Jaroslav Křivánek


Associate Professor (doc. Ing., Ph.D.)
Faculty of Mathematics and Physics
Charles University, Prague

address:
KSVI, MFF UK
Malostranské náměstí 25
118 00 Praha 1, Czech Republic

office: 302 (Malá Strana)
phone: +420 221 914 214
fax: +420 221 914 281
e-mail: jaroslav.krivanek@mff.cuni.cz
CGG@CUNI logo HiVisComp 2014 logo EGSR 2011 logo Book Cover
Computer graphics
CUNI Prague
HiVisComp 2014
 
EGSR 2011
 
get a copy from Amazon

I am an Associate Professor of Computer Science (Computer Graphics) at the Faculty of Mathematics and Physics, Charles University in Prague. In my research I focus on realistic, physically-based rendering, global illumination, light transport simulation, Monte Carlo methods, and visual perception... full CV


I'm on the editorial board of Computer Science Review and Computer Graphics Forum. Submit your paper today!

2014/04/13 ... new: Two papers that I co-authored got into SIGGRAPH. Check out the publication list.

2014/03/10 ... new: CALL FOR SUBMISSION TOPICS. Eugene d’Eon and I have been invited to organize a special computer-graphics-themed issue of TTSP, the journal on Transport Theory and Statistical Physics (which just changed its name to Journal of Computational and Theoretical Transport). TTSP was founded with a charter of promoting cross-field awareness of methods for solving transport equations, both linear and non-linear, using exact or approximate methods, Monte Carlo or deterministic. Boltzmann-like transport equations are at the foundation of many different disciplines in physics for describing the bulk behaviour of scattering neutrons, gas molecules, photons, waves, etc. This invitation is a wonderful recognition by the transport theory community that we are solving interesting transport problems in computer graphics. At this point we'd like to get a sense of the community's interest in participating. Please contact us with specific topics if you have original research submissions in those topic that you think would be appropriate for this special issue. Acceptable topics would be mostly contained in: Monte Carlo methods for global illumination or rendering participating media, variance reduction methods, analytic BSSRDF methods (basically, any problem where solving an integral equation is required to compute light transport). Please contact us if you have any questions.


Students


Teaching

Courses taught and organized in 2013/14:

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Courses taught and organized in 2012/13: Courses taught and organized in 2011/12: Courses taught and organized in 2010/11: show less...


Funding


Professional activities

Editorial board: Computer Science Review, Computer Graphics Forum (from March 2013)

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Program committee:  SIGGRAPH Asia 2012 Technical Briefs; ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games (I3D) 2012, 2013; Eurographics Symposium on Rendering 2007, 2008, 2009, 2011, 2012, 2013; Spring Conference on Computer Graphics 2011, 2012, 2013; Pacific Graphics 2010; Eurographics posters 2009; SIGGRAPH Asia 2009 Sketches; International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision (WSCG) 2012, 2013; International Conference on Computer-Aided Design and Computer Graphics (CAD/Graphics) 2013; International Conference on Computer Graphics Theory and Applications (GRAPP) 2014.

Organizing commitee: Eurographics 2007, EGSR 2011, HiVisComp 2014

Reviewing for journals: ACM Transactions on Graphics, IEEE Trans. on Pattern Analysis and Machine Intelligence, SPIE Journal of Electronic Imaging, IEEE Transactions on Visualization and Computer Graphics, Computer Graphics Forum, ACM Transactions on Applied Perception, The Visual Computer, Computers & Graphics, Computer Animation and Virtual Worlds.

Reviewing for conferences: SIGGRAPH (2006-2012), SIGGRAPH Asia (2008-2011), Eurographics (2006-2013), Eurographics Symposium on Rendering (2003-2011), Pacific Graphics (2009-2010), High Performance Graphics (2009), Symposium on Interactive 3D Graphics and Games (2009-2010), Spring conference on Computer Graphics (2005).

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Publications

2014

Jiří Vorba, Ondřej Karlík, Martin Šik, Tobias Ritschel, and Jaroslav Křivánek,
On-line Learning of Parametric Mixture Models for Light Transport Simulation
ACM Trans. Graph., SIGGRAPH 2014 (conditionally accepted for publication).

Jaroslav Křivánek, Iliyan Georgiev, Toshiya Hachisuka, Petr Vévoda, Martin Šik, Derek Nowrouzezahrai, and Wojciech Jarosz
Unifying points, beams, and paths in volumetric light transport simulation
ACM Trans. Graph., SIGGRAPH 2014 (conditionally accepted for publication).

Tomáš Davidovič, Jaroslav Křivánek, Miloš Hašan, and Philipp Slusallek
Progressive Light Transport Simulation on the GPU: Survey and Improvements
ACM Trans. Graph. (to be presented at SIGGRAPH 2014).
DOI  |  BibTeX  |  paper (5.8MB pdf)  |  paper page

Jan Beneš, Alexander Wilkie, and Jaroslav Křivánek
Procedural Modelling of Urban Road Networks
Computer Graphics Forum (accepted for publication).
DOI  |  BibTeX  |  paper (7.5MB pdf)  |  paper page

Jaroslav Křivánek, Iliyan Georgiev, Anton Kaplanyan, and Juan Canada
Path Integral Methods for Light Transport Simulation: Theory & Practice
EUROGRAPHICS 2014 Tutorial.
DOI  |  BibTeX  |  tutorial page

Jaroslav Křivánek
Combining path integral and particle density estimators in light transport simulation
Talk in the special session on Advanced light transport simulation, MCQMC2014, 2014.
talk page

2013

Iliyan Georgiev, Jaroslav Křivánek, Toshiya Hachisuka, Derek Nowrouzezahrai, and Wojciech Jarosz
Joint Importance Sampling of Low-Order Volumetric Scattering
ACM Trans. Graph. (SIGGRAPH Asia 2013), vol. 32, no. 6., 2013.
DOI  |  BibTeX  |  paper (51MB pdf)  |  paper page  |  image comparison

Iliyan Georgiev, Jaroslav Křivánek, Tomáš Davidovič, and Philipp Slusallek
Light Transport Simulation with Vertex Connection and Merging
Abstract & presentation at ICTT23 - The 23rd International Conference on Transport Theory, Santa Fe, New Mexico, 2013.
abstract (10MB pdf)  |  slides (32MB pptx)  |  project page

Ondřej Karlík, Martin Růžička, Václav Gassenbauer, Fabio Pellacini, and Jaroslav Křivánek
Toward Evaluating the Usefulness of Global Illumination for Novices in Lighting Design Tasks
IEEE Transactions on Visualization and Computer Graphics, 2013 (accepted for publication).
DOI  |  BibTeX  |  paper page

Martin Šik and Jaroslav Křivánek
Fast Random Sampling of Triangular Meshes
Pacific Graphics, Short Papers, 2013.
DOI  |  BibTeX  |  paper page

Jaroslav Křivánek, Iliyan Georgiev, Anton Kaplanyan, and Juan Canada
Recent Advances in Light Transport Simulation: Theory & Practice
SIGGRAPH 2013 Course.
DOI  |  BibTeX  |  course page

Carsten Dachsbacher, Jaroslav Křivánek, Miloš Hašan, Adam Arbree, Bruce Walter, and Jan Novák.
Scalable Realistic Rendering with Many-Light Methods
Eurographics 2013 - State of the Art Reports, Girona, Spain.
DOI  |  BibTeX  |  paper (13MB pdf)  |  paper page

2012

Jiawei Ou, Ondřej Karlík Jaroslav Křivánek, and Fabio Pellacini
Toward Evaluating Progressive Rendering Methods in Appearance Design Tasks
IEEE Computer Graphics and Applications (accepted for publication).
DOI  |  BibTeX  |  paper (3.6MB pdf)  |  paper page

Iliyan Georgiev, Jaroslav Křivánek, Tomáš Davidovič, and Philipp Slusallek
Light Transport Simulation with Vertex Connection and Merging
ACM Trans. Graph. (SIGGRAPH Asia 2012), vol. 31, no. 6., 2012.
DOI  |  BibTeX  |  paper (40MB pdf)  |  paper page

Jaroslav Křivánek, Miloš Hašan, Adam Arbree, Carsten Dachsbacher, Alexander Keller, and Bruce Walter
Optimizing Realistic Rendering with Many-Light Methods
SIGGRAPH 2012 Course.
DOI  |  BibTeX  |  course page

Iliyan Georgiev, Jaroslav Křivánek, Stefan Popov, and Philipp Slusallek
Importance Caching for Complex Illumination
Computer Graphics Forum (EUROGRAPHICS 2012), vol. 31, no. 2, 2012.
DOI  |  BibTeX  |  paper (52MB pdf)  |  slides (30MB pptx)

2011

Iliyan Georgiev, Jaroslav Křivánek, and Philipp Slusallek
Bidirectional Light Transport with Vertex Merging
SIGGRAPH Asia 2011, technical sketch.
DOI  |  BibTeX  |  paper (4MB pdf)  |  supplemental doc (6MB pdf)

Václav Gassenbauer, Jaroslav Křivánek, Kadi Bouatouch, Christian Bouville, and Mickaël Ribardiere
Improving Performance and Accuracy of Local PCA
Computer Graphics Forum (Pacific Graphics), vol. 30, no. 7, 2011.
DOI |  BibTeX |  paper (3.8MB pdf) |  slides (2MB pptx, 0.7MB pdf) |  video (1.4MB avi) |  paper page

Jiří Vorba, supervised by Jaroslav Křivánek
Bidirectional Photon Mapping
CESCG 2011 (won Best Paper Award and 2nd Best Presentation Award)
paper (2.2MB pdf)  |  slides (2.5MB pptx)

2010

Tomáš Davidovič, Jaroslav Křivánek, Miloš Hašan, Philipp Slusallek, and Kavita Bala
Combining Global and Local Virtual Lights for Detailed Glossy Illumination
ACM Trans. Graph. (SIGGRAPH Asia 2010), vol. 29, no. 6., 2010.
DOI  |  BibTeX  |  paper (9MB pdf)  |  supplementary document (6MB pdf)  |  annotated slides (13MB pptx)

Jaroslav Křivánek, James A. Ferwerda, and Kavita Bala
Effects of Global Illumination Approximations on Material Appearance
ACM Trans. Graph. (SIGGRAPH 2010), vol. 29, no. 4., 2010.
DOI  |  BibTeX  |  paper page  |  paper: 26MB pdf, 1.8MB pdf

Jaroslav Křivánek, Marcos Fajardo, Per H. Christensen, Eric Tabellion, Michael Bunnell, David Larsson, and Anton Kaplanyan
Global Illumination Across Industries
SIGGRAPH 2010 Course.
BibTeX  |  Course page

Murat Kurt, László Szirmay-Kalos, and Jaroslav Křivánek
An Anisotropic BRDF Model for Fitting and Monte Carlo Rendering
ACM SIGGRAPH Computer Graphics, vol. 44, no. 1., 2010.
DOI  |  BibTeX  |  on-line version  |  paper (PDF)  |  video (DivX, 20MB)

2009

Jaroslav Křivánek and Pascal Gautron
Practical Global Illumination with Irradiance Caching
Morgan and Claypool Publishers, March 2009.
DOI  |  BibTeX  |  book at Morgan & Claypool  |  book at Amazon

Miloš Hašan, Jaroslav Křivánek, Bruce Walter, and Kavita Bala
Virtual Spherical Lights for Many-Light Rendering of Glossy Scenes
ACM Trans. Graph. (SIGGRAPH Asia '09), vol. 28, no. 5., 2009.
DOI  |  BibTeX  |  paper  |  auxiliary images  |  VSL shader (HLSL)  |  Talk slides: PPTX, PDF, PDF with annotations

Václav Gassenbauer, Jaroslav Křivánek, and Kadi Bouatouch
Spatial Directional Radiance Caching
Computer Graphics Forum (Proc. of Eurographics Symposium on Rendering ’09), vol. 28, no. 4. 2009.
DOI  |  BibTeX  |  paper  |  video  |  slides

Peter Krištof, Bedřich Beneš, Jaroslav Křivánek, and Ondřej Šťava
Hydraulic Erosion Using Smoothed Particle Hydrodynamics
Computer Graphics Forum (Proc. of EUROGRAPHICS ’09), vol. 28, no. 2. 2009.
DOI  |  BibTeX  |  paper  |  video

Mark Colbert and Jaroslav Křivánek
Real-time dynamic shadows for image-based lighting
Chapter in ShaderX7 - Advanced Rendering Techniques. Charles River Media, 2009.
Note: This book chapter gives the implementation details for the shadow technique described in the "Filtered Importance Sampling" paper (EGSR'08)
BibTeX

Ondřej Šťava, Bedřich Beneš, and Jaroslav Křivánek
Interactive hydraulic erosion on the GPU
Chapter in ShaderX7 - Advanced Rendering Techniques. Charles River Media, 2009.
Note: this book chapter gives the implementation details for our SCA'08 paper
BibTeX  |  Unity implementation

2008

Ondřej Šťava, Bedřich Beneš, Matthew Brisbin, and Jaroslav Křivánek
Interactive Terrain Modeling Using Hydraulic Erosion
SCA '08: ACM SIGGRAPH/Eurographics Symposium on Computer Animation, 2008.
ACM DL  |  BibTeX  |  Paper  |  Video  |  Unity implementation

Jaroslav Křivánek and Mark Colbert
Real-time Shading with Filtered Importance Sampling
Computer Graphics Forum (Proc. of Eurographics Symposium on Rendering), vol. 27, no. 4. 2008.
DOI  |  BibTeX  |  Paper  |  Video  |  Slides

Juraj Obert, Jaroslav Křivánek, Fabio Pellacini, Daniel Sýkora, and Sumanta Pattanaik
iCheat: A Representation for Artistic Control of Indirect Cinematic Lighting
Computer Graphics Forum (Proc. of Eurographics Symposium on Rendering), vol. 27, no. 4. 2008.
DOI  |  BibTeX  |  Paper  |  Video 1  |  Video 2  |  Slides

Jaroslav Křivánek, Pascal Gautron, Greg Ward, Henrik Wann Jensen, Eric Tabellion, and Per H. Christensen
Practical Global Illumination With Irradiance Caching
ACM SIGGRAPH '08 Class, Los Angeles, August 2008
DOI  |  BibTeX  |  Class page

2007

Jaroslav Křivánek and Sumanta Pattanaik
Lighting
The Wiley Encyclopedia of Computer Science and Computer Engineering, December 2007
DOI  |  BibTeX

Juraj Obert, Jaroslav Křivánek, Daniel Sýkora, and Sumanta Pattanaik
Interactive Light Transport Editing for Flexible Global Illumination
ACM SIGGRAPH '07, Sketches and Applications, 2007
DOI  |  BibTeX  |  Sketch  |  Video  |  Slides

Mark Colbert and Jaroslav Křivánek
Real-time Shading with Filtered Importance Sampling
ACM SIGGRAPH '07, Sketches and Applications, 2007
DOI  |  BibTeX  |  Sketch  |  Supplement  |  Video  |  Slides  |  Project page

Jaroslav Křivánek, Pascal Gautron, Greg Ward, Okan Arikan, and Henrik Wann Jensen
Practical Global Illumination With Irradiance Caching
ACM SIGGRAPH '07 Course 16, San Diego, August 2007
DOI  |  BibTeX  |  Course page

Mark Colbert and Jaroslav Křivánek
GPU-based Importance Sampling.
Chapter 20 in GPU Gems 3. Addison-Wesley Professional. 2007.
BibTeX  |  Online version  |  Project page

2006

Jaroslav Křivánek, Kadi Bouatouch, Sumanta Pattanaik, and Jiří Žára
Making Radiance and Irradiance Caching Practical: Adaptive Caching and Neighbor Clamping
In Rendering Techniques, Proceedings Eurographics Symposium on Rendering, June 2006. 
Note: The paper is a slightly modified version of Chapter 6 of my dissertation.
BibTeX  |  Paper  |  Slides (ZIP)

Jaroslav Křivánek, Jaakko Konttinen, Sumanta Pattanaik, Kadi Bouatouch, and Jiří Žára
Fast Approximation to Spherical Harmonic Rotation
SCCG '06: Proceedings of the 22nd spring conference on Computer graphics
Note: The performance of the DirectX rotation code given in this paper was measured on the October 2004 release. DirectX has recently got a much faster spherical harmonics rotation code. Presentation of my SH-rotation siggraph sketch has the updated timings (here is the sketch itself).
BibTeX entry  |  Paper  |  Slides (PPT)

Mark Colbert, Sumanta Pattanaik, and Jaroslav Křivánek
BRDF-Shop: An artistic tool for creating physically correct bidirectional reflectance distribution functions
IEEE Computer Graphics and Applications, Vol. 26, No. 1, January/February 2006.
DOI  |  BibTeX  |  Project page  |  Paper

2005

Jaroslav Křivánek
Radiance Caching for Global Illumination Computation on Glossy Surfaces
PhD Thesis, Université de Rennes 1 and Czech Technical University in Prague, December 2005.
BibTeX  |  Thesis page  |  Thesis (PDF)  |  Defence Talk Slides (PPT)  |  References (BIB)

Jaroslav Křivánek, Jaakko Konttinen, Sumanta Pattanaik, and Kadi Bouatouch
Fast Approximation to Spherical Harmonic Rotation (Technical report)
Technical report no. 1728. IRISA, Rennes, France. July 2005.
INRIA  |  BibTeX  |  Report (PDF)  |  References (BIB)

Pascal Gautron, Jaroslav Křivánek, Kadi Bouatouch, and Sumanta Pattanaik
Radiance Cache Splatting: A GPU-Friendly Global Illumination Algorithm
In Siggraph 2005 Sketches and Applications, August 2005.
Note: This is a condensed version of our EGSR 2005 paper of the same name.
DOI  |  BibTeX  |  Project page  |  Paper  |  Slides (PPT)

Pascal Gautron, Jaroslav Křivánek, Kadi Bouatouch, and Sumanta Pattanaik
Radiance Cache Splatting: A GPU-Friendly Global Illumination Algorithm
In Proceedings of Eurographics Symposium on Rendering, p. 55-64. June 2005.
BibTeX  |  Project page  |  Paper  |  Slides  |  References (BIB)

Jaroslav Křivánek, Pascal Gautron, Kadi Bouatouch, and Sumanta Pattanaik
Improved Radiance Gradient Computation
In Spring Conference on Computer Graphics, SCCG 2005.
DOI  |  BibTeX  |  Paper  |  Slides (PPT)  |  References (BIB)

Jaroslav Křivánek,  Pascal GautronSumanta Pattanaik, and Kadi Bouatouch
Radiance Caching for Efficient Global Illumination Computation
IEEE Transactions on Visualization and Computer Graphics , Vol. 11, No. 5, September/October 2005
© 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
DOI  |  BibTeX  |  Project page  |  Paper

2004

Jaroslav Křivánek, Pascal Gautron, Sumanta Pattanaik, and Kadi Bouatouch
Radiance Caching for Efficient Global Illumination Computation (Technical report)
Technical Report no. 1623. IRISA, Rennes, France. June 2004.
INRIA  |  BibTeX  |  Project page  |  Report

Pascal Gautron , Jaroslav Křivánek, Sumanta Pattanaik, Kadi Bouatouch
A Novel Hemispherical Basis for Accurate and Efficient Rendering
In Eurographics Symposium on Rendering, EGSR 2004.
BibTeX  |  Paper  |  Slides  |  Video  |  References (BIB)

Jaroslav Křivánek, Sumanta Pattanaik, Jiří Žára
Adaptive Mesh Subdivision for Precomputed Radiance Transfer
In Spring Conference on Computer Graphics, SCCG 2004.
DOI  |  BibTeX  |  Paper  |  Slides  |  References (BIB)

Jaroslav Křivánek and Jiří Žára
Radiance Caching for Fast Global Illumination with Arbitrary BRDFs
In Workshop 2004, CTU Prague.
Paper

2003

Jaroslav Křivánek, Jiří Žára, and Bouatouch Kadi
Fast Depth-of-Field Rendering with Surface Splatting
In Computer Graphics International, CGI '03.
DOI  |  BibTeX  |  Project page  |  Paper  |  Slides  |  References (BIB)

Jaroslav Křivánek and Jiří Žára
Rendering Depth-of-Field with Surface Splatting
Technical Report, CTU Prague.
BibTeX  |  Project page  |  Report  |  References (BIB)

Jaroslav Křivánek
Representing and Rendering Surfaces With Points
Postgraduate Study Report, CTU Prague.
BibTeX  |  Project page  |  Report  |  References (BIB)

Jaroslav Křivánek
Depth-of-Field Rendering for Point-Based Objects
In Workshop 2003, CTU Prague.
BibTeX  |  Project page  |  Paper  |  Poster

2002

Jaroslav Křivánek
Perceptually Driven Point Sample Rendering
In Workshop 2002, CTU Prague.
BibTeX  |  Project page  |  Paper  |  Poster

Jaroslav Křivánek, Pavel Slavík
Virtual Reconstruction of Celtic Oppidum Zavist Near Prague
In Spring Conference on Computer Graphics, SCCG 2002, Posters.
BibTeX  |  Paper (HTML)

2001

Jaroslav Křivánek
GeForce3: Hopefully not a Flaming Expectation (in Czech)
Chip, 2001.
BibTeX  |  Article (PDF)

Jaroslav Křivánek
New Technologies as Presented by ATI (in Czech)
Chip, 2001.
BibTeX  |  Article (PDF)

Jaroslav Křivánek
Using Photon Maps and Irradiance Cache in Photorealistic Image Synthesis
Poster 2001, CTU Prague.
BibTeX  |  Paper  |  Poster

Jiří Žára, Jaroslav Křivánek
Graphics Performance Benchmarking Based on VRML Browsers
Virtual Reality International Conference, VRIC 2001.
BibTeX  |  Paper


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