Ritschel, Tobias

 Tobias Ritschel, Dr.-Ing.

 Professor of Computer Graphics
 University College London

News



Research Interests

Interactive Global Illumination
How can graphics hardware (GPUs) be used to reproduce advanced visual phenomena such as soft shadows, indirect shadows, soft reflections, caustics or volumetric light in a perceptually plausible way?
Perceptual Graphics
How are colors, shapes, or spatial layout perceived by a human observer? How can this understanding be used to predict and consequently improve the way a humans and machines interact?
Non-physical Graphics
While physical laws define how to do render shadows or reflections "right", how to properly project a 3D scene onto a 2D image or how to deform a shape in a physical way, they sometimes are to restrictive. How can we go beyond physical laws in an appropriate way, such that a machine offers new expressive posibilities to an artist?
Data-driven Graphics
Given the vast amount of information in user-generated content online, how can classic computer graphics techniques such as rendering or shape modelling benefit from them and for which new application will they allow?

Team

Philipp HenzlerPhD student
Michael FischerPhD student
David GriffithsPhD student (with J Boehm)
David WaltonPostdoc (with A Steed)
Rafael Kuffner dos AnjosPostdoc (with A Steed)


2022


Metappearance: Meta-Learning for Visual Appearance Reproduction
M Fischer, T Ritschel
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 41(6)
[WWW] [PDF] [YT] [Code]

Eikonal Fields for Refractive Novel-View Synthesis
M Bemana, K Myszkowski, J Revall Frisvad, H-P Seidel, T Ritschel
SIGGRAPH
[PDF] [YT] [WWW]

ReLU Fields: The Little Non-linearity That Could
A Karnewar, T Ritschel, O Wang, N Mitra
SIGGRAPH
[PDF] [WWW] [Code]

Clean implicit 3d structure from noisy 2d stem images
H Kniesel, T Ropinski, T Bergner, K S Devan, C Read, P Walther, T Ritschel, P Hermosilla
Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition
[PDF] [Code]

Variance-Aware Weight Initialization for Point Convolutional Neural Networks
P Hermosilla, M Schelling, T Ritschel, T Ropinski
European Conference on Computer Vision
[PDF]

Neural precomputed radiance transfer
G Rainer, A Bousseau, T Ritschel, G Drettakis
Computer Graphics Forum (Proc. Eurographics) 41(2)
[WWW] [PDF]

OutCast: Outdoor Single-image Relighting with Cast Shadows
D Griffiths, T Ritschel, J Philip
Computer Graphics Forum (Proc. Eurographics) 41(2)
[PDF] [WWW]

Metameric Inpainting for Image Warping
R K Dos Anjos, D R Walton, K Aksit, S Friston, D Swapp, A Steed, T Ritschel
IEEE Transactions on Visualization and Computer Graphics
[WWW]

3inGAN: Learning a 3D generative model from images of a self-similar scene
A Karnewar, O Wang, T Ritschel, N J Mitra
International Conference on 3D Vision
[PDF] [WWW] [Code]

Metameric varifocal holograms
D R Walton, K Kavakli, R K Dos Anjos, D Swapp, T Weyrich, H Urey, A Steed, T Ritschel, K Aksit
IEEE Virtual Reality and 3D User Interfaces
[PDF] [WWW] [YT] [Code]

Learning HDR video reconstruction for dual-exposure sensors with temporally-alternating exposures
U Cogalan, M Bemana, K Myszkowski, H-P Seidel, T Ritschel
Computers & Graphics

ONIX: an X-ray deep-learning tool for 3D reconstructions from sparse views
Y Zhang, Z Yao, T Ritschel, P Villanueva-Perez
arXiv preprint arXiv:2203.00682

Beyond Flicker, Beyond Blur: View-coherent Metameric Light Fields for Foveated Display
P Kohli, D R Walton, R K dos Anios, A Steed, T Ritschel
IEEE Virtual Reality and 3D User Interfaces
[WWW] [PDF] [YT]

Learning to Learn and Sample BRDFs
C Liu, M Fischer, T Ritschel
arXiv preprint arXiv:2210.03510

Learning to Rasterize Differentiable
C Wu, Z Montazeri, T Ritschel
arXiv preprint arXiv:2211.13333

Plateau-free Differentiable Path Tracing
M Fischer, T Ritschel
arXiv preprint arXiv:2211.17263

2021


Beyond blur: Real-time ventral metamers for foveated rendering
D R Walton, R K Dos Anjos, S Friston, D Swapp, K Aksit, A Steed, T Ritschel
ACM Transactions on Graphics (Proc. SIGGRAPH) 40(4)
[PDF] [WWW] [YT]

Generative modelling of BRDF textures from flash images
P Henzler, V Deschaintre, N J Mitra, T Ritschel
ACM Transactions on Graphics (Proc. SIGGRAPH Asia)
[PDF] [WWW]

Unsupervised learning of 3d object categories from videos in the wild
P Henzler, J Reizenstein, P Labatut, R Shapovalov, T Ritschel, A Vedaldi, D Novotny
Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition
[PDF] [WWW]

Blue noise plots
C van Onzenoodt, G Singh, T Ropinski, T Ritschel
Computer Graphics Forum (Proc. Eurographics) 40(2)
[PDF]

Neural BRDF representation and importance sampling
A Sztrajman, G Rainer, T Ritschel, T Weyrich
Computer Graphics Forum 40(6)
[WWW] [PDF] [Code]

PhaseGAN: a deep-learning phase-retrieval approach for unpaired datasets
Y Zhang, M A Noack, P Vagovic, K Fezzaa, F Garcia-Moreno, T Ritschel, P Villanueva-Perez
Optics express 29(13)
[PDF]

Curiosity-driven 3D object detection without labels
D Griffiths, J Boehm, T Ritschel
International Conference on 3D Vision
[PDF]
Data-driven deep density estimation
P Puchert, P Hermosilla, T Ritschel, T Ropinski
Neural Computing and Applications

2020


Intrinsic-extrinsic convolution and pooling for learning on 3d protein structures
P Hermosilla, M Schäfer, M Lang, G Fackelmann, P P Vazquez, B Kozlikova, M Krone, T Ritschel, T Ropinski
International Conference on Learning Representations
[PDF] [Code]

X-fields: Implicit neural view-, light-and time-image interpolation
M Bemana, K Myszkowski, H-P Seidel, T Ritschel
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 39(6)
[WWW] [PDF] [YT]

Learning a neural 3d texture space from 2d exemplars
P Henzler, N J Mitra, T Ritschel
Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition
[WWW] [PDF] [YT]

Finding your (3D) center: 3D object detection using a learned loss
D Griffiths, J Boehm, T Ritschel
European Conference on Computer Vision
[WWW] [PDF] [YT]

Deep Generative Modelling of Human Reach-and-Place Action
C Daly, Y Nakamura, T Ritschel
arXiv preprint arXiv:2010.02345

2019


Perceptual rasterization for head-mounted display image synthesis.
S Friston, T Ritschel, A Steed
ACM Transactions on Graphics (Proc. SIGGRAPH) 38(4)
[WWW] [PDF] [YT]

Deep point correlation design
T Leimkühler, G Singh, K Myszkowski, H-P Seidel, T Ritschel
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 38(6)

Deep appearance maps
M Maximov, L Leal-Taixe, M Fritz, T Ritschel
Proceedings of the IEEE/CVF International Conference on Computer Vision
[PDF]

Total denoising: Unsupervised learning of 3D point cloud cleaning
P Hermosilla, T Ritschel, T Ropinski
Proceedings of the IEEE/CVF international conference on computer vision
[PDF]

Deep-learning the Latent Space of Light Transport
P Hermosilla, S Maisch, T Ritschel, T Ropinski
Computer Graphics Forum (Proc. EGSR) 38(4)
[PDF] [YT] [Code]

Learning to Predict Image-based Rendering Artifacts with Respect to a Hidden Reference Image
M Bemana, J Keinert, K Myszkowski, M Bätz, M Ziegler, H-P Seidel, T Ritschel
Computer Graphics Forum 38(7)
[PDF] [WWW]

Distortion-Free Displacement Mapping
T Zirr, T Ritschel
Computer Graphics Forum 38(8)
[WWW] [PDF]

2018


Laplacian kernel splatting for efficient depth-of-field and motion blur synthesis or reconstruction
T Leimkühler, H-P Seidel, T Ritschel
ACM Transactions on Graphics (Proc. SIGGRAPH) 37(4)
[WWW] [PDF] [YT]

Monte Carlo convolution for learning on non-uniformly sampled point clouds
P Hermosilla, T Ritschel, P P Vazquez, { Vinacua, T Ropinski
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 37(6)
[PDF] [Code]

Escaping Plato's Cave using Adversarial Training: 3D Shape From Unstructured 2D Image Collections
P Henzler, N Mitra, T Ritschel
Proceedings of the IEEE International Conference on Computer Vision
[WWW] [PDF]

Single-image tomography: 3D volumes from 2D cranial X-rays
P Henzler, V Rasche, T Ropinski, T Ritschel
Computer Graphics Forum (Proc. Eurographics) 37(2)
[PDF] [YT] [WWW]

Joint material and illumination estimation from photo sets in the wild
T Y Wang, T Ritschel, N J Mitra
International Conference on 3D Vision

Learning on the edge: Explicit boundary handling in cnns
C Innamorati, T Ritschel, T Weyrich, N J Mitra
International Journal of Computer Vision, 1-10, 2019
Deep learning for graphics
N Mitra, T Ritschel, I Kokkinos, P Guerrero, V Kim, K Rematas, E Yumer
Eurographics 2018 Courses
[WWW]

2017


Reflectance and natural illumination from single-material specular objects using deep learning
S Georgoulis, K Rematas, T Ritschel, E Gavves, M Fritz, L Van Gool, T Tuytelaars
IEEE Transactions on Pattern Analysis and Machine Intelligence 40(8)

What is around the camera?
S Georgoulis, K Rematas, T Ritschel, M Fritz, T Tuytelaars, L Van Gool
Proceedings of the IEEE International Conference on Computer Vision

Practical capture and reproduction of phosphorescent appearance
O Nalbach, H-P Seidel, T Ritschel
Computer Graphics Forum (Proc. Eurographics) 36(2)
[PDF] [WWW] [YT]

Texture stationarization: Turning photos into tileable textures
J Moritz, S James, T S Haines, T Ritschel, T Weyrich
Computer Graphics Forum (Proc. Eurographics) 36(2)
[WWW]

Deep shading: convolutional neural networks for screen space shading
O Nalbach, E Arabadzhiyska, D Mehta, H-P Seidel, T Ritschel
Computer Graphics Forum (Proc. EGSR) 36(4)
[PDF] [WWW]

Decomposing single images for layered photo retouching
C Innamorati, T Ritschel, T Weyrich, N J Mitra
Computer Graphics Forum (Proc. EGSR) 36(4)
[PDF] [WWW]

Minimal Warping: Planning Incremental Novel-view Synthesis
T Leimkühler, H-P Seidel, T Ritschel
Computer Graphics Forum (Proc. EGSR) 36(4)
[PDF] [WWW]

Perceptual real-time 2D-to-3D conversion using cue fusion
T Leimkühler, P Kellnhofer, T Ritschel, K Myszkowski, H-P Seidel
IEEE Transactions on Visualization and Computer Graphics 24(6)

2016


Novel views of objects from a single image
K Rematas, C H Nguyen, T Ritschel, M Fritz, T Tuytelaars
IEEE Transactions on Pattern Analysis and Machine Intelligence 39(8)
[PDF] [WWW]

Scalable inside-out image-based rendering
P Hedman, T Ritschel, G Drettakis, G Brostow
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 35(6)
[PDF] [WWW] [YT]

Motion parallax in stereo 3D: Model and applications
P Kellnhofer, P Didyk, T Ritschel, B Masia, K Myszkowski, H-P Seidel
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 35(6)
[PDF] [WWW] [YT]

Deep reflectance maps
K Rematas, T Ritschel, M Fritz, E Gavves, T Tuytelaars
Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition
[PDF] [WWW]

Proxy-guided image-based rendering for mobile devices
B Reinert, J Kopf, T Ritschel, E Cuervo, D Chu, H-P Seidel
Computer Graphics Forum (Proc. Pacific Graphics) 35(7)
[WWW] [PDF]

Efficient Multi-image Correspondences for On-line Light Field Video Processing
{ Dabala, M Ziegler, P Didyk, F Zilly, J Keinert, K Myszkowski, H-P Seidel, P Rokita, T Ritschel
Computer Graphics Forum (Proc. Pacific Graphics) 35(7)

Projective blue-noise sampling
B Reinert, T Ritschel, H-P Seidel, I Georgiev
Computer Graphics Forum 35(1)
[PDF] [WWW] [YT]

Transformation-aware perceptual image metric
P Kellnhofer, T Ritschel, K Myszkowski, H-P Seidel
Journal of Electronic Imaging 25(5)

Animated 3D creatures from single-view video by skeletal sketching.
B Reinert, T Ritschel, H-P Seidel
Graphics Interface
[PDF] [WWW]

Real-time novel-view synthesis for volume rendering using a piecewise-analytic representation
G Lochmann, B Reinert, A Buchacher, T Ritschel
VMV
[WWW] [PDF]

2015


Data-driven color manifolds
C H Nguyen, T Ritschel, H-P Seidel
ACM Transactions on Graphics (TOG) 34(2)
[Paper] [WWW]

Guiding Image Manipulations using Shape-appearance Subspaces from Co-alignment of Image Collections
C H Nguyen, O Nalbach, T Ritschel, H-P Seidel
Computer Graphics Forum (Proc. Eurographics) 34(2)
[PDF] [WWW]

Purkinje images: conveying different content for different luminance adaptations in a single image
S Arpa, T Ritschel, K Myszkowski, T Capin, H-P Seidel
Computer Graphics Forum 34(1)
[PDF] [WWW]

Modeling luminance perception at absolute threshold
P Kellnhofer, T Ritschel, K Myszkowski, E Eisemann, H-P Seidel
Computer Graphics Forum 34(4)
[PDF] [WWW]

What is holding back convnets for detection?
B Pepik, R Benenson, T Ritschel, B Schiele
German Conference on Pattern Recognition

3d object class detection in the wild
B Pepik, M Stark, P Gehler, T Ritschel, B Schiele
Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition Workshops
[PDF]

What makes 2D-to-3D stereo conversion perceptually plausible?
P Kellnhofer, T Leimkühler, T Ritschel, K Myszkowski, H-P Seidel
Proceedings of the ACM SIGGRAPH Symposium on Applied Perception

The Bounced Z-buffer for Indirect Visibility.
O Nalbach, T Ritschel, H-P Seidel
VMV

A transformation-aware perceptual image metric
P Kellnhofer, T Ritschel, K Myszkowski, H-P Seidel
Human Vision and Electronic Imaging XX

2014


On-line learning of parametric mixture models for light transport simulation
J Vorba, O Karlik, M Sik, T Ritschel, J Krivanek
ACM Transactions on Graphics (Proc. SIGGRAPH) 33(4)
[PDF] [WWW]

Image-based synthesis and re-synthesis of viewpoints guided by 3d models
K Rematas, T Ritschel, M Fritz, T Tuytelaars
Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition
[PDF] [WWW]

Manipulating refractive and reflective binocular disparity
{ Dabala, P Kellnhofer, T Ritschel, P Didyk, K Templin, K Myszkowski, P Rokita, H-P Seidel
Computer Graphics Forum (Proc. Eurographics) 33(2)
[PDF] [WWW]

Spectral ray differentials
O Elek, P Bauszat, T Ritschel, M Magnor, H-P Seidel
Computer Graphics Forum (Proc. EGSR) 33(4)
[PDF] [WWW]

Stereo day-for-night: Retargeting disparity for scotopic vision
P Kellnhofer, T Ritschel, P Vangorp, K Myszkowski, H-P Seidel
ACM Transactions on Applied Perception (TAP) 11(3)
[PDF] [WWW]

Improving perception of binocular stereo motion on 3D display devices
P Kellnhofer, T Ritschel, K Myszkowski, H-P Seidel
Stereoscopic Displays and Applications XXV

Deep screen space
O Nalbach, T Ritschel, H-P Seidel
ACM Symposium on Interactive 3D Graphics and Games
[PDF] [WWW]

Generating realistic camera shake for virtual scenes
C Kurz, T Ritschel, E Eisemann, T Thormählen, H-P Seidel
JVRB-Journal of Virtual Reality and Broadcasting 10(7)

Principal-Ordinates Propagation for real-time rendering of participating media
O Elek, T Ritschel, C Dachsbacher, H-P Seidel
Computers & graphics
[PDF] [WWW]

Real-time Reflective and Refractive Novel-view Synthesis.
G Lochmann, B Reinert, T Ritschel, S Müller, H-P Seidel
VMV
[PDF] [WWW]

Progressive Spectral Ray Differentials.
O Elek, P Bauszat, T Ritschel, M A Magnor, H-P Seidel
VMV
[PDF] [WWW]

Interactive Appearance Editing in RGB-D Images
S Bergmann, T Ritschel, C Dachsbacher
VMV
[PDF]

Deep Screen Space for Indirect Lighting of Volumes
O Nalbach, T Ritschel, H-P Seidel
VMV
[PDF] [WWW]

2013


Interactive by-example design of artistic packing layouts
B Reinert, T Ritschel, H-P Seidel
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 32(6)
[PDF] [WWW]

Optimizing disparity for motion in depth
P Kellnhofer, T Ritschel, K Myszkowski, H-P Seidel
Computer Graphics Forum (Proc. EGSR) 32(4)
[PDF] [WWW]

Material editing in complex scenes by surface light field manipulation and reflectance optimization
C H Nguyen, D Scherzer, T Ritschel, H-P Seidel
Computer Graphics Forum 32(2pt2)
[PDF] [WWW]

Real-time screen-space scattering in homogeneous environments
O Elek, T Ritschel, H-P Seidel
IEEE Computer Graphics and applications 33(3)

2012


A luminance-contrast-aware disparity model and applications
P Didyk, T Ritschel, E Eisemann, K Myszkowski, H-P Seidel, W Matusik
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 31(6)
[PDF] [WWW]

Material memex: Automatic material suggestions for 3d objects
A Jain, T Thormählen, T Ritschel, H-P Seidel
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 31(6)
[PDF] [WWW]

Highlight microdisparity for improved gloss depiction
K Templin, P Didyk, T Ritschel, K Myszkowski, H-P Seidel
ACM Transactions on Graphics (TOG) 31(4)
[PDF] [WWW]

Exploring shape variations by 3d-model decomposition and part-based recombination
A Jain, T Thormählen, T Ritschel, H-P Seidel
Computer Graphics Forum (Proc. Eurographics) 31(2pt3)
[PDF] [WWW]

A computational model of afterimages
T Ritschel, E Eisemann
Computer Graphics Forum (Proc. Eurographics) 31(2pt3)
[PDF] [WWW]

3D material style transfer
C H Nguyen, T Ritschel, K Myszkowski, E Eisemann, H-P Seidel
Computer Graphics Forum (Proc. Eurographics) 31(2pt2)
[PDF] [WWW]

Pre-convolved radiance caching
D Scherzer, C H Nguyen, T Ritschel, H-P Seidel
Computer Graphics Forum (Proc. EGSR) 31(4)
[PDF] [WWW]

Homunculus Warping: Conveying importance using self-intersection-free non-homogeneous mesh deformation
B Reinert, T Ritschel, H-P Seidel
Computer Graphics Forum (Proc. Pacific Graphics) 31(7)
[PDF] [WWW]

The state of the art in interactive global illumination
T Ritschel, C Dachsbacher, T Grosch, J Kautz
Computer Graphics Forum 31(1)

Interactive cloud rendering using temporally coherent photon mapping
O Elek, T Ritschel, A Wilkie, H-P Seidel
Computers & Graphics 36(8)
[PDF]

Apparent stereo: The cornsweet illusion can enhance perceived depth
P Didyk, T Ritschel, E Eisemann, K Myszkowski, H-P Seidel
Human Vision and Electronic Imaging XVII

Virtual passepartouts
T Ritschel, K Templin, K Myszkowski, H-P Seidel
Proceedings of the Symposium on Non-Photorealistic Animation and Rendering
[PDF] [WWW]

Screen-space bent cones: A practical approach
O Klehm, T Ritschel, E Eisemann, H-P Seidel
GPU Pro

2011


A perceptual model for disparity
P Didyk, T Ritschel, E Eisemann, K Myszkowski, H-P Seidel
ACM Transactions on Graphics (Proc. SIGGRAPH) 30(4)
[PDF]

Edge-aware color appearance
M H Kim, T Ritschel, J Kautz
ACM Transactions on Graphics (TOG) 30(2)
[PDF]

Computer-suggested facial makeup
K Scherbaum, T Ritschel, M Hullin, T Thormählen, V Blanz, H-P Seidel
Computer Graphics Forum (Proc. Eurographics) 30(2)
[PDF] [Video] [WWW]

Manylods: Parallel many-view level-of-detail selection for real-time global illumination
M Hollander, T Ritschel, E Eisemann, T Boubekeur
Computer Graphics Forum (Proc. EGSR) 30(4)
[PDF] [Video] [WWW]

Making imperfect shadow maps view-adaptive: High-quality global illumination in large dynamic scenes
T Ritschel, E Eisemann, I Ha, J D Kim, H-P Seidel
Computer Graphics Forum 30(8)
[PDF] [Video]

Apparent resolution enhancement for animations
K Templin, P Didyk, T Ritschel, E Eisemann, K Myszkowski, H-P Seidel
Proceedings of the 27th Spring Conference on Computer Graphics
[PDF] [WWW]

Bent Normals and Cones in Screen-space.
O Klehm, T Ritschel, E Eisemann, H-P Seidel
VMV
[PDF] [Video]

2010


Interactive on-surface signal deformation
T Ritschel, T Thormählen, C Dachsbacher, J Kautz, H-P Seidel
ACM Transactions on Graphics (Proc. SIGGRAPH)
[PDF] [Video] [WWW]

Apparent display resolution enhancement for moving images
P Didyk, E Eisemann, T Ritschel, K Myszkowski, H-P Seidel
ACM Transactions on Graphics (Proc. SIGGRAPH) 29(3)
[PDF] [Video] [WWW]

Perceptually-motivated real-time temporal upsampling of 3D content for high-refresh-rate displays
P Didyk, E Eisemann, T Ritschel, K Myszkowski, H-P Seidel
Computer Graphics Forum (Proc. Eurographics) 29(2)
[PDF] [WWW]

Adaptive Image-space Stereo View Synthesis.
P Didyk, T Ritschel, E Eisemann, K Myszkowski, H-P Seidel
VMV
[PDF] [Video] [AVI] [WWW]
Camera motion style transfer
C Kurz, T Ritschel, E Eisemann, T Thormählen, H-P Seidel
2010 Conference on Visual Media Production

2009


Micro-rendering for scalable, parallel final gathering
T Ritschel, T Engelhardt, T Grosch, H-P Seidel, J Kautz, C Dachsbacher
ACM Transactions on Graphics (Proc. SIGGRAPH) 28(5)
[PDF]

Interactive reflection editing
T Ritschel, M Okabe, T Thormählen, H-P Seidel
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 28(5)
[PDF]

Temporal glare: Real-time dynamic simulation of the scattering in the human eye
T Ritschel, M Ihrke, J R Frisvad, J Coppens, K Myszkowski, H-P Seidel
Computer Graphics Forum (Proc. Eurographics) 28(2)
[PDF]

Approximating dynamic global illumination in image space
T Ritschel, T Grosch, H-P Seidel
ACM Symposium on Interactive 3D Graphics and Games
[PDF]

Perceptual influence of approximate visibility in indirect illumination
I Yu, A Cox, M H Kim, T Ritschel, T Grosch, C Dachsbacher, J Kautz
ACM Transactions on Applied Perception (Proc. SAP) 6(4)
[PDF]

Real-time Indirect Illumination with Clustered Visibility.
Z Dong, T Grosch, T Ritschel, J Kautz, H-P Seidel
VMV
A perceptual evaluation of 3D unsharp masking
M Ihrke, T Ritschel, K Smith, T Grosch, K Myszkowski, H-P Seidel
Human Vision and Electronic Imaging XIV
A question of time: Importance and possibilities of high refresh-rates
P Didyk, E Eisemann, T Ritschel, K Myszkowski, H-P Seidel
Intel Visual Computing Research Conference

2008


3D unsharp masking for scene coherent enhancement
T Ritschel, K Smith, M Ihrke, T Grosch, K Myszkowski, H-P Seidel
ACM Transactions on Graphics (Proc. SIGGRAPH) 27(3)
[PDF]

Imperfect shadow maps for efficient computation of indirect illumination
T Ritschel, T Grosch, M H Kim, H-P Seidel, C Dachsbacher, J Kautz
ACM Transactions on Graphics (Proc. SIGGRAPH Asia) 27(5)
[PDF]

Interactive global illumination based on coherent surface shadow maps.
T Ritschel, T Grosch, J Kautz, H-P Seidel
Graphics Interface
[PDF]

2007


Fast gpu-based visibility computation for natural illumination of volume data sets
T Ritschel
Eurographics Short Papers
[PDF]

Interactive Illumination with Coherent Shadow Maps.
T Ritschel, T Grosch, J Kautz, S Müller
Rendering Techniques
[PDF]

2006


Multiresolution GPU Mesh Painting.
T Ritschel, M Botsch, S Müller
Eurographics (Short Presentations)
[PDF]

On-line estimation of diffuse materials
T Ritschel, T Grosch
Dritter Workshop Virtuelle und Erweiterte Realitaet der GI-Fachgruppe VR/AR

2005


The Eduventure--A new approach of digital game based learning combining virtual and mobile augmented reality games episodes
P Ferdinand, S Müller, T Ritschel, U Wechselberger
Pre-Conference Workshop Game based Learning of DeLFI 2005 and GMW 2005 Conference, Rostock

Teaching

My office hours are Monday, 10:00--11:00. Contact me via email first.

1T 2021 Lecture Mitra/Ritschel Deep Learning for Visual Computing (COMP0169)
Lecture Ritschel Computer Graphics (COMP0027)
1T 2020 Lecture Mitra/Ritschel Deep Learning for Visual Computing (COMP0169)
Lecture Ritschel Computer Graphics (COMP0027)
1T 2019 Lecture Ritschel Computer Graphics (COMP0027)
1T 2018 Lecture Ritschel Computer Graphics (COMP3080/GV10)
1T 2018 Lecture Ritschel/Steed Virtual Environments (COMPM076/GV07)
1T 2017 Lecture Ritschel/Steed Computer Graphics (COMP3080/GV10)
1T/2T 2017 Project Ritschel Individual Project (COMPGV99)
1T 2016 Lecture Ritschel/Steed Computer Graphics (COMP3080/GV10)
1T 2015 Lecture Steed/Ritschel Computer Graphics (COMP3080/GV10)
SS 2015 Lecture Ritschel Interactive Graphics using OpenGL
Lecture Slusallek/Myszkowski Realistic Image Synthesis, (13th and 16th of July)
WS 2014 Lecture Myszkowski/Ritschel/Didyk Perception for Computer Graphics
Praktikum Ritschel 3D-Rekonstruktion "Alte Schmelz", St. Ingbert
SS 2014 Seminar Ritschel Interactive Global Illumination
WS 2013 Seminar Ritschel Creative Computing
Lecture Vangorp/Myszkowski/Ritschel Perception for Computer Graphics
Praktikum Ritschel 3D-Rekonstruktion "Alte Schmelz", St. Ingbert ("aktueller bericht", SR Fernsehen, 15.04.2014.)
WS 2012 Seminar Ritschel/Reinhard/Myszkowski Applied Perception
Seminar Ihrke/Ritschel/Fritz Parallel Visual Computing
SS 2012 Seminar Thormählen/Ritschel Visual Computing Techniques for Efficient Content Production (Saarland University)
Lecture Slusallek/Myszkowski Realistic Image Synthesis, (11th and 16th of July)


Recent Positions


Education


Previous Group Members

Daniel ScherzerPost doc (Now Hochschule Ravensburg-Weingarten)
Carlo InnamoratiPhD student (Inverse Graphics via Simulation-driven Learning)
Thomas LeimkühlerPhD student (Artificial Intelligence for Novel-view Synthesis | Now at INRIA Sophia-Antipolis)
Oliver NalbachPhD student (Smart Screen Space)
Chuong NguyenPhD student (Advanced Perceptual Design and Depiction of Materials | Now Apple Inc.)
Oskar ElekPhD student (Efficient Physically-based Rendering | Now Charles U Prague)
Bernhard ReinertPhD student (Interactive, Example-driven Synthesis and Manipulation of Visual Media | Now Google)
Konstantinos RematasVisiting PhD student
Pablo Bauszat,Visiting PhD student
Jiri VorbaVisiting PhD student
Ondrej Karlik,Visiting PhD student
Łukasz DąbałaVisiting Phd student
Sukumar SrikanthMaster Student
Andreas ZinsBachelor student
Phlipp HenzlerIntern
Adam LaskowksiIntern
Jozef HladkyIntern
Fabian RoschyHiWi
Marc HabermannHiWi, Bachelor student
Tobias BertelHiWi, Master student
Elena ArabadzhiyskaHiWi, Master student
Dushyant MehtaHiWi
Adam HankaMaster student
Fanyu YeHiWi
Benjamin SommerHiWi