Prof. Dr. rer. nat. habil. Timo Ropinski

Publications

Pre-Print

• Evaluating Text-to-Image Synthesis: Survey and Taxonomy of Image Quality Metrics

  Sebastian Hartwig, Dominik Engel, Leon Sick, Hannah Kniesel, Tristan Payer, Poonam Poonam, Michael Glöckler, Alex Bäuerle, Timo Ropinski

  https://arxiv.org/abs/2403.11821 2024
• ClusterNet: A Perception-Based Clustering Model for Scattered Data

  Sebastian Hartwig, Christian van Onzenoodt, Dominik Engel, Pedro Hermosilla, Timo Ropinski

  https://arxiv.org/abs/2304.14185 2024
• LLMMaps - A Visual Metaphor for Stratified Evaluation of Large Language Models

  Patrik Puchert, Poonam Poonam, Christian van Onzenoodt, Timo Ropinski

  2023
• AutoTherm: A Dataset and Ablation Study for Thermal Comfort Prediction in Vehicles

  Mark Colley, Sebastian Hartwig, Albin Zeqiri, Timo Ropinski, Enrico Rukzio

  https://arxiv.org/abs/2211.08257 2023

Peer-Reviewed

• Less is More: Selective reduction of CT data for self-supervised pre-training of deep learning models with contrastive learning improves downstream classification performance

  Daniel Wolf, Tristan Payer, Cathrina Silvia Lisson, Christoph Gerhard Lisson, Meinrad Beer, Michael Götz*, Timo Ropinski*

  Computers in Biology and Medicine. 2024
• A Wall I Enjoy: Motivating Gentle Full-Body Movements Through Touchwall Interaction Compared to Standing and Sitting Smartphone Usage

  Jana Funke, Michael Wolf, Christian van Onzenoodt, Katja Rogers, Timo Ropinski, Enrico Rukzio

  ACM International Conference on Interactive Media Experiences 2024
• Open3DSG: Open-Vocabulary 3D Scene Graphs from Point Clouds with Queryable Objects and Open-Set Relationships

  Sebastian Koch, Narunas Vaskevicius, Mirco Colosi, Pedro Hermosilla, Timo Ropinski

  IEEE Conference on Computer Vision and Pattern Recognition 2024
• Towards Differentiable Electron Microscopy Simulation: Methods and Applications

  Ngan Nguyen, Feng Liang, Dominik Engel, Ciril Bohak, Peter Wonka, Timo Ropinski, Ivan Viola

  IEEE Pacific Visualization Symposium 2024
• Validation of the ViGaTu Immersive Virtual Reality Endoscopy Training System for Physicians and Nurses

  Dorothea Henninger, Monika Engelke, Julian Kreiser, Valentin Riemer, Eva Vierzba, Stavros Dimitriadis, Alexander Meining, Tina Seufert, Timo Ropinski, Alexander Hann

  Journal of Gastrointestinal and Liver Diseases 2024
• mint: Integrating Scientific Visualizations Into Virtual Reality

  Sergej Geringer, Florian Geiselhart, Alex Bäuerle, Dominik Dec, Olivia Odenthal, Guido Reina, Timo Ropinski, Daniel Weiskopf

  Japan Visualization Symposium 2024
• Weakly Supervised Virus Capsid Detection with Image-Level Annotations in Electron Microscopy Images

  Hannah Kniesel, Leon Sick, Tristan Payer, Tim Bergner, Kavitha Shaga Devan, Clarissa Read, Paul Walther, Timo Ropinski, Pedro Hermosilla

  International Conference on Learning Representations 2024
• Lang3DSG: Language-based contrastive pre-training for 3D scene graph prediction

  Sebastian Koch, Pedro Hermosilla, Narunas Vaskevicius, Mirco Colosi, Timo Ropinski

  International Conference on 3D Vision 2024
• SGRec3D: Self-Supervised Pre-training for 3D Scene Graph prediction

  Sebastian Koch, Pedro Hermosilla, Narunas Vaskevicius, Mirco Colosi, Timo Ropinski

  IEEE/CVF Winter Conference on Applications of Computer Vision 2024
• Unsupervised Semantic Segmentation Through Depth-Informed Feature Distillation and Sampling

  Leon Sick, Dominik Engel, Pedro Hermosilla, Timo Ropinski

  IEEE Conference on Computer Vision and Pattern Recognition 2024
• Leveraging Self-Supervised Vision Transformers for Segmentation-based Transfer Function Design

  Dominik Engel, Leon Sick, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics 2024
• Self-Supervised Pre-Training with Contrastive and Masked Autoencoder Methods for Dealing with Small Datasets in Deep Learning for Medical Imaging

  Daniel Wolf, Tristan Payer, Cathrina Silvia Lisson, Christoph Gerhard Lisson, Meinrad Beer, Michael Götz*, Timo Ropinski*

  Nature Scientific Reports 2023
• Medical volume segmentation by overfitting sparsely annotated data

  Tristan Payer, Faraz Nizamani, Meinrad Beer, Michael Götz, Timo Ropinski

  Journal of Medical Imaging 2023
• Levels of explicability for medical artificial intelligence: What do we normatively need and what can we technically reach?

  Frank Ursin, Felix Lindner, Timo Ropinski, Sabine Salloch, Cristian Timmermann

  Ethik in der Medizin 2023
• Künstliche Intelligenz in der Radiologie – jenseits der Black-Box

  Luisa Gallee, Hannah Kniesel, Michael Götz, Timo Ropinski

  RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren 2023
• Semantic Hierarchical Exploration of Large Image Datasets

  Alex Bäuerle, Christian van Onzenoodt, Daniel Jönsson, Timo Ropinski

  EuroVis 2023
• Levels of explicability for medical artificial intelligence: What do we need and what can we get?

  Frank Ursin, Felix Lindner, Timo Ropinski, Sabine Salloch, Cristian Timmermann

  2023
• Weakly-Supervised Optical Flow Estimation for Time-of-Flight

  Michael Schelling, Pedro Hermosilla, Timo Ropinski

  IEEE/CVF Winter Conference on Applications of Computer Vision 2023
• Monocular Depth Decomposition of Semi-Transparent Volume Renderings

  Dominik Engel, Sebastian Hartwig, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics 2023
• Variance-Aware Weight Initialization for Point Convolutional Neural Networks

  Pedro Hermosilla, Michael Schelling, Tobias Ritschel, Timo Ropinski

  European Conference on Computer Vision 2022
• Out of the Plane: Flower vs. Star Glyphs to Support High-Dimensional Exploration in Two-Dimensional Embeddings

  Christian van Onzenoodt, Pere-Pau Vázquez, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics 2022
• Digitale Phänotypisierung in der Psychologie – ein Quantensprung in der psychologischen Forschung?

  Harald Baumeister, Patricia Garatva, Rüdiger Pryss, Timo Ropinski, Christian Montag

  2022
• Conflicting Aims and Values in the Application of Smart Sensors in Geriatric Rehabilitation: An Ethical Analysis

  Christopher Predel, Cristian Timmermann, Frank Ursin, Marcin Orzechowski, Timo Ropinski, Florian Steger

  JMIR mHealth and uHealth 2022
• Learning Human Viewpoint Preferences from Sparsely Annotated Models

  Sebastian Hartwig, Michael Schelling, Christian van Onzenoodt, Pere-Pau Vázquez, Pedro Hermosilla, Timo Ropinski

  Computer Graphics Forum 2022
• Where did my Lines go? Visualizing Missing Data in Parallel Coordinates

  Alex Bäuerle*, Christian van Onzenoodt*, Simon der Kinderen, Jimmy Johansson Westberg, Daniel Jönsson, Timo Ropinski

  Computer Graphics Forum (Proc. of EuroVis) 2022
• Gaussian Mixture Convolution Networks

  Adam Celarek, Pedro Hermosilla, Bernhard Kerbl, Timo Ropinski, Michael Wimmer

  International Conference on Learning Representations 2022
• Clean Implicit 3D Structure from Noisy 2D STEM Images

  Hannah Kniesel, Timo Ropinski, Tim Bergner, Kavitha Shaga Devan, Clarissa Read, Paul Walther, Tobias Ritschel, Pedro Hermosilla

  IEEE Conference on Computer Vision and Pattern Recognition 2022
• RADU: Ray-Aligned Depth Update Convolutions for ToF Data Denoising

  Michael Schelling, Pedro Hermosilla, Timo Ropinski

  IEEE Conference on Computer Vision and Pattern Recognition 2022
• Finding Nano-Ötzi: Semi-Supervised Volume Visualization for Cryo-Electron Tomography

  Ngan Nguyen, Ciril Bohak, Dominik Engel, Peter Mindek, Ondrej Strnad, Peter Wonka, Sai Li, Timo Ropinski, Ivan Viola

  IEEE Transactions on Visualization and Computer Graphics 2022
• Data-Driven Deep Density Estimation

  Patrik Puchert, Pedro Hermosilla, Tobias Ritschel, Timo Ropinski

  Neural Computing and Applications 2021
• Intrinsic-Extrinsic Convolution and Pooling for Learning on 3D Protein Structures

  Pedro Hermosilla, Marco Schäfer, Matej Lang, Gloria Fackelmann, Pere-Pau Vázquez, Barbora Kozlíková, Michael Krone, Tobias Ritschel, Timo Ropinski

  International Conference on Learning Representations 2021
• Property-Based Testing for Visualization Development

  Michael Stegmaier, Dominik Engel, Jannik Olbrich, Timo Ropinski, Matthias Tichy

  EuroVis 2021
• 2D vs. 3D U-Net Abdominal Organ Segmentation in CT Data Using Organ Bounds

  Daria Kern, Ulrich Klauck, Timo Ropinski, André Mastmeyer

  SPIE Medical Imaging Conference 2021
• Blue Noise Plots

  Christian van Onzenoodt, Gurprit Singh, Timo Ropinski, Tobias Ritschel

  Computer Graphics Forum (Proc. of Annual Conference of the European Association for Computer Graphics) 2021
• Enabling Viewpoint Learning through Dynamic Label Generation

  Michael Schelling, Pedro Hermosilla, Pere-Pau Vázquez, Timo Ropinski

  Computer Graphics Forum (Proc. of Annual Conference of the European Association for Computer Graphics) 2021
• Net2Vis: Transforming Deep Convolutional Networks into Publication-Ready Visualizations

  Alex Bäuerle, Christian van Onzenoodt, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics 2021
• Interactive Subsurface Scattering for Materials With High Scattering Distances

  Sebastian Maisch, Timo Ropinski

  Computer Graphics Forum 2020
• The Moving Target of Visualization Software for an Increasingly Complex World

  Guido Reina, Hank Childs, Krešimir Matković, Katja Bühler, Manuela Waldner, David Pugmire, Barbora Kozlíková, Timo Ropinski, Patric Ljung, Takayuki Itoh, Meister Eduard Gröller, Michael Krone

  Computers & Graphics 2020
• exploRNN: Understanding Recurrent Neural Networks through Visual Exploration

  Alex Bäuerle, Raphael Störk, Timo Ropinski

  The Visual Computer 2020
• A perceptually optimised Bivariate Visualisation Scheme for high-dimensional Fold-change Data

  André Müller, Ludwig Lauser, Adalbert Wilhelm, Timo Ropinski, Matthias Platzer, Heiko Neumann, Hans Kestler

  Advances in Data Analysis and Classification 2020
• Automatic identification of crossovers in cryo-EM images of murine amyloid protein A fibrils with machine learning

  Matthias Weber, Alex Bäuerle, Matthias Schmidt, Matthias Neumann, Marcus Fähndrich, Timo Ropinski, Volker Schmidt

  Journal of Microscopy 2020
• Classifier-Guided Visual Correction of Noisy Labels for Image Classification Tasks

  Alex Bäuerle, Heiko Neumann, Timo Ropinski

  Computer Graphics Forum 2020
• Deep Volumetric Ambient Occlusion

  Dominik Engel, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Scientific Visualisation Conference) 2020
• On the Perceptual Influence of Shape Overlap on Data-Comparison Using Scatterplots

  Christian van Onzenoodt, Anke Huckauf, Timo Ropinski

  Computers & Graphics 2020
• Real-Time Visualization of 3D Amyloid-Beta Fibrils from 2D Cryo-EM Density Maps

  Hannah Kniesel, Timo Ropinski, Pedro Hermosilla

  Eurographics Workshop on Visual Computing for Biology and Medicine 2020
• Void Space Surfaces to Convey Depth in Vessel Visualizations

  Julian Kreiser, Pedro Hermosilla, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2020
• Convolutional neural network (CNN) applied to respiratory motion detection in fluoroscopic frames

  Christoph Baldauf, Alex Bäuerle, Timo Ropinski, Volker Rasche, Ina Vernikouskaya

  International Journal of Computer Assisted Radiology and Surgery 2019
• Deep-learning the Latent Space of Light Transport

  Pedro Hermosilla, Sebastian Maisch, Tobias Ritschel, Timo Ropinski

  Computer Graphics Forum 2019
• Detection of Herpesvirus Capsids in Transmission Electron Microscopy Images using Transfer Learning

  Kavitha Shaga Devan, Paul Walther, Jens von Einen, Timo Ropinski, Hans Kestler, Clarissa Read

  Histochemistry and Cell Biology 2019
• Inviwo - A Visualization System with Usage Abstraction Levels

  Daniel Jönsson, Peter Steneteg, Erik Sundén, Rickard Englund, Sathish Kottravel, Martin Falk, Anders Ynnerman, Ingrid Hotz, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics 2019
• Multi-Resolution Rendering for Computationally Expensive Lighting Effects

  Simon Besenthal, Sebastian Maisch, Timo Ropinski

  2019
• Total Denoising: Unsupervised Learning of 3D Point Cloud Cleaning

  Pedro Hermosilla, Tobias Ritschel, Timo Ropinski

  IEEE/CVF International Conference on Computer Vision 2019
• Training Object Detectors on Synthetic Images Containing Reflecting Materials

  Sebastian Hartwig, Timo Ropinski

  2019
• A General Illumination Model for Molecular Visualization

  Pedro Hermosilla, Pere-Pau Vázquez, Àlvar Vinacua, Timo Ropinski

  Computer Graphics Forum 2018
• A Model of Spatial Directness in Interactive Visualization

  Stefan Bruckner, Tobias Isenberg, Timo Ropinski, Alexander Wiebel

  IEEE Transactions on Visualization and Computer Graphics 2018
• A Survey of Flattening-Based Medical Visualization Techniques

  Julian Kreiser, Monique Meuschke, Gabriel Mistelbauer, Bernhard Preim, Timo Ropinski

  Computer Graphics Forum 2018
• Improving Perception of Molecular Surface Visualizations by Incorporating Translucency Effects

  Pedro Hermosilla, Sebastian Maisch, Pere-Pau Vázquez, Timo Ropinski

  Eurographics Workshop on Visual Computing for Biology and Medicine 2018
• Monte Carlo Convolution for Learning on Non-Uniformly Sampled Point Clouds

  Pedro Hermosilla, Tobias Ritschel, Pere-Pau Vázquez, Àlvar Vinacua, Timo Ropinski

  ACM Transactions on Graphics 2018
• Quantitative and Qualitative Analysis of the Perception of Semi-Transparent Structures in Direct Volume Rendering

  Rickard Englund, Timo Ropinski

  Computer Graphics Forum 2018
• Single-image Tomography: 3D Volumes from 2D Cranial X-Rays

  Philipp Henzler, Volker Rasche, Timo Ropinski, Tobias Ritschel

  Computer Graphics Forum 2018
• Visualization of Large Molecular Trajectories

  David Duran Rosich, Pedro Hermosilla, Timo Ropinski, Barbora Kozlíková, Àlvar Vinacua, Pere-Pau Vázquez

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2018
• Spatial Adjacency Maps for Translucency Simulation Under General Illumination

  Sebastian Maisch, Timo Ropinski

  Computer Graphics Forum 2017
• An Experimental Study on the Effects of Shading in 3D Perception of Volumetric Models

  Jose Díaz, Timo Ropinski, Isabel Navazo, Enrico Gobbetti, Pere-Pau Vázquez

  The Visual Computer 2017
• Decision Graph Embedding for High-Resolution Manometry Diagnosis

  Julian Kreiser, Alexander Hann, Eugen Zizer, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics 2017
• Evaluating the Influence of Stereoscopy on Cluster Perception in Scatterplots

  Christian van Onzenoodt, Julian Kreiser, Dominique Heer, Timo Ropinski

  Annual Conference of the Swedish Computer Graphics Association 2017
• How do Recent Machine Learning Advances Impact the Data Visualization Research Agenda?

  Timo Ropinski, Daniel Archambault, Min Chen, Ross Maciejewski, Klaus Mueller, Alexandru Telea, Martin Wattenberg

  2017
• Interactive GPU-based Generation of Solvent Excluded Surfaces

  Pedro Hermosilla, Michael Krone, Victor Guallar, Pere-Pau Vázquez, Àlvar Vinacua, Timo Ropinski

  The Visual Computer 2017
• Physics-based Visual Characterization of Molecular Interaction Forces

  Pedro Hermosilla, Jorge Estrada, Victor Guallar, Timo Ropinski, Àlvar Vinacua, Pere-Pau Vázquez

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2017
• Proceedings of the Eurographics Conference on Visualization

  Jeffrey Heer, Timo Ropinski, Jack van Wijk

  2017
• Protein Tunnel Reprojection for Physico-Chemical Property Analysis

  Jan Malzahn, Barbora Kozlíková, Timo Ropinski

  Eurographics Workshop on Visual Computing for Biology and Medicine 2017
• Visual Analysis of Stochastic Trajectory Ensembles in Organic Solar Cell Design

  Sathish Kottravel, Riccard Volpi, Mathieu Linares, Timo Ropinski, Ingrid Hotz

  Informatics 2017
• Visually Supporting Multiple Needle Placement in Irreversible Electroporation Interventions

  Julian Kreiser, Jacob Freedman, Timo Ropinski

  Computer Graphics Forum 2017
• A Comparative Study of Mipmapping Techniques for Interactive Volume Visualization

  Sebastian Maisch, Robin Skanberg, Timo Ropinski

  Journal of WSCG 2016
• A Crowdsourcing System for Integrated and Reproducible Evaluation in Scientific Visualization

  Rickard Englund, Sathish Kottravel, Timo Ropinski

  IEEE Pacific Visualization Symposium 2016
• A Survey of Perceptually Motivated 3D Visualization of Medical Image Data

  Bernhard Preim, Alexandra Baer, Douglas Cunningham, Tobias Isenberg, Timo Ropinski

  Computer Graphics Forum 2016
• A Visualization-Based Analysis System for Urban Search & Rescue Mission Planning Support

  Alexander Bock, Asa Svensson, Alexander Kleiner, Jonas Lundberg, Timo Ropinski

  Computer Graphics Forum 2016
• Classifying Medical Projection Techniques based on Parameterization Attribute Preservation

  Julian Kreiser, Timo Ropinski

  EuroVis Workshop on Reproducibility, Verification, and Validation in Visualization 2016
• Evaluating the Perception of Semi-Transparent Structures in Direct Volume Rendering Techniques (Best Paper Award)

  Rickard Englund, Timo Ropinski

  Computer Graphics and Interactive Techniques in Asia 2016
• Interactive 4D MRI Blood Flow Exploration and Analysis using Line Predicates

  Jochen Jankowai, Rickard Englund, Timo Ropinski, Ingrid Hotz

  Annual Conference of the Swedish Computer Graphics Association 2016
• Real-Time Molecular Visualization Supporting Diffuse Interreflections and Ambient Occlusion

  Robin Skanberg, Pere-Pau Vázquez, Victor Guallar, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2016
• Advanced Visualization Techniques for Laparoscopic Liver Surgery

  Dimitrios Felekidis, Peter Steneteg, Timo Ropinski

  Annual Conference of the Swedish Computer Graphics Association 2015
• Coverage-Based Opacity Estimation for Interactive Depth of Field in Molecular Visualization

  Sathish Kottravel, Martin Falk, Erik Sundén, Timo Ropinski

  IEEE Pacific Visualization Symposium 2015
• Direct Volume Interaction

  Alexander Wiebel, Tobias Isenberg, Stefan Bruckner, Timo Ropinski

  Annual Conference of the European Association for Computer Graphics 2015
• Direct Volume Interaction for Visual Data Analysis

  Alexander Wiebel, Tobias Isenberg, Stefan Bruckner, Timo Ropinski

  2015
• Efficient Volume Illumination with Multiple Light Sources through Selective Light Updates

  Erik Sundén, Timo Ropinski

  IEEE Pacific Visualization Symposium 2015
• Inviwo - An Extensible, Multi-Purpose Visualization Framework

  Erik Sundén, Peter Steneteg, Sathish Kottravel, Daniel Jönsson, Rickard Englund, Martin Falk, Timo Ropinski

  IEEE Scientific Visualisation Conference 2015
• Multimodal Volume Illumination

  Erik Sundén, Sathish Kottravel, Timo Ropinski

  Computers & Graphics 2015
• Visual Verification of Space Weather Ensemble Simulations

  Alexander Bock, Asher Pembroke, M. Leila Mays, Lutz Rastaetter, Anders Ynnerman, Timo Ropinski

  IEEE Scientific Visualisation Conference 2015
• A Survey of Volumetric Illumination Techniques for Interactive Volume Rendering

  Daniel Jönsson, Erik Sundén, Anders Ynnerman, Timo Ropinski

  Computer Graphics Forum 2014
• An Interactive Visualization System for Urban Search & Rescue Mission Planning

  Alexander Bock, Alexander Kleiner, Jonas Lundberg, Timo Ropinski

  IEEE International Symposium on Safety, Security, and Rescue Robotics 2014
• Continuous Levels-of-Detail and Visual Abstraction for Seamless Molecular Visualization

  Julius Parulek, Daniel Jönsson, Timo Ropinski, Stefan Bruckner, Anders Ynnerman, Ivan Viola

  Computer Graphics Forum 2014
• Hybrid Data Visualization Based on Depth Complexity Histogram Analysis

  Stefan Lindholm, Martin Falk, Erik Sundén, Alexander Bock, Anders Ynnerman, Timo Ropinski

  Computer Graphics Forum 2014
• Quantitative Analysis of Knee Movement Patterns through Comparative Visualization

  Khoa Tan Nguyen, Håkan Gauffin, Anders Ynnerman, Timo Ropinski

  2014
• The Ultrasound Visualization Pipeline - A Survey

  Åsmund Birkeland, Veronika Solteszova, Dieter Hönigmann, Odd Helge Gilja, Svein Brekke, Timo Ropinski, Ivan Viola

  2014
• Ultrasound Surface Extraction Using Radial Basis Functions

  Rickard Englund, Timo Ropinski

  International Symposium of Advances in Visual Computing 2014
• VCMass: A Framework for Verification of Coronal Mass Ejection Ensemble Simulations (Best Poster Award)

  Alexander Bock, M. Leila Mays, Lutz Rastaetter, Anders Ynnerman, Timo Ropinski

  2014
• Verifying Volume Rendering using Discretization Error Analysis

  Tiago Etiene, Daniel Jönsson, Timo Ropinski, Carlos Scheidegger, João Luiz Dihl Comba, Luis Gustavo Nonato, Robert M Kirby, Anders Ynnerman, Cláudio T Silva

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2014
• A Comparison of Volumetric Illumination Methods by Considering their Underlying Mathematical Models

  Neda Rostamzadeh, Daniel Jönsson, Timo Ropinski

  Annual Conference of the Swedish Computer Graphics Association 2013
• Advanced Direct Volume Visualization

  Timo Ropinski

  2013
• Analyzing and Reducing DTI Tracking Uncertainty by Combining Deterministic and Stochastic Approaches

  Khoa Tan Nguyen, Anders Ynnerman, Timo Ropinski

  International Symposium of Advances in Visual Computing 2013
• Feature Tracking in Time-Varying Volumetric Data through Scale Invariant Feature Transform

  Khoa Tan Nguyen, Timo Ropinski, Jonas Unger

  Annual Conference of the Swedish Computer Graphics Association 2013
• Guiding Deep Brain Stimulation Interventions by Fusing Multimodal Uncertainty Regions

  Alexander Bock, Norbert Lang, Gianpaolo Evangelista, Ralph Lehrke, Timo Ropinski

  IEEE Pacific Visualization Symposium 2013
• Large-Scale Multiple Sequence Alignment Visualization through Gradient Vector Flow Analysis

  Khoa Tan Nguyen, Timo Ropinski

  IEEE Symposium on Biological Data Visualization 2013
• Seamless Visual Abstraction of Molecular Surfaces

  Julius Parulek, Timo Ropinski, Ivan Viola

  Spring Conference on Computer Graphics 2013
• Coherency-based Curve Compression for High-order Finite Element Model Visualization

  Alexander Bock, Erik Sundén, Bingchen Liu, Burkhard Wünsche, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2012
• Deriving and Visualizing Uncertainty in Kinetic PET Modeling

  Khoa Tan Nguyen, Alexander Bock, Anders Ynnerman, Timo Ropinski

  Eurographics Workshop on Visual Computing for Biology and Medicine 2012
• Explicit Cache Management for Volume Ray-Casting on Parallel Architectures

  Daniel Jönsson, Per Ganestam, Michael Doggett, Anders Ynnerman, Timo Ropinski

  Eurographics Symposium on Parallel Graphics and Visualization 2012
• From Imprecise User Input to Precise Vessel Segmentations

  Stefan Diepenbrock, Timo Ropinski

  Eurographics Workshop on Visual Computing for Biology and Medicine 2012
• GPU-Accelerated Direct Volume Rendering of Finite Element Data Sets

  Bingchen Liu, Alexander Bock, Timo Ropinski, Martyn Nash, Poul Nielsen, Burkhard Wünsche

  Image and Vision Computing New Zealand 2012
• Historygrams: Enabling Interactive Global Illumination in Direct Volume Rendering Using Photon Mapping

  Daniel Jönsson, Joel Kronander, Timo Ropinski, Anders Ynnerman

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2012
• Unified Boundary-Aware Texturing for Interactive Volume Rendering

  Timo Ropinski, Stefan Diepenbrock, Stefan Bruckner, Klaus Hinrichs, Meister Eduard Gröller

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2012
• 2010 IEEE Visualization Contest Winner: Interactive Planning for Brain Tumor Resections

  Stefan Diepenbrock, Jörg-Stefan Praßni, Florian Lindemann, Hans-Werner Bothe, Timo Ropinski

  2011
• About the Influence of Illumination Models on Image Comprehension in Direct Volume Rendering

  Florian Lindemann, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2011
• Context-Aware Volume Navigation

  Stefan Diepenbrock, Timo Ropinski, Klaus Hinrichs

  IEEE Pacific Visualization Symposium 2011
• Image Plane Sweep Volume Illumination

  Erik Sundén, Anders Ynnerman, Timo Ropinski

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2011
• Slab-Based Raycasting: Exploiting GPU Computing for Volume Visualization

  Jörg Mensmann, Timo Ropinski, Klaus Hinrichs

  International Conference on Computer Graphics Theory and Applications 2011
• Survey of Glyph-Based Visualization Techniques for Spatial Multivariate Medical Data

  Timo Ropinski, Steffen Oeltze, Bernhard Preim

  Computers & Graphics 2011
• A GPU-Supported Lossless compression scheme for rendering time-varying volume data

  Jörg Mensmann, Timo Ropinski, Klaus Hinrichs

  EG International Symposium on Volume Graphics 2010
• Advanced Light Material Interaction for Direct Volume Rendering

  Florian Lindemann, Timo Ropinski

  EG International Symposium on Volume Graphics 2010
• Advanced Volume Illumination with Unconstrained Light Source Positioning

  Timo Ropinski, Christian Doring, Christof Rezk-Salama

  2010
• An Advanced Volume Raycasting Technique Using GPU Stream Processing

  Jörg Mensmann, Timo Ropinski, Klaus Hinrichs

  2010
• Efficient Acquisition and Clustering of Local Histograms for Representing Voxel Neighborhoods

  Christian Meß, Timo Ropinski

  EG International Symposium on Volume Graphics 2010
• Interactive Design and Debugging of GPU-based Volume Visualizations

  Jennis Meyer-Spradow, Timo Ropinski, Jörg Mensmann, Klaus Hinrichs

  International Conference on Computer Graphics Theory and Applications 2010
• Shape-based Transfer Functions for Volume Visualization

  Jörg-Stefan Praßni, Timo Ropinski, Jörg Mensmann, Klaus Hinrichs

  2010
• Single Shot Quantification of Gas-Filled Microbubbles with Ultrasound

  Jörg-Stefan Praßni, Klaus Storm, Timo Ropinski, Klaus Tiemann

  2010
• Uncertainty-Aware Guided Volume Segmentation

  Jörg-Stefan Praßni, Timo Ropinski, Klaus Hinrichs

  IEEE Transactions on Visualization and Computer Graphics (Proc. of IEEE Vizualisation and Visual Analytics) 2010
• Visualization by Example - A Constructive Visual Component-based Interface for Direct Volume Rendering

  Bingchen Liu, Burkhard Wünsche, Timo Ropinski

  International Conference on Computer Graphics Theory and Applications 2010
• An Evolution of the CUDA Architecture for Volume Rendering

  Jörg Mensmann, Timo Ropinski, Klaus Hinrichs

  2009
• Efficient Boundary Detection and Transfer Function Generation in Direct Volume Rendering

  Jörg-Stefan Praßni, Timo Ropinski, Klaus Hinrichs

  ISPRS Workshop on Dynamic and Multi-dimensional GIS 2009
• Glyph-Based Visualisation of Myocardial SPECT-Clinical Assessment

  Lars Stegger, Jennis Meyer-Spradow, Christian Doring, Kambiz Rahbar, Timo Ropinski, Otmar Schober, Klaus Hinrichs, Michael Schafers

  European Heart Journal 2009
• GPU-Based Volume Ray-Casting Supporting Specular Reflection and Refraction.

  Timo Ropinski, Klaus Hinrichs, Jens Kasten

  International Conference on Computer Graphics Theory and Applications 2009
• GPU-Based Volume Ray-Casting with Advanced Illumination

  Markus Hadwiger, Patric Ljung, Christof Rezk-Salama, Timo Ropinski

  Annual Conference of the European Association for Computer Graphics 2009
• Multimodal visualization with interactive closeups

  Timo Ropinski, Sven Hermann, Rainer Reich, Michael Schafers, Klaus Hinrichs, Timo Ropinski, Ivan Viola, Martin Biermann, Helwig Hauser, Klaus Hinrichs

  EG UK Theory and Practice of Computer Graphics 2009
• Rapid Prototyping of Volume Visualizations in Collaboration with Domain Experts

  Jennis Meyer-Spradow, Timo Ropinski, Jörg Mensmann, Klaus Hinrichs

  2009
• Slab-Based Raycasting: Efficient Volume Rendering with CUDA

  Jörg Mensmann, Timo Ropinski, Klaus Hinrichs

  2009
• Voreen: A Rapid-Prototyping Environment for Ray-Casting-Based Volume Visualizations

  Jennis Meyer-Spradow, Timo Ropinski, Jörg Mensmann, Klaus Hinrichs

  2009
• 3D User Interfaces for Collaborative Work

  Frank Steinicke, Gerd Bruder, Klaus Hinrichs, Marco Lopes, Timo Ropinski

  2008
• A Universal Virtual Locomotion System: Supporting Generic Redirected Walking and Dynamic Passive Haptics within Legacy 3D Graphics Applications

  Frank Steinicke, Timo Ropinski, Gerd Bruder, Klaus Hinrichs, Harald Frenz, Markus Lappe

  2008
• Accelerating Volume Raycasting using Occlusion Frustums.

  Jörg Mensmann, Timo Ropinski, Klaus Hinrichs

  2008
• Advanced Illumination Techniques for GPU Volume Raycasting

  Markus Hadwiger, Patric Ljung, Christof Rezk Salama, Timo Ropinski

  2008
• Efficient Shadows for GPU-based Volume Raycasting

  Timo Ropinski, Jens Kasten, Klaus Hinrichs

  2008
• Glyph-Based SPECT Visualization for the Diagnosis of Coronary Artery Disease

  Jennis Meyer-Spradow, Lars Stegger, Christian Doring, Timo Ropinski, Klaus Hinrichs

  2008
• Interactive Cutting Operations for Generating Anatomical Illustrations from Volumetric Data Sets

  Jörg Mensmann, Timo Ropinski, Klaus Hinrichs

  2008
• Interactive Reconstruction and Visualization of Dynamic 3D Ultrasound Data Sets.

  Timo Ropinski, Borislav Petkov, Larissa Fabritz, Klaus Hinrichs, Timo Ropinski, Jennis Meyer-Spradow, Stefan Diepenbrock, Jörg Mensmann, Klaus Hinrichs

  2008
• Moving Towards Generally Applicable Redirected Walking

  Frank Steinicke, Gerd Bruder, Timo Ropinski, Klaus Hinrichs

  Virtual Reality International Conference 2008
• Poster: Generic Redirected Walking & Dynamic Passive Haptics: Evaluation and Implications for Virtual Locomotion Interfaces

  Frank Steinicke, Gerd Bruder, Timo Ropinski, Klaus Hinrichs

  2008
• Stroke-Based Transfer Function Design.

  Timo Ropinski, Jörg-Stefan Praßni, Frank Steinicke, Klaus Hinrichs

  2008
• Supporting Depth and Motion Perception in Medical Volume Data

  Jennis Meyer-Spradow, Timo Ropinski, Klaus Hinrichs

  2008
• Supporting Spatial Cognition in Vascular Visualization

  Timo Ropinski, Jennis Meyer-Spradow, Frank Steinicke, Klaus Hinrichs

  2008
• Taxonomy and Usage Guidelines for Glyph-based Medical Visualization

  Timo Ropinski, Bernhard Preim

  Simulation and Visualization 2008
• The Holodeck Construction Manual.

  Frank Steinicke, Timo Ropinski, Gerd Bruder, Klaus Hinrichs

  2008
• 3D Modeling and Design Supported via Interscopic Interaction Strategies

  Frank Steinicke, Timo Ropinski, Gerd Bruder, Klaus Hinrichs

  2007
• Automatic Integration of Foliage into 3D City Models-Real-Time Tree Extraction and Rendering Based on Seasonal Large Scale Aerial Pictures.

  Timo Ropinski, Frank Steinicke, Jennis Meyer-Spradow, Klaus Hinrichs

  2007
• Focus + Context Resolution Adaption for Autostereoscopic Displays

  Timo Ropinski, Frank Steinicke, Gerd Bruder, Klaus Hinrichs

  2007
• Interactive Volume Rendering Supporting Global Illumination Phenomena

  Timo Ropinski, Jennis Meyer-Spradow, Stefan Diepenbrock, Jörg Mensmann, Klaus Hinrichs

  2007
• Internal Labels as Shape Cues for Medical Illustration.

  Timo Ropinski, Jörg-Stefan Praßni, Jan Roters, Klaus Hinrichs

  2007
• Interscopic User Interface Concepts for Fish Tank Virtual Reality Systems

  Frank Steinicke, Timo Ropinski, Gerd Bruder, Klaus Hinrichs

  2007
• Simultane 2D/3D User Interface Konzepte für autostereoskopische Desktop-VR Systeme

  Frank Steinicke, Gerd Bruder, Klaus Hinrichs, Timo Ropinski

  2007
• Surface Glyphs for Visualizing Multimodal Volume Data.

  Timo Ropinski, Michael Specht, Jennis Meyer-Spradow, Klaus Hinrichs, Bernhard Preim

  2007
• Towards Applicable 3D User Interfaces for Everyday Working Environments

  Frank Steinicke, Timo Ropinski, Gerd Bruder, Klaus Hinrichs

  2007
• A Hybrid Decision Support System for 3D City Planning

  Frank Steinicke, Klaus Hinrichs, Timo Ropinski

  International Commission II Symposium 2006
• A Multiple View System for Modeling Building Entities

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs, Gerd Bruder

  2006
• Collaborative Interaction Concepts for City Planning Tasks in Projection-Based Virtual Reality Systems

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs

  2006
• Design of a User-Oriented Application for the Exploration of Medical Datasets

  Timo Ropinski, Jennis Meyer-Spradow, Frank Steinicke, Klaus Hinrichs

  2006
• Efficient Ray-casting of Bricked Volume Datasets

  Jennis Meyer-Spradow, Timo Ropinski, Klaus Hinrichs

  2006
• Illustrating Dynamics of Time-Varying Volume Datasets in Static Images

  Jennis Meyer-Spradow, Timo Ropinski, Jan Vahrenhold, Klaus Hinrichs

  2006
• Interactive Volume Visualization Techniques for Subsurface Data

  Timo Ropinski, Klaus Hinrichs

  2006
• Object Selection in Virtual Environments Using an Improved Virtual Pointer Metaphor

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs

  2006
• Reflecting on the Potential of VR for the Future of HCI

  Timo Ropinski, Frank Steinicke, Klaus Hinrichs

  2006
• Simultaneously Viewing Monoscopic and Stereoscopic Content on Vertical-Interlaced Autostereoscopic Displays

  Timo Ropinski, Frank Steinicke, Gerd Bruder, Klaus Hinrichs

  2006
• Urban City Planning in Semi-Immersive Virtual Reality Systems.

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs, Jörg Mensmann

  2006
• Visual Exploration of Seismic Volume Datasets

  Timo Ropinski, Frank Steinicke, Klaus Hinrichs

  2006
• Visually Supporting Depth Perception in Angiography Imaging

  Timo Ropinski, Frank Steinicke, Klaus Hinrichs

  2006
• A Constrained Road-Based VR Navigation Technique for Travelling in 3D City Models

  Timo Ropinski, Frank Steinicke, Klaus Hinrichs

  2005
• A Generic Virtual Reality Software System's Architecture and Application

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs

  2005
• A Solution for the Focus and Context Problem in Geo-Virtual Environments

  Timo Ropinski, Klaus Hinrichs, Frank Steinicke

  2005
• A Tabletop Metaphor for Spatial Planning in Virtual Reality

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs, Jörg Mensmann

  2005
• An Efficient Approach for Emphasizing Regions of Interest in Ray-Casting based Volume Rendering

  Timo Ropinski, Frank Steinicke, Klaus Hinrichs

  2005
• Co-located Interaction Concepts for Large Screen Displays

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs

  2005
• Interactive Importance-Driven Visualization Techniques for Medical Volume Data

  Timo Ropinski, Frank Steinicke, Klaus Hinrichs

  2005
• Multimodal Interaction Metaphors for Manipulation of Distant Objects in Immersive Virtual Environments

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs

  2005
• Tentative Results in Focus-Based Medical Volume Visualization

  Timo Ropinski, Frank Steinicke, Klaus Hinrichs

  2005
• Virtual Reflections and Virtual Shadows in Mixed Reality Environments

  Frank Steinicke, Klaus Hinrichs, Timo Ropinski

  2005
• VR and Laser-Based Interaction in Virtual Environments Using a Dual-Purpose Interaction Metaphor

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs

  2005
• 3D Magic Lenses and Virtual Reflections: Real-time Approaches for Improving Interactive Visualization

  Timo Ropinski

  2004
• Exploration of geo-virtual Environments using 3D Magic Lenses

  Timo Ropinski

  2004
• Improved Virtual Pointer Metaphors for Interactive Object Selection in Virtual Environments

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs

  2004
• Real-Time Rendering of 3D Magic Lenses having arbitrary convex Shapes

  Timo Ropinski, Klaus Hinrichs

  Journal of WSCG (Proc. of International Conferences in Central Europe on Computer Graphics, Visualization and Computer Vision) 2004
• Selektion von Objekten in virtuellen Umgebungen mit der Improved Virtual Pointer Metapher

  Frank Steinicke, Timo Ropinski, Klaus Hinrichs

  2004
• Virtual Reflections for Augmented Reality Environments

  Timo Ropinski, Steffen Wachenfeld, Klaus Hinrichs

  2004
• Multimodale Interaktionen in desktop-basierten geo-virtuellen Visualisierungsumgebungen

  Torsten Heinen, Timo Ropinski, Martin Werth, Sven Fuhrmann

  2002