Dr. Denis Kalkofen is an Assistant Professor at the Institute for Computer Graphics and Vision (ICG) at Graz University of Technology. His research is focused on developing visualization, interaction and authoring techniques for Mixed Reality environments. He is especially interested in the combination of computer graphics and computer vision techniques in order to enable comprehensible and easily accessible Mixed Reality experiences. Denis received Dipl.-Ing. (2004) from the University of Magdeburg and Dr. techn. (2009) from Graz University of Technology. Before joining the ICG, he worked at the Virtual Reality Laboratory at the University of Michigan.

Learning Lightprobes for Mixed Reality Illumination
David Mandl, Kwang Moo Yi, Peter Mohr, Peter Roth, Pascal Fua, Vincent Lepetit, Dieter Schmalstieg, Denis Kalkofen IEEE International Symposium on Mixed and Augmented Reality (ISMAR), to appear, 2017
Dynamic Label Placement for Forensic Case Visualization
Christof Sirk, Denis Kalkofen, Denis Schmalstieg, Alexander Bornik EG/VGTC Conference on Visualization (Eurovis), to appear, 2017 Best Short Paper
Retargeting Video Tutorials Showing Tools With Surface Contact to Augmented Reality Peter Mohr, David Mandl, Markus Tatzgern, Eduardo Veas, Dieter Schmalstieg, Denis Kalkofen ACM Conference on Human Factors in Computing Systems (CHI), to appear, 2017
Adaptive User-Perspective Rendering Peter Mohr, Markus Tatzgern, Jens Grubert, Dieter Schmalstieg, Denis Kalkofen IEEE International Symposium on 3D User Interfaces (3DUI), to appear, 2017 Honorable Mention for Best Paper
Instant Mixed Reality Lighting from Casual Scanning Thomas Richter-Trummer, Denis Kalkofen, Jinwoo Park, Dieter Schmalstieg IEEE International Symposium on Mixed and Augmented Reality (ISMAR'16), pages 27 - 36, 2016
Temporal Coherence Strategies For Augmented Reality Labeling Jacob Boesen Madsen, Markus Tatzgern, Claus B Madsen, Dieter Schmalstieg, Denis Kalkofen Transactions on Visualization and Graphics (TVCG - Proceedings of IEEE VR), pages 1415 - 1423, 2016
Adaptive Information Density For Augmented Reality Displays Markus Tatzgern, Valeria Orso, Denis Kalkofen, Giulio Jacucci, Luciano Gamberini, Dieter Schmalstieg IEEE Virtual Reality (VR), pages 83, 2016
Retargeting Technical Documentation to Augmented Reality Peter Mohr, Bernhard Kerbl, Michael Donoser, Dieter Schmalstieg, Denis Kalkofen, ACM Conference on Human Factors in Computing Systems (CHI), pages 3337-3346, 2015
Interactive Disassembly Planning for Complex Objects Bernhard Kerbl, Denis Kalkofen, Markus Steinberger, Dieter Schmalstieg, Computer Graphics Forum (Proceedings of Eurographics), volume 34, issue 2(2015), pages 287–297, 2015
Exploring real world points of interest: Design and evaluation of object-centric exploration techniques for augmented reality Markus Tatzgern, Raphael Grasset, Eduardo Veas, Denis Kalkofen, Hartmut Seichter, Dieter Schmalstieg, Pervasive Mobile Computing 18: 55–70, 2015 PDF Youtube
Design Guidelines for Generating Augmented Reality Instructions. Cledja Rolim, Dieter Schmalstieg, Denis Kalkofen, Veronica Teichrieb IEEE International Symposium on Mixed and Augmented Reality (ISMAR), pages 120 - 123, 2015
Hedgehog Labeling: View Management Techniques for External Labels in 3D Space Markus Tatzgern, Denis Kalkofen, Raphael Grasset, Dieter Schmalstieg, IEEE Virtual Reality (VR), pages 27-32, 2014 PDF Youtube
Transitional Augmented Reality Navigation for Live Captured Scenes Markus Tatzgern, Raphael Grasset, Denis Kalkofen, Dieter Schmalstieg, IEEE Virtual Reality (VR), pages 21-26, 2014 PDF Youtube
Adaptive ghosted views for Augmented Reality Denis Kalkofen, Eduardo Veas, Stefanie Zollmann, Markus Steinberger, Dieter Schmalstieg, IEEE International Symposium on Mixed, Augmented Reality (ISMAR), pages 1-9, 2013 PDF
Exploring Distant Objects with Augmented Reality Markus Tatzgern, Raphael Grasset, Eduardo Veas, Denis Kalkofen, Hartmut Seichter, Dieter Schmalstieg, Joint Virtual Reality Conference of EGVE - EuroVR, pages 49-56, 2013 PDF Youtube
Dynamic compact visualizations for augmented reality. Markus Tatzgern, Denis Kalkofen, Dieter Schmalstieg, IEEE Virtual Reality (VR), pages 3-6, 2013 PDF Youtube
Entourage: Visualizing Relationships between Biological Pathways using Contextual Subsets Alexander Lex, Christian Partl, Denis Kalkofen, Marc Streit, Samuel Gratzl, Anne Mai Wassermann, Dieter Schmalstieg, Hanspeter Pfister, IEEE Transactions on Visualization and Computer Graphics (TVCG - Proceedings of InfoVis), pages 2536-2545, 2013 PDF Youtube
enRoute: Dynamic Path Extraction from Biological Pathway Maps for Exploring Heterogeneous Experimental Datasets. Christian Partl, Alexander Lex, Marc Streit, Denis Kalkofen, Karl Kashofer, Dieter Schmalstieg, BMC Bioinformatics, pages S3, 2013 PDF
enRoute: Dynamic path extraction from biological pathway maps for in-depth experimental data analysis. Christian Partl, Alexander Lex, Denis Kalkofen, Karl Kashofer, Marc Streit, Dieter Schmalstieg, Symposium on Biological Data Visualization (BioVis), pages 107-114, 2012 PDF Best Paper
OmniKinect: Real-time Dense Volumetric Data Acquisition and Applications Bernhard Kainz, Stefan Hauswiesner, Gerhard Reitmayr, Markus Steinberger, Raphael Grasset, Lukas Gruber, Eduardo Veas, Denis Kalkofen, Hartmut Seichter, Dieter Schmalstieg, Symposium on Virtual Reality Software, Technology (VRST), pages 25-32, 2012 PDF
Image-driven view management for augmented reality browsers Raphael Grasset, Tobias Langlotz, Denis Kalkofen, Markus Tatzgern, Dieter Schmalstieg, International Symposium on Mixed, Augmented Reality (ISMAR), pages 177-186, 2012 PDF
Interactive 4D overview and detail visualization in augmented reality Stefanie Zollmann, Denis Kalkofen, Christof Hoppe, Stefan Kluckner, Horst Bischof, Gerhard Reitmayr, International Symposium on Mixed, Augmented Reality (ISMAR), pages 167-176, 2012 PDF
Frame Cache Management for Multi-frame Rate Systems Stefan Hauswiesner, Philipp Grasmug, Denis Kalkofen, Dieter Schmalstieg, International Symposium on Visual Computing (ISVC), pages 285-294, 2012 PDF
Ray prioritization using stylization and visual saliency Markus Steinberger, Bernhard Kainz, Stefan Hauswiesner, Rostislav Khlebnikov, Denis Kalkofen, Dieter Schmalstieg, Computers & Graphics, pages 673-684, 2012 PDF
Using Perceptual Features to Prioritize Ray-based Image Generation Bernhard Kainz, Markus Steinberger, Stefan Hauswiesner, Rostislav Khlebnikov, Denis Kalkofen, Dieter Schmalstieg, ACM Siggraph Symposium on Interactive 3D Graphics, Games (I3D), 2011 PDF
Visualization Techniques for Augmented Reality Denis Kalkofen, Christian Sandor, Sean White, Dieter Schmalstieg, Handbook of Augmented Reality, pages 65-98, 2011
Embedded Virtual Views for Augmented Reality Navigation Markus Tatzgern, Denis Kalkofen, Raphael Grasset, Dieter Schmalstieg, Workshop on Visualization in Mixed Reality Environments, International Symposium on Mixed, Augmented Reality (ISMAR), 2011 PDF
Multi-perspective Compact Explosion Diagrams Markus Tatzgern, Denis Kalkofen, Dieter Schmalstieg, Computer & Graphics, pages 135--147, 2011 PDF
Compact explosion diagrams Markus Tatzgern, Denis Kalkofen, Dieter Schmalstieg, Non-Photorealistic Animation, Rendering (NPAR), pages 17-26, 2010 PDF
Color harmonization for Augmented Reality Lukas Gruber, Denis Kalkofen, Dieter Schmalstieg, IEEE International Symposium on Mixed, Augmented Reality (ISMAR), pages 227-228, 2010 PDF
Image-based ghostings for Single Layer Occlusions in Augmented Reality Stefanie Zollmann, Denis Kalkofen, Erick Mendez, Gerhard Reitmayr, IEEE International Symposium on Mixed, Augmented Reality (ISMAR), pages 19-26, 2010 PDF
Multi-Frame Rate Volume Rendering Stefan Hauswiesner, Denis Kalkofen, Dieter Schmalstieg, Eurographics Symposium on Parallel Graphics, Visualization, pages 19-26, 2010 PDF
Augmented Reality for Minimally Invasive Surgery: Overview and Some Recent Advances Pablo Lamata, Ali Wajid, Alicia Cano, Jordi Cornella, Jerome Declerck, Ole J. Elle, Adinda Freudenthal, Hugo Furtado, Denis Kalkofen, Edvard Naerum, Eigil Samset, Patricia Sánchez-Gonzalez, Francisco M. Sánchez-Margallo, Dieter Schmalstieg, Mauro Sette, Thomas Stüdeli, Jos Vander Sloten, Enrique J. Gómez, Augmented Reality, Soha Maad (Ed.) ISBN: 978-953-7619-69-5, 2010 PDF
Comprehensible Visualization for Augmented Reality Denis Kalkofen, Erick Mendez, Dieter Schmalstieg, IEEE Transactions on Visualization and Computer Graphics, pages 193-204, 2009 PDF
Explosion Diagrams in Augmented Reality Denis Kalkofen, Markus Tatzgern, Dieter Schmalstieg, IEEE Virtual Reality, pages 71-78, 2009 PDF
Adaptive Visualization in Outdoor Augmented Reality Displays Denis Kalkofen, Stefanie Zollmann, Gerhard Schall, Gerhard Reitmayr, Dieter Schmalstieg, The Going Out Workshop, IEEE International Symposium on Mixed, Augmented Reality (ISMAR), 2009 PDF
Visualization tool for improved accuracy in needle placement during percutaneous radio-frequency ablation of liver tumors Thomas Stüdeli, Denis Kalkofen, Petter Risholm, Ali Wajid, Eigil Samset, Medical Imaging 2008: Visualization, Image-Guided Procedures,, Modeling, SPIE Vol. 6918, 2008 PDF
How do Interventionists Navigate to the Tumour Thomas Stüdeli, Denis Kalkofen, Adinda Freudenthal, Nordic Ergonomic Society Conference (NES), 2007 PDF
Interactive Focus and Context Visualization for Augmented Reality Denis Kalkofen, Erick Mendez, Dieter Schmalstieg, IEEE International Symposium on Mixed, Augmented Reality (ISMAR), pages 191-201, 2007 PDF Best Student Paper
Integrated Medical Workflow for Augmented Reality Applications Denis Kalkofen, Bernhard Reitinger, Petter Risholm, Alexander Bornik, Reinhard Beichel, Dieter Schmalstieg, Eigil Samset, MICCAI Workshop on Augmented Environments for Medical Imaging, Computer-Aided Surgery (AMI-ARCS), 2006 PDF
Interactive Context-driven Visualization Tools for Augmented Reality Erick Mendez, Denis Kalkofen, Dieter Schmalstieg, IEEE International Symposium on Mixed, Augmented Reality (ISMAR), pages 209--218, 2006 PDF