow, and Occlusion Removal from Image Sequences using Deep Residual Sets - Monika Kwiatkowski; Olaf Hellwich (Proceedings of the 17th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, VISIGRAPP 2022, Volume 4: VISAPP, Online Streaming, February 6-8, 2022, 2022)

Action-based Contrastive Learning for Trajectory Prediction - Marah Halawa; Olaf Hellwich; Pia Bideau (CoRR, 2022)

Image-based Detection of Surface Defects in Concrete during Construction - Dominik Kuhnke; Monika Kwiatkowski; Olaf Hellwich (CoRR, 2022)

Content-Based Landmark Retrieval Combining Global and Local Features using Siamese Neural Networks - Tianyi Hu; Monika Kwiatkowski; Simon Matern; Olaf Hellwich (CoRR, 2022)

Pixel2point: 3D Object Reconstruction From a Single Image Using CNN and Initial Sphere - Ahmed J. Afifi; Jannes Magnusson; Toufique Ahmed Soomro; Olaf Hellwich (IEEE Access, 2021)

Fusion of Multispectral LiDAR, Hyperspectral, and RGB Data for Urban Land Cover Classification - Ronny Hänsch; Olaf Hellwich (IEEE Geosci. Remote. Sens. Lett., 2021)

A Power Efficiency Enhancements of a Multi-Bit Accelerator for Memory Prohibitive Deep Neural Networks - Suhas Shivapakash; Hardik Jain; Olaf Hellwich; Friedel Gerfers (IEEE Open J. Circuits Syst., 2021)

Analysis of the Impacts of Environmental Factors on Rat Hole Density in the Northern Slope of the Tienshan Mountains with Satellite Remote Sensing Data - Haiyang Shi; Qun Pan; Geping Luo; Olaf Hellwich; Chunbo Chen; Tim Van de Voorde; Alishir Kurban; Philippe De Maeyer; Shixin Wu (Remote. Sens., 2021)

GenIcoNet: Generative Icosahedral Mesh Convolutional Network - Hardik Jain; Olaf Hellwich (International Conference on 3D Vision, 3DV 2021, London, United Kingdom, December 1-3, 2021, 2021)

Synthesizing Fundus Photographies for Training Segmentation Networks - Jannes Magnusson; Ahmed J. Afifi; Shengjia Zhang; Andreas Ley; Olaf Hellwich (Proceedings of the 2nd International Conference on Deep Learning Theory and Applications, DeLTA 2021, Online Streaming, July 7-9, 2021, 2021)

Electrode Dropout Compensation in Visual Prostheses: An Optimal Object Placement Approach - Reham Elnabawy; Slim Abdennadher; Olaf Hellwich; Seif Eldawlatly (43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society, EMBC 2021, Mexico, November 1-5, 2021, 2021)

Deep Learning Based Joint Reconstruction and Extraction of Urban Structures from Tomographic SAR Data - Olivier D'Hondt; Olaf Hellwich (IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021, Brussels, Belgium, July 11-16, 2021, 2021)

A modular framework for object-based saccadic decisions in dynamic scenes - Nicolas Roth; Pia Bideau; Olaf Hellwich; Martin Rolfs; Klaus Obermayer (CoRR, 2021)

Reference-Free Despeckling of Synthetic-Aperture Radar Images Using a Deep Convolutional Network - Tim Davis; V. Jain; Andreas Ley; Olivier D'Hondt; Sébastien Valade; Olaf Hellwich (IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020, Waikoloa, HI, USA, September 26 - October 2, 2020, 2020)

A Power Efficient Multi-Bit Accelerator for Memory Prohibitive Deep Neural Networks - Suhas Shivapakash; Hardik Jain; Olaf Hellwich; Friedel Gerfers (IEEE International Symposium on Circuits and Systems, ISCAS 2020, Sevilla, Spain, October 10-21, 2020, 2020)

Mini V-Net: Depth Estimation from Single Indoor-Outdoor Images using Strided-CNN - Ahmed J. Afifi; Olaf Hellwich; Toufique Ahmed Soomro (Proceedings of the 15th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, VISIGRAPP 2020, Volume 5: VISAPP, Valletta, Malta, February 27-29, 2020, 2020)

Patient Motion Compensation for Photogrammetric Registration - Hardik Jain; Olaf Hellwich; Andreas Rose; Nicholas Norman; Dirk Mucha; Timo Krüger (Proceedings of the 15th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, VISIGRAPP 2020, Volume 4: VISAPP, Valletta, Malta, February 27-29, 2020, 2020)

Learning Disentangled Expression Representations from Facial Images - Marah Halawa; Manuel Wöllhaf; Eduardo Vellasques; Urko Sánchez Sanz; Olaf Hellwich (CoRR, 2020)

Deep Learning Models for Retinal Blood Vessels Segmentation: A Review - Toufique Ahmed Soomro; Ahmed J. Afifi; Lihong Zheng; Shafiullah Soomro; Junbin Gao; Olaf Hellwich; Manoranjan Paul (IEEE Access, 2019)

Strided fully convolutional neural network for boosting the sensitivity of retinal blood vessels segmentation - Toufique Ahmed Soomro; Ahmed J. Afifi; Junbin Gao; Olaf Hellwich; Lihong Zheng; Manoranjan Paul (Expert Syst. Appl., 2019)

Towards Global Volcano Monitoring Using Multisensor Sentinel Missions and Artificial Intelligence: The MOUNTS Monitoring System - Sébastien Valade; Andreas Ley; Francesco Massimetti; Olivier D'Hondt; Marco Laiolo; Diego Coppola; David Loibl; Olaf Hellwich; Thomas R. Walter (Remote. Sens., 2019)

3D Reconstruction Under Weak Illumination Using Visibility-Enhanced LDR Imagery - Nader H. Aldeeb; Olaf Hellwich (Advances in Computer Vision - Proceedings of the 2019 Computer Vision Conference, CVC 2019, Las Vegas, Nevada, USA, 25-26 April 2019, Volume 1, 2019)

A Digital Image Processing Pipeline for Modelling of Realistic Noise in Synthetic Images - Oleksandra Bielova; Ronny Hänsch; Andreas Ley; Olaf Hellwich (IEEE Conference on Computer Vision and Pattern Recognition Workshops, CVPR Workshops 2019, Long Beach, CA, USA, June 16-20, 2019, 2019)

Learning to Reconstruct Symmetric Shapes using Planar Parameterization of 3D Surface - Hardik Jain; Manuel Wöllhaf; Olaf Hellwich (2019 IEEE/CVF International Conference on Computer Vision Workshops, ICCV Workshops 2019, Seoul, Korea (South), October 27-28, 2019, 2019)

The Truth About Ground Truth: Label Noise in Human-Generated Reference Data - Ronny Hänsch; Olaf Hellwich (2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019, Yokohama, Japan, July 28 - August 2, 2019, 2019)

Online Random Forests For Large-Scale Land-Use Classification From Polarimetric Sar Images - Ronny Hänsch; Olaf Hellwich (2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019, Yokohama, Japan, July 28 - August 2, 2019, 2019)

Online Random Forests for Urban Area Classification from Polarimetric SAR Images - Ronny Hänsch; Olaf Hellwich (Joint Urban Remote Sensing Event, JURSE 2019, Vannes, France, May 22-24, 2019, 2019)

Template-Based Surface Estimation Using Statistical Shape Model - Jens Krenzin; Olaf Hellwich (15th International Conference on Signal-Image Technology & Internet-Based Systems, SITIS 2019, Sorrento, Italy, November 26-29, 2019, 2019)

Colorful Trees: Visualizing Random Forests for Analysis and Interpretation - Ronny Hänsch; Philipp Wiesner; Sophie Wendler; Olaf Hellwich (IEEE Winter Conference on Applications of Computer Vision, WACV 2019, Waikoloa Village, HI, USA, January 7-11, 2019, 2019)

Classification of PolSAR Images by Stacked Random Forests - Ronny Hänsch; Olaf Hellwich (ISPRS Int. J. Geo Inf., 2018)

Exploiting SAR Tomography for Supervised Land-Cover Classification - Olivier D'Hondt; Ronny Hänsch; Nicolas Wagener; Olaf Hellwich (Remote. Sens., 2018)

Regularization and Completion of TomoSAR Point Clouds in a Projected Height Map Domain - Andreas Ley; Olivier D'Hondt; Olaf Hellwich (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2018)

Nonlocal Filtering Applied to 3-D Reconstruction of Tomographic SAR Data - Olivier D'Hondt; Carlos López-Martínez; Stéphane Guillaso; Olaf Hellwich (IEEE Trans. Geosci. Remote. Sens., 2018)

Strided U-Net Model: Retinal Vessels Segmentation using Dice Loss - Toufique Ahmed Soomro; Olaf Hellwich; Ahmed J. Afifi; Manoranjan Paul; Junbin Gao; Lihong Zheng (2018 Digital Image Computing: Techniques and Applications, DICTA 2018, Canberra, Australia, December 10-13, 2018, 2018)

Random Forests Based Image Colorization - Helge Mohn; Mark Gaebelein; Ronny Hänsch; Olaf Hellwich (Computer Vision, Imaging and Computer Graphics Theory and Applications - 13th International Joint Conference, VISIGRAPP 2018, Funchal, Madeira, Portugal, January 27-29, 2018, Revised Selected Papers, 2018)

Classification of Icon Type and Cooldown State in Video Game Replays - Jeremias Eichelbaum; Ronny Hänsch; Olaf Hellwich (Image Analysis and Recognition - 15th International Conference, ICIAR 2018, Póvoa de Varzim, Portugal, June 27-29, 2018, Proceedings, 2018)

Feature Design for Classification from Tomosar Data - Olivier D'Hondt; Ronny Hänsch; Olaf Hellwich (2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018, Valencia, Spain, July 22-27, 2018, 2018)

A Comparative Evaluation of Polarimetric Distance Measures within the Random Forest Framework for the Classification of Polsar Images - Ronny Hänsch; Olaf Hellwich (2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018, Valencia, Spain, July 22-27, 2018, 2018)

Simultaneous Object Classification and Viewpoint Estimation using Deep Multi-task Convolutional Neural Network - Ahmed J. Afifi; Olaf Hellwich; Toufique Ahmed Soomro (Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - Volume 5: VISAPP, Funchal, Madeira, Portugal, January 27-29, 2018, 2018)

Leveraging the Spatial Label Structure for Semantic Image Labeling using Random Forests - Manuel Wöllhaf; Ronny Hänsch; Olaf Hellwich (Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - Volume 5: VISAPP, Funchal, Madeira, Portugal, January 27-29, 2018, 2018)

Towards Image Colorization with Random Forests - Helge Mohn; Mark Gaebelein; Ronny Hänsch; Olaf Hellwich (Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - Volume 4: VISAPP, Funchal, Madeira, Portugal, January 27-29, 2018, 2018)

Reconstructing Textureless Objects - Image Enhancement for 3D Reconstruction of Weakly-Textured Surfaces - Nader H. Aldeeb; Olaf Hellwich (Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - Volume 5: VISAPP, Funchal, Madeira, Portugal, January 27-29, 2018, 2018)

Deep convolutional neural networks for automatic classification of gastric carcinoma using whole slide images in digital histopathology - Harshita Sharma; Norman Zerbe; Iris Klempert; Olaf Hellwich; Peter Hufnagl (Comput. Medical Imaging Graph., 2017)

A Comparative Study of Cell Nuclei Attributed Relational Graphs for Knowledge Description and Categorization in Histopathological Gastric Cancer Whole Slide Images - Harshita Sharma; Norman Zerbe; Christine Boger; Stephan Wienert; Olaf Hellwich; Peter Hufnagl (30th IEEE International Symposium on Computer-Based Medical Systems, CBMS 2017, Thessaloniki, Greece, June 22-24, 2017, 2017)

Boosting Sensitivity of a Retinal Vessel Segmentation Algorithm with Convolutional Neural Network - Toufique Ahmed Soomro; Ahmed J. Afifi; Junbin Gao; Olaf Hellwich; Mohammad A. U. Khan; Manoranjan Paul; Lihong Zheng (2017 International Conference on Digital Image Computing: Techniques and Applications, DICTA 2017, Sydney, Australia, November 29 - December 1, 2017, 2017)

Impact of non-local filtering on 3D reconstruction from tomographic SAR data - Olivier D'Hondt; Carlos López-Martínez; Stéphane Guillaso; Olaf Hellwich (2017 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017, Fort Worth, TX, USA, July 23-28, 2017, 2017)

Correct and still wrong: The relationship between sampling strategies and the estimation of the generalization error - Ronny Hänsch; Andreas Ley; Olaf Hellwich (2017 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017, Fort Worth, TX, USA, July 23-28, 2017, 2017)

Regularization and completion of tomosar point clouds in a projected height map domain - Andreas Ley; Olivier D'Hondt; Olaf Hellwich (2017 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017, Fort Worth, TX, USA, July 23-28, 2017, 2017)

Specularity, Shadow, and Occlusion Removal for Planar Objects in Stereo Case - Irina Nurutdinova; Ronny Hänsch; Vincent Mühler; Stavroula Bourou; Alexandra I. Papadaki; Olaf Hellwich (Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2017) - Volume 4: VISAPP, Porto, Portugal, February 27 - March 1, 2017, 2017)

Near Real-time Object Detection in RGBD Data - Ronny Hänsch; Stefan Kaiser; Olaf Hellwich (Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2017) - Volume 5: VISAPP, Porto, Portugal, February 27 - March 1, 2017, 2017)

Detection and Classification of Holes in Point Clouds - Nader H. Aldeeb; Olaf Hellwich (Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2017) - Volume 6: VISAPP, Porto, Portugal, February 27 - March 1, 2017, 2017)

Photogrammetric Methods - Olaf Hellwich (Encyclopedia of GIS, 2017)

Automated image analysis for trajectory determination of single drop collisions - Johannes Kamp; Ronny Hänsch; Gregor Kendzierski; Matthias Kraume; Olaf Hellwich (Comput. Chem. Eng., 2016)

Depth Map Based Facade Abstraction from Noisy Multi-View Stereo Point Clouds - Andreas Ley; Olaf Hellwich (Pattern Recognition - 38th German Conference, GCPR 2016, Hannover, Germany, September 12-15, 2016, Proceedings, 2016)

Reduction of Point Cloud Artifacts Using Shape Priors Estimated with the Gaussian Process Latent Variable Model - Jens Krenzin; Olaf Hellwich (Pattern Recognition - 38th German Conference, GCPR 2016, Hannover, Germany, September 12-15, 2016, Proceedings, 2016)

Object Depth Estimation from a Single Image Using Fully Convolutional Neural Network - Ahmed J. Afifi; Olaf Hellwich (2016 International Conference on Digital Image Computing: Techniques and Applications, DICTA 2016, Gold Coast, Australia, November 30 - December 2, 2016, 2016)

SyB3R: A Realistic Synthetic Benchmark for 3D Reconstruction from Images - Andreas Ley; Ronny Hänsch; Olaf Hellwich (Computer Vision - ECCV 2016 - 14th European Conference, Amsterdam, The Netherlands, October 11-14, 2016, Proceedings, Part VII, 2016)

Improving 3D face geometry by adapting reconstruction from stereo image pair to generic Morphable Model - Hardik Jain; Olaf Hellwich; R. S. Anand (19th International Conference on Information Fusion, FUSION 2016, Heidelberg, Germany, July 5-8, 2016, 2016)

Boundless Reconstruction Using Regularized 3D Fusion - M. A. A. Rajput; Eugen Funk; Anko Börner; Olaf Hellwich (E-Business and Telecommunications - 13th International Joint Conference, ICETE 2016, Lisbon, Portugal, July 26-28, 2016, Revised Selected Papers, 2016)

Machine-learning based detection of corresponding interest points in optical and SAR images - Ronny Hänsch; Olaf Hellwich; Xiaohong Tu (2016 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016, Beijing, China, July 10-15, 2016, 2016)

When to fuse what? random forest based fusion of low-, mid-, and high-level information for land cover classification from optical and SAR images - Ronny Hänsch; Olaf Hellwich (2016 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016, Beijing, China, July 10-15, 2016, 2016)

Cell nuclei attributed relational graphs for efficient representation and classification of gastric cancer in digital histopathology - Harshita Sharma; Norman Zerbe; Daniel Heim; Stephan Wienert; Sebastian Lohmann; Olaf Hellwich; Peter Hufnagl (Medical Imaging 2016: Digital Pathology, San Diego, California, United States, 27 February - 3 March 2016, 2016)

Recursive Total Variation Filtering Based 3D Fusion - M. A. A. Rajput; Eugen Funk; Anko Börner; Olaf Hellwich (Proceedings of the 13th International Joint Conference on e-Business and Telecommunications (ICETE 2016) - Volume 5: SIGMAP, Lisbon, Portugal, July 26-28, 2016, 2016)

Employing smartphone as on-board navigator in unmanned aerial vehicles: implementation and experiments - Boxin Zhao; Olaf Hellwich; Tianjiang Hu; Dianle Zhou; Yifeng Niu; Lincheng Shen (Ind. Robot, 2015)

Appearance-based necrosis detection using textural features and SVM with discriminative thresholding in histopathological whole slide images - Harshita Sharma; Norman Zerbe; Iris Klempert; Sebastian Lohmann; Björn Lindequist; Olaf Hellwich; Peter Hufnagl (15th IEEE International Conference on Bioinformatics and Bioengineering, BIBE 2015, Belgrade, Serbia, November 2-4, 2015, 2015)

Performance Assessment and Interpretation of Random Forests by Three-dimensional Visualizations - Ronny Hänsch; Olaf Hellwich (IVAPP 2015 - Proceedings of the 6th International Conference on Information Visualization Theory and Applications, Berlin, Germany, 11-14 March, 2015, 2015)

Evaluation of tree creation methods within random forests for classification of PolSAR images - Ronny Hänsch; Olaf Hellwich (2015 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015, Milan, Italy, July 26-31, 2015, 2015)

SAR tomography with reduced number of tracks: Urban object reconstruction - Stéphane Guillaso; Olivier D'Hondt; Olaf Hellwich (2015 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015, Milan, Italy, July 26-31, 2015, 2015)

A Multi-resolution Approach for Combining Visual Information using Nuclei Segmentation and Classification in Histopathological Images - Harshita Sharma; Norman Zerbe; Daniel Heim; Stephan Wienert; Hans-Michael Behrens; Olaf Hellwich; Peter Hufnagl (VISAPP 2015 - Proceedings of the 10th International Conference on Computer Vision Theory and Applications, Volume 3, Berlin, Germany, 11-14 March, 2015, 2015)

Semantic Segmentation and Model Fitting for Triangulated Surfaces using Random Jumps and Graph Cuts - Tilman Wekel; Olaf Hellwich (VISAPP 2015 - Proceedings of the 10th International Conference on Computer Vision Theory and Applications, Volume 3, Berlin, Germany, 11-14 March, 2015, 2015)

Prior Knowledge About Camera Motion for Outlier Removal in Feature Matching - Elisavet Konstantina Stathopoulou; Ronny Hänsch; Olaf Hellwich (VISAPP 2015 - Proceedings of the 10th International Conference on Computer Vision Theory and Applications, Volume 2, Berlin, Germany, 11-14 March, 2015, 2015)

Feature-independent classification of hyperspectral images by projection-based random forests - Ronny Hänsch; Olaf Hellwich (7th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2015, Tokyo, Japan, June 2-5, 2015, 2015)

A cascaded ensemble classifier for object segmentation in high resolution polarimetric SAR data - Marc Jäger; Andreas Reigber; Olaf Hellwich (2014 IEEE Geoscience and Remote Sensing Symposium, IGARSS 2014, Quebec City, QC, Canada, July 13-18, 2014, 2014)

Graph-cut segmentation of polarimetric SAR images - Ronny Hänsch; Olaf Hellwich; Xi Wang (2014 IEEE Geoscience and Remote Sensing Symposium, IGARSS 2014, Quebec City, QC, Canada, July 13-18, 2014, 2014)

Urban scene reconstruction from a reduced number of tomographic SAR data - Stéphane Guillaso; Olivier D'Hondt; Olaf Hellwich (2014 IEEE Geoscience and Remote Sensing Symposium, IGARSS 2014, Quebec City, QC, Canada, July 13-18, 2014, 2014)

Risk based parameter selection for polarimetric SAR speckle reduction - Olivier D'Hondt; Stéphane Guillaso; Olaf Hellwich (2014 IEEE Geoscience and Remote Sensing Symposium, IGARSS 2014, Quebec City, QC, Canada, July 13-18, 2014, 2014)

Comparison of Different Color Spaces for Image Segmentation using Graph-cut - Xi Wang; Ronny Hänsch; Lizhuang Ma; Olaf Hellwich (VISAPP 2014 - Proceedings of the 9th International Conference on Computer Vision Theory and Applications, Volume 1, Lisbon, Portugal, 5-8 January, 2014, 2014)

Iterative Bilateral Filtering of Polarimetric SAR Data - Olivier D'Hondt; Stéphane Guillaso; Olaf Hellwich (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2013)

Integrated Matching and Geocoding of SAR and Optical Satellite Images - Olaf Hellwich; Cornelius Wefelscheid; Jakub Lukaszewicz; Ronny Hänsch; Muhammad Adnan Siddique; Adam Stanski (Pattern Recognition and Image Analysis - 6th Iberian Conference, IbPRIA 2013, Funchal, Madeira, Portugal, June 5-7, 2013. Proceedings, 2013)

Compensation for Multipath in ToF Camera Measurements Supported by Photometric Calibration and Environment Integration - Stefan Fuchs; Michael Suppa; Olaf Hellwich (Computer Vision Systems - 9th International Conference, ICVS 2013, St. Petersburg, Russia, July 16-18, 2013. Proceedings, 2013)

OpenOF - Framework for Sparse Non-linear Least Squares Optimization on a GPU - Cornelius Wefelscheid; Olaf Hellwich (VISAPP 2013 - Proceedings of the International Conference on Computer Vision Theory and Applications, Volume 2, Barcelona, Spain, 21-24 February, 2013, 2013)

Iterative Bilateral Filtering of Polarimetric SAR Data - Olivier D'Hondt; Stéphane Guillaso; Olaf Hellwich (CoRR, 2013)

A New Coherent Similarity Measure for Temporal Multichannel Scene Characterization - Esra Erten; Andreas Reigber; Laurent Ferro-Famil; Olaf Hellwich (IEEE Trans. Geosci. Remote. Sens., 2012)

Voronoi-Based Extraction of a Feature Skeleton from Noisy Triangulated Surfaces - Tilman Wekel; Olaf Hellwich (Computer Vision - ACCV 2012, 11th Asian Conference on Computer Vision, Daejeon, Korea, November 5-9, 2012, Revised Selected Papers, Part II, 2012)

Extraction of points of interest from SAR tomograms - Stéphane Guillaso; Olivier D'Hondt; Olaf Hellwich (2012 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012, Munich, Germany, July 22-27, 2012, 2012)

Automatic registration of SAR and optical images based on mutual information assisted Monte Carlo - Muhammad Adnan Siddique; M. Saquib Sarfraz; David Bornemann; Olaf Hellwich (2012 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012, Munich, Germany, July 22-27, 2012, 2012)

Automatic extraction of geometric structures for 3D reconstruction from tomographic SAR data - Olivier D'Hondt; Stéphane Guillaso; Olaf Hellwich (2012 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012, Munich, Germany, July 22-27, 2012, 2012)

Bilateral filtering of PolSAR data based on Riemannian metrics - Olivier D'Hondt; Stéphane Guillaso; Olaf Hellwich (2012 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012, Munich, Germany, July 22-27, 2012, 2012)

Impact of hierarchical structures in image categorization systems - Merza Klaghstan; Ronny Hänsch; David Coquil; Olaf Hellwich (3rd International Conference on Image Processing Theory Tools and Applications, IPTA 2012, 15-18 October 2012, Istanbul, Turkey, 2012)

A Robust Approach to Multi-feature Based Mesh Segmentation Using Adaptive Density Estimation - Tilman Wekel; Olaf Hellwich (Computer Analysis of Images and Patterns - 14th International Conference, CAIP 2011, Seville, Spain, August 29-31, 2011, Proceedings, Part I, 2011)

Point based registration of high-resolution histological slices - Peter Leskovski; Olaf Hellwich (Medical Image Understanding and Analysis - MIUA 2011. 15th Annual Conference, London, UK, July 14-15, 2011. Proceedings, 2011)

Monocular Rectangle Reconstruction - Based on Direct Linear Transformation - Cornelius Wefelscheid; Tilman Wekel; Olaf Hellwich (VISAPP 2011 - Proceedings of the Sixth International Conference on Computer Vision Theory and Applications, Vilamoura, Algarve, Portugal, 5-7 March, 2011, 2011)

Probabilistic learning for fully automatic face recognition across pose - M. Saquib Sarfraz; Olaf Hellwich (Image Vis. Comput., 2010)

Selection of an Optimal Polyhedral Surface Model Using the Minimum Description Length Principle - Tilman Wekel; Olaf Hellwich (Pattern Recognition - 32nd DAGM Symposium, Darmstadt, Germany, September 22-24, 2010. Proceedings, 2010)

Random Forests for building detection in polarimetric SAR data - Ronny Hänsch; Olaf Hellwich (IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2010, July 25-30, 2010, Honolulu, Hawaii, USA, Proceedings, 2010)

Aspects of multivariate statistical theorywith the application to change detection - Esra Erten; Andreas Reigber; Olaf Hellwich (IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2010, July 25-30, 2010, Honolulu, Hawaii, USA, Proceedings, 2010)

A trifocal sensor system for 3D reconstruction of architectural models - Volker Rodehorst; Matthias Heinrichs; Olaf Hellwich (Ann. GIS, 2009)

Glacier Velocity Monitoring by Maximum Likelihood Texture Tracking - Esra Erten; Andreas Reigber; Olaf Hellwich; Pau Prats (IEEE Trans. Geosci. Remote. Sens., 2009)

Urban Areas Characterization from Polarimetric SAR Images using Hidden Markov Model - Wenju He; Marc Jäger; Olaf Hellwich (IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2009, July 12-17, 2009, University of Cape Town, Cape Town, South Africa, Proceedings, 2009)

Bayesian Building Extraction from High Resolution Polarimetric SAR Data - Wenju He; Olaf Hellwich (IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2009, July 12-17, 2009, University of Cape Town, Cape Town, South Africa, Proceedings, 2009)

An Accuracy Assessment of ML Texture Tracking Algorithm over Multitemporal SAR Images - Esra Erten; Andreas Reigber; Olaf Hellwich; Pau Prats (IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2009, July 12-17, 2009, University of Cape Town, Cape Town, South Africa, Proceedings, 2009)

Semi-supervised Learning for Classification of Polarimetric SAR-Data - Ronny Hänsch; Olaf Hellwich (IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2009, July 12-17, 2009, University of Cape Town, Cape Town, South Africa, Proceedings, 2009)

Statistical appearance models for automatic pose invariant face recognition - M. Saquib Sarfraz; Olaf Hellwich (8th IEEE International Conference on Automatic Face and Gesture Recognition (FG 2008), Amsterdam, The Netherlands, 17-19 September 2008, 2008)

Comparison of Three Unsupervised Segmentation Algorithms for SAR Data in Urban Areas - Wenju He; Marc Jäger; Olaf Hellwich (IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2008, July 8-11, 2008, Boston, Massachusetts, USA, Proceedings, 2008)

On Head Pose Estimation in Face Recognition - M. Saquib Sarfraz; Olaf Hellwich (Computer Vision and Computer Graphics. Theory and Applications - International Conference, VISIGRAPP 2008, Funchal-Madeira, Portugal, January 22-25, 2008. Revised Selected Papers, 2008)

Head Pose Estimation in Face Recognition Across Pose Scenarios - M. Saquib Sarfraz; Olaf Hellwich (VISAPP 2008: Proceedings of the Third International Conference on Computer Vision Theory and Applications, Funchal, Madeira, Portugal, January 22-25, 2008 - Volume 1, 2008)

Photogrammetric Methods - Olaf Hellwich (Encyclopedia of GIS, 2008)

A Benchmarking Dataset for Performance Evaluation of Automatic Surface Reconstruction Algorithms - Anke Bellmann; Olaf Hellwich; Volker Rodehorst; Ulas Yilmaz (2007 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR 2007), 18-23 June 2007, Minneapolis, Minnesota, USA, 2007)

Image Statistics and Local Spatial Conditions for Nonstationary Blurred Image Reconstruction - Hongwei Zheng; Olaf Hellwich (Pattern Recognition, 29th DAGM Symposium, Heidelberg, Germany, September 12-14, 2007, Proceedings, 2007)

Discrete Regularization for Perceptual Image Segmentation via Semi-Supervised Learning and Optimal Control - Hongwei Zheng; Olaf Hellwich (Proceedings of the 2007 IEEE International Conference on Multimedia and Expo, ICME 2007, July 2-5, 2007, Beijing, China, 2007)

Unsupervised classification of polarimetric SAR data using graph cut optimization - Marc Jäger; Andreas Reigber; Olaf Hellwich (IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2007, July 23-28, 2007, Barcelona, Spain, Proceedings, 2007)

Robust measurement of glacier surface motion from multiscale speckle tracking using local constraints - Esra Erten; Andreas Reigber; Marc Jäger; Olaf Hellwich (IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2007, July 23-28, 2007, Barcelona, Spain, Proceedings, 2007)

Adaptive data-driven regularization for variational image restoration in the BV space - Hongwei Zheng; Olaf Hellwich (VISAPP 2007: Proceedings of the Second International Conference on Computer Vision Theory and Applications, Barcelona, Spain, March 8-11, 2007 - Volume 1, 2007)

Double Regularized Bayesian Estimation for Blur Identification in Video Sequences - Hongwei Zheng; Olaf Hellwich (Computer Vision - ACCV 2006, 7th Asian Conference on Computer Vision, Hyderabad, India, January 13-16, 2006, Proceedings, Part II, 2006)

Genetic Algorithm SAmple Consensus (GASAC) - A Parallel Strategy for Robust Parameter Estimation - Volker Rodehorst; Olaf Hellwich (IEEE Conference on Computer Vision and Pattern Recognition, CVPR Workshops 2006, New York, NY, USA, 17-22 June, 2006, 2006)

Introducing Dynamic Prior Knowledge to Partially-Blurred Image Restoration - Hongwei Zheng; Olaf Hellwich (Pattern Recognition, 28th DAGM Symposium, Berlin, Germany, September 12-14, 2006, Proceedings, 2006)

An Edge-Driven Total Variation Approach to Image Deblurring and Denoising - Hongwei Zheng; Olaf Hellwich (First International Conference on Innovative Computing, Information and Control (ICICIC 2006), 30 August - 1 September 2006, Beijing, China, 2006)

Extended Mumford-Shah Regularization in Bayesian Estimation for Blind Image Deconvolution and Segmentation - Hongwei Zheng; Olaf Hellwich (Combinatorial Image Analysis, 11th International Workshop, IWCIA 2006, Berlin, Germany, June 19-21, 2006, Proceedings, 2006)

Joint prior models of mumford-shah regularization for blur identification and segmentation in video sequences - Hongwei Zheng; Olaf Hellwich (VISAPP 2006: Proceedings of the First International Conference on Computer Vision Theory and Applications, Volume 1, Setúbal, Portugal, February 25-28, 2006, 2006)

Fusion of remotely sensed data over urban areas - Paolo Gamba; Olaf Hellwich; Pierfrancesco Lombardo (Inf. Fusion, 2005)

Spiders as Robust Point Descriptors - Adam Stanski; Olaf Hellwich (Pattern Recognition, 27th DAGM Symposium, Vienna, Austria, August 31 - September 2, 2005, Proceedings, 2005)

Saliency and salient region detection in SAR polarimetry - Marc Jäger; Olaf Hellwich (IEEE International Geoscience & Remote Sensing Symposium, IGARSS 2005, July 25-29, 2005, Seoul, Korea, Proceedings, 2005)

3D Head Pose Estimation with Symmetry Based Illumination Model in Low Resolution Video - Martin Gruendig; Olaf Hellwich (Pattern Recognition, 26th DAGM Symposium, August 30 - September 1, 2004, Tübingen, Germany, Proceedings, 2004)

Sensor and data fusion contest: test imagery to compare and combine airborne SAR and optical sensors for mapping - Olaf Hellwich; Andreas Reigber; Hartmut Lehmann (IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2002, Toronto, Ontario, Canada, 24-28 June 2002, 2002)

Determination of the rheology of Arctic glaciers using multi-temporal ERS1/2 SAR interferograms combined in a least squares adjustment - Franz J. Meyer; Olaf Hellwich (IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2002, Toronto, Ontario, Canada, 24-28 June 2002, 2002)

Linienextraktion aus SAR-Daten mit einem Markoff-Zufallsfeld-Modell - Olaf Hellwich (Technical University Munich, 1997)

Extracting line features from synthetic aperture radar (SAR) scenes using a Markov random field model - Olaf Hellwich; Helmut Mayer (Proceedings 1996 International Conference on Image Processing, Lausanne, Switzerland, September 16-19, 1996, 1996)