Derek
Nowrouzezahrai

Full Professor
CIFAR AI Chair
Mila-Ubisoft AI Chair
Former NSERC/Ubisoft Industrial Research Chair
Former Canada Research Chair


Electrical & Computer Engineering
Desautels Management (Associate)
Computer Science (Associate)


Québec Artificial
Intelligence Institute


McConnell Eng. Building
3480 University Street
Montreal, Quebec
Canada H3A 0E9



Research Themes

Simulating Physics for Machine Learning

How can physics-based models & solvers boost machine learning architectures (& vice-versa)?

Monte Carlo, Density Estimation & MCMC

How do we efficiently solve multi-dimensional integrals for realistic image and sound synthesis?

Editing Physically-based Light Transport

Can we devise intuitive controls to edit physically-based lighting in synthetic images?

Model Reduction for Dynamics & Lighting

Can reduced models capture complex dynamics?

Editing Complex Fluid Simulations

How do digital artists author turbulent fluid simulations? Can we design tools to help them?

Manufacturing Passive Optics & Probes

Can combining computation with 3D fabrication allow us to warp & capture light in the real world?
Visually browse my research highlights, by theme, below:
  • Beam density estimation and many-light methods.
  • Path connection strategies in light transport.
  • Artist tools for digital content creation.
  • Using fabrication to warp light in the real world.
  • Interactive shadows and global illumination.
  • Capturing geometry and reflectance in the wild.
  • Geometry analysis for artistic line drawings.
Research Group & Teaching
I'm not currently recruiting & will not reply to requests for supervision.
Interested in joining my lab? Please read these instructions.
  • Post-Doc
  • Ph.D.
  • M.Sc.
  • B.Sc. or Intern
  • Graduated
    [Click Here for a Complete List of Graduates...]

    Courses

    ECSE 343 Numerical Methods for Engineers Winter 2022
    ECSE 446 Realistic Image Synthesis Fall 2022 [F2018, F2019]
    ECSE 546 Advanced Image Synthesis Fall 2022 [F2018, F2019]
    ECSE 443 Numerical Methods Winter 2020
    ECSE 222 Digital Logic Fall 2018 [W2017, F2017]
    ECSE 689 Realistic Image Synthesis Fall 2017 [2016, 2017]
    IFT6095 Real-time Rendering Winter 2016 [2013-2015]
    IFT6350 Advanced Computer Graphics Winter 2015
    IFT3355 Computer Graphics Winter 2016 [2012-2015]
    IFT2740 Tools for 3D Graphics Fall 2015 [2014]
    IFT3730 3D Computer Graphics Winter 2013 [2013]
    IFT3150 Senior Project Winter 2016 [2013-2015]
    IFT4055 Honors Senior Project Winter 2015 [2013-2014]
    IFT3151 Senior Internship Project Winter 2015 [2013-2014]
    Full Publication List hover over images to zoom-in — auto-generated by bibbase.org
      2023 (13)
    Learning neural implicit representations with surface signal parameterizations. Guan, Y.; Chubarau, A.; Rao, R.; and Nowrouzezahrai, D. Comput. Graph., 114: 257–264. 2023.
    Learning neural implicit representations with surface signal parameterizations [link]Paper   doi   link   bibtex  
    Differentiable visual computing for inverse problems and machine learning. Spielberg, A.; Zhong, F.; Rematas, K.; Jatavallabhula, K. M.; Öztireli, C.; Li, T.; and Nowrouzezahrai, D. Nat. Mac. Intell., 5(11): 1189–1199. 2023.
    Differentiable visual computing for inverse problems and machine learning [link]Paper   doi   link   bibtex  
    Visual question answering from another perspective: CLEVR mental rotation tests. Beckham, C.; Weiss, M.; Golemo, F.; Honari, S.; Nowrouzezahrai, D.; and Pal, C. Pattern Recognit., 136: 109209. 2023.
    Visual question answering from another perspective: CLEVR mental rotation tests [link]Paper   doi   link   bibtex  
    MeshDiffusion: Score-based Generative 3D Mesh Modeling. Liu, Z.; Feng, Y.; Black, M. J.; Nowrouzezahrai, D.; Paull, L.; and Liu, W. In The Eleventh International Conference on Learning Representations, ICLR 2023, Kigali, Rwanda, May 1-5, 2023, 2023. OpenReview.net
    MeshDiffusion: Score-based Generative 3D Mesh Modeling [link]Paper   link   bibtex  
    Parameter-space ReSTIR for Differentiable and Inverse Rendering. Chang, W.; Sivaram, V.; Nowrouzezahrai, D.; Hachisuka, T.; Ramamoorthi, R.; and Li, T. In Brunvand, E.; Sheffer, A.; and Wimmer, M., editor(s), ACM SIGGRAPH 2023 Conference Proceedings, SIGGRAPH 2023, Los Angeles, CA, USA, August 6-10, 2023, pages 18:1–18:10, 2023. ACM
    Parameter-space ReSTIR for Differentiable and Inverse Rendering [link]Paper   doi   link   bibtex  
    Efficient Graphics Representation with Differentiable Indirection. Datta, S.; Marshall, C. S.; Dong, Z.; Li, Z.; and Nowrouzezahrai, D. In Kim, J.; Lin, M. C.; and Bickel, B., editor(s), SIGGRAPH Asia 2023 Conference Papers, SA 2023, Sydney, NSW, Australia, December 12-15, 2023, pages 104:1–104:10, 2023. ACM
    Efficient Graphics Representation with Differentiable Indirection [link]Paper   doi   link   bibtex  
    Neural Shadow Mapping. Datta, S.; Nowrouzezahrai, D.; Schied, C.; and Dong, Z. CoRR, abs/2301.05262. 2023.
    Neural Shadow Mapping [link]Paper   doi   link   bibtex  
    MeshDiffusion: Score-based Generative 3D Mesh Modeling. Liu, Z.; Feng, Y.; Black, M. J.; Nowrouzezahrai, D.; Paull, L.; and Liu, W. CoRR, abs/2303.08133. 2023.
    MeshDiffusion: Score-based Generative 3D Mesh Modeling [link]Paper   doi   link   bibtex  
    A Model-Based Solution to the Offline Multi-Agent Reinforcement Learning Coordination Problem. Barde, P.; Foerster, J.; Nowrouzezahrai, D.; and Zhang, A. CoRR, abs/2305.17198. 2023.
    A Model-Based Solution to the Offline Multi-Agent Reinforcement Learning Coordination Problem [link]Paper   doi   link   bibtex  
    Efficient Graphics Representation with Differentiable Indirection. Datta, S.; Marshall, C. S.; Dong, Z.; Li, Z.; and Nowrouzezahrai, D. CoRR, abs/2309.08387. 2023.
    Efficient Graphics Representation with Differentiable Indirection [link]Paper   doi   link   bibtex  
    STAMP: Differentiable Task and Motion Planning via Stein Variational Gradient Descent. Lee, Y.; Huang, P.; Jatavallabhula, K. M.; Li, A. Z.; Damken, F.; Heiden, E.; Smith, K.; Nowrouzezahrai, D.; Ramos, F.; and Shkurti, F. CoRR, abs/2310.01775. 2023.
    STAMP: Differentiable Task and Motion Planning via Stein Variational Gradient Descent [link]Paper   doi   link   bibtex  
    Minimax Exploiter: A Data Efficient Approach for Competitive Self-Play. Bairamian, D.; Marcotte, P.; Romoff, J.; Robert, G.; and Nowrouzezahrai, D. CoRR, abs/2311.17190. 2023.
    Minimax Exploiter: A Data Efficient Approach for Competitive Self-Play [link]Paper   doi   link   bibtex  
    Differentiable Visual Computing for Inverse Problems and Machine Learning. Spielberg, A.; Zhong, F.; Rematas, K.; Jatavallabhula, K. M.; Öztireli, C.; Li, T.; and Nowrouzezahrai, D. CoRR, abs/2312.04574. 2023.
    Differentiable Visual Computing for Inverse Problems and Machine Learning [link]Paper   doi   link   bibtex  
      2022 (19)
    Dynamic Diffuse Global Illumination Resampling. Majercik, Z.; Müller, T.; Keller, A.; Nowrouzezahrai, D.; and McGuire, M. Comput. Graph. Forum, 41(1): 158–171. 2022.
    Dynamic Diffuse Global Illumination Resampling [link]Paper   doi   link   bibtex  
    Single-pass stratified importance resampling. Ciklabakkal, E.; Gruson, A.; Georgiev, I.; Nowrouzezahrai, D.; and Hachisuka, T. Comput. Graph. Forum, 41(4): 41–49. 2022.
    Single-pass stratified importance resampling [link]Paper   doi   link   bibtex  
    Efficient Differentiation of Pixel Reconstruction Filters for Path-Space Differentiable Rendering. Yu, Z.; Zhang, C.; Nowrouzezahrai, D.; Dong, Z.; and Zhao, S. ACM Trans. Graph., 41(6): 191:1–191:16. 2022.
    Efficient Differentiation of Pixel Reconstruction Filters for Path-Space Differentiable Rendering [link]Paper   doi   link   bibtex  
    A Monte Carlo Method for Fluid Simulation. Rioux-Lavoie, D.; Sugimoto, R.; Özdemir, T.; Shimada, N. H.; Batty, C.; Nowrouzezahrai, D.; and Hachisuka, T. ACM Trans. Graph., 41(6): 240:1–240:16. 2022.
    A Monte Carlo Method for Fluid Simulation [link]Paper   doi   link   bibtex  
    OSM: An Open Set Matting Framework with OOD Detection and Few-Shot Learning. Zhou, Y.; Laradji, I. H.; Zhou, L.; and Nowrouzezahrai, D. In 33rd British Machine Vision Conference 2022, BMVC 2022, London, UK, November 21-24, 2022, pages 92, 2022. BMVA Press
    OSM: An Open Set Matting Framework with OOD Detection and Few-Shot Learning [link]Paper   link   bibtex  
    Overcoming challenges in leveraging GANs for few-shot data augmentation. Beckham, C.; Laradji, I. H.; Rodríguez, P.; Vázquez, D.; Nowrouzezahrai, D.; and Pal, C. In Chandar, S.; Pascanu, R.; and Precup, D., editor(s), Conference on Lifelong Learning Agents, CoLLAs 2022, 22-24 August 2022, McGill University, Montréal, Québec, Canada, volume 199, of Proceedings of Machine Learning Research, pages 255–280, 2022. PMLR
    Overcoming challenges in leveraging GANs for few-shot data augmentation [link]Paper   link   bibtex  
    Kubric: A scalable dataset generator. Greff, K.; Belletti, F.; Beyer, L.; Doersch, C.; Du, Y.; Duckworth, D.; Fleet, D. J.; Gnanapragasam, D.; Golemo, F.; Herrmann, C.; Kipf, T.; Kundu, A.; Lagun, D.; Laradji, I. H.; Liu, H. D.; Meyer, H.; Miao, Y.; Nowrouzezahrai, D.; Öztireli, A. C.; Pot, E.; Radwan, N.; Rebain, D.; Sabour, S.; Sajjadi, M. S. M.; Sela, M.; Sitzmann, V.; Stone, A.; Sun, D.; Vora, S.; Wang, Z.; Wu, T.; Yi, K. M.; Zhong, F.; and Tagliasacchi, A. In IEEE/CVF Conference on Computer Vision and Pattern Recognition, CVPR 2022, New Orleans, LA, USA, June 18-24, 2022, pages 3739–3751, 2022. IEEE
    Kubric: A scalable dataset generator [link]Paper   doi   link   bibtex  
    Learning to Guide and to be Guided in the Architect-Builder Problem. Barde, P.; Karch, T.; Nowrouzezahrai, D.; Moulin-Frier, C.; Pal, C.; and Oudeyer, P. In The Tenth International Conference on Learning Representations, ICLR 2022, Virtual Event, April 25-29, 2022, 2022. OpenReview.net
    Learning to Guide and to be Guided in the Architect-Builder Problem [link]Paper   link   bibtex  
    Attention-based Neural Cellular Automata. Tesfaldet, M.; Nowrouzezahrai, D.; and Pal, C. In Koyejo, S.; Mohamed, S.; Agarwal, A.; Belgrave, D.; Cho, K.; and Oh, A., editor(s), Advances in Neural Information Processing Systems 35: Annual Conference on Neural Information Processing Systems 2022, NeurIPS 2022, New Orleans, LA, USA, November 28 - December 9, 2022, 2022.
    Attention-based Neural Cellular Automata [link]Paper   link   bibtex  
    Neural Shadow Mapping. Datta, S.; Nowrouzezahrai, D.; Schied, C.; and Dong, Z. In Nandigjav, M.; Mitra, N. J.; and Hertzmann, A., editor(s), SIGGRAPH '22: Special Interest Group on Computer Graphics and Interactive Techniques Conference, Vancouver, BC, Canada, August 7 - 11, 2022, pages 8:1–8:9, 2022. ACM
    Neural Shadow Mapping [link]Paper   doi   link   bibtex  
    Compact Poisson Filters for Fast Fluid Simulation. Rabbani, A. H.; Guertin, J.; Rioux-Lavoie, D.; Schoentgen, A.; Tong, K.; Sirois-Vigneux, A.; and Nowrouzezahrai, D. In Nandigjav, M.; Mitra, N. J.; and Hertzmann, A., editor(s), SIGGRAPH '22: Special Interest Group on Computer Graphics and Interactive Techniques Conference, Vancouver, BC, Canada, August 7 - 11, 2022, pages 35:1–35:9, 2022. ACM
    Compact Poisson Filters for Fast Fluid Simulation [link]Paper   doi   link   bibtex  
    Kubric: A scalable dataset generator. Greff, K.; Belletti, F.; Beyer, L.; Doersch, C.; Du, Y.; Duckworth, D.; Fleet, D. J.; Gnanapragasam, D.; Golemo, F.; Herrmann, C.; Kipf, T.; Kundu, A.; Lagun, D.; Laradji, I. H.; Liu, H. D.; Meyer, H.; Miao, Y.; Nowrouzezahrai, D.; Öztireli, C.; Pot, E.; Radwan, N.; Rebain, D.; Sabour, S.; Sajjadi, M. S. M.; Sela, M.; Sitzmann, V.; Stone, A.; Sun, D.; Vora, S.; Wang, Z.; Wu, T.; Yi, K. M.; Zhong, F.; and Tagliasacchi, A. CoRR, abs/2203.03570. 2022.
    Kubric: A scalable dataset generator [link]Paper   doi   link   bibtex  
    Challenges in leveraging GANs for few-shot data augmentation. Beckham, C.; Laradji, I. H.; Rodríguez, P.; Vázquez, D.; Nowrouzezahrai, D.; and Pal, C. J. CoRR, abs/2203.16662. 2022.
    Challenges in leveraging GANs for few-shot data augmentation [link]Paper   doi   link   bibtex  
    Latent Variable Models for Bayesian Causal Discovery. Subramanian, J.; Annadani, Y.; Sheth, I.; Bauer, S.; Nowrouzezahrai, D.; and Kahou, S. E. CoRR, abs/2207.05723. 2022.
    Latent Variable Models for Bayesian Causal Discovery [link]Paper   doi   link   bibtex  
    Uncertainty-Driven Active Vision for Implicit Scene Reconstruction. Smith, E. J.; Drozdzal, M.; Nowrouzezahrai, D.; Meger, D.; and Romero-Soriano, A. CoRR, abs/2210.00978. 2022.
    Uncertainty-Driven Active Vision for Implicit Scene Reconstruction [link]Paper   doi   link   bibtex  
    Learning Latent Structural Causal Models. Subramanian, J.; Annadani, Y.; Sheth, I.; Ke, N. R.; Deleu, T.; Bauer, S.; Nowrouzezahrai, D.; and Kahou, S. E. CoRR, abs/2210.13583. 2022.
    Learning Latent Structural Causal Models [link]Paper   doi   link   bibtex  
    Learning Neural Implicit Representations with Surface Signal Parameterizations. Guan, Y.; Chubarau, A.; Rao, R.; and Nowrouzezahrai, D. CoRR, abs/2211.00519. 2022.
    Learning Neural Implicit Representations with Surface Signal Parameterizations [link]Paper   doi   link   bibtex  
    Attention-based Neural Cellular Automata. Tesfaldet, M.; Nowrouzezahrai, D.; and Pal, C. CoRR, abs/2211.01233. 2022.
    Attention-based Neural Cellular Automata [link]Paper   doi   link   bibtex  
    Visual Question Answering From Another Perspective: CLEVR Mental Rotation Tests. Beckham, C.; Weiss, M.; Golemo, F.; Honari, S.; Nowrouzezahrai, D.; and Pal, C. CoRR, abs/2212.01639. 2022.
    Visual Question Answering From Another Perspective: CLEVR Mental Rotation Tests [link]Paper   doi   link   bibtex  
      2021 (15)
    Differentiable Compound Optics and Processing Pipeline Optimization for End-to-end Camera Design. Tseng, E.; Mosleh, A.; Mannan, F.; Arnaud, K. S.; Sharma, A.; Peng, Y.; Braun, A.; Nowrouzezahrai, D.; Lalonde, J.; and Heide, F. ACM Trans. Graph., 40(2): 18:1–18:19. 2021.
    Differentiable Compound Optics and Processing Pipeline Optimization for End-to-end Camera Design [link]Paper   doi   link   bibtex  
    Neural Geometric Level of Detail: Real-Time Rendering With Implicit 3D Shapes. Takikawa, T.; Litalien, J.; Yin, K.; Kreis, K.; Loop, C. T.; Nowrouzezahrai, D.; Jacobson, A.; McGuire, M.; and Fidler, S. In IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2021, virtual, June 19-25, 2021, pages 11358–11367, 2021. Computer Vision Foundation / IEEE
    Neural Geometric Level of Detail: Real-Time Rendering With Implicit 3D Shapes [link]Paper   doi   link   bibtex  
    SSR: Semi-supervised Soft Rasterizer for single-view 2D to 3D Reconstruction. Laradji, I. H.; Rodríguez, P.; Vázquez, D.; and Nowrouzezahrai, D. In IEEE/CVF International Conference on Computer Vision Workshops, ICCVW 2021, Montreal, BC, Canada, October 11-17, 2021, pages 1427–1436, 2021. IEEE
    SSR: Semi-supervised Soft Rasterizer for single-view 2D to 3D Reconstruction [link]Paper   doi   link   bibtex  
    Regularized Inverse Reinforcement Learning. Jeon, W.; Su, C.; Barde, P.; Doan, T.; Nowrouzezahrai, D.; and Pineau, J. In 9th International Conference on Learning Representations, ICLR 2021, Virtual Event, Austria, May 3-7, 2021, 2021. OpenReview.net
    Regularized Inverse Reinforcement Learning [link]Paper   link   bibtex  
    gradSim: Differentiable simulation for system identification and visuomotor control. Murthy, J. K.; Macklin, M.; Golemo, F.; Voleti, V.; Petrini, L.; Weiss, M.; Considine, B.; Parent-Lévesque, J.; Xie, K.; Erleben, K.; Paull, L.; Shkurti, F.; Nowrouzezahrai, D.; and Fidler, S. In 9th International Conference on Learning Representations, ICLR 2021, Virtual Event, Austria, May 3-7, 2021, 2021. OpenReview.net
    gradSim: Differentiable simulation for system identification and visuomotor control [link]Paper   link   bibtex  
    Practical Product Sampling for Single Scattering in Media. Villeneuve, K.; Gruson, A.; Georgiev, I.; and Nowrouzezahrai, D. In Bousseau, A.; and McGuire, M., editor(s), 32nd Eurographics Symposium on Rendering, EGSR 2021 - Digital Library Only Track, Saarbrücken, Germany, June 29 - July 2, 2021, pages 55–60, 2021. Eurographics Association
    Practical Product Sampling for Single Scattering in Media [link]Paper   doi   link   bibtex  
    Dynamic Diffuse Global Illumination Resampling. Majercik, Z.; Müller, T.; Keller, A.; Nowrouzezahrai, D.; and McGuire, M. In SIGGRAPH 2021: Special Interest Group on Computer Graphics and Interactive Techniques Conference, Talks, Virtual Event, USA, August 9-13, 2021, pages 24:1–24:2, 2021. ACM
    Dynamic Diffuse Global Illumination Resampling [link]Paper   doi   link   bibtex  
    A Weakly Supervised Consistency-based Learning Method for COVID-19 Segmentation in CT Images. Laradji, I. H.; Rodríguez, P.; Mañas, O.; Lensink, K.; Law, M.; Kurzman, L.; Parker, W.; Vázquez, D.; and Nowrouzezahrai, D. In IEEE Winter Conference on Applications of Computer Vision, WACV 2021, Waikoloa, HI, USA, January 3-8, 2021, pages 2452–2461, 2021. IEEE
    A Weakly Supervised Consistency-based Learning Method for COVID-19 Segmentation in CT Images [link]Paper   doi   link   bibtex  
    Neural Geometric Level of Detail: Real-time Rendering with Implicit 3D Shapes. Takikawa, T.; Litalien, J.; Yin, K.; Kreis, K.; Loop, C. T.; Nowrouzezahrai, D.; Jacobson, A.; McGuire, M.; and Fidler, S. CoRR, abs/2101.10994. 2021.
    Neural Geometric Level of Detail: Real-time Rendering with Implicit 3D Shapes [link]Paper   link   bibtex  
    Robust Motion In-betweening. Harvey, F. G.; Yurick, M.; Nowrouzezahrai, D.; and Pal, C. J. CoRR, abs/2102.04942. 2021.
    Robust Motion In-betweening [link]Paper   link   bibtex  
    Countering Racial Bias in Computer Graphics Research. Kim, T.; Rushmeier, H. E.; Dorsey, J.; Nowrouzezahrai, D.; Syed, R.; Jarosz, W.; and Darke, A. M. CoRR, abs/2103.15163. 2021.
    Countering Racial Bias in Computer Graphics Research [link]Paper   link   bibtex  
    gradSim: Differentiable simulation for system identification and visuomotor control. Jatavallabhula, K. M.; Macklin, M.; Golemo, F.; Voleti, V.; Petrini, L.; Weiss, M.; Considine, B.; Parent-Lévesque, J.; Xie, K.; Erleben, K.; Paull, L.; Shkurti, F.; Nowrouzezahrai, D.; and Fidler, S. CoRR, abs/2104.02646. 2021.
    gradSim: Differentiable simulation for system identification and visuomotor control [link]Paper   link   bibtex  
    Dynamic Diffuse Global Illumination Resampling. Majercik, Z.; Müller, T.; Keller, A.; Nowrouzezahrai, D.; and McGuire, M. CoRR, abs/2108.05263. 2021.
    Dynamic Diffuse Global Illumination Resampling [link]Paper   link   bibtex  
    SSR: Semi-supervised Soft Rasterizer for single-view 2D to 3D Reconstruction. Laradji, I. H.; Rodríguez, P.; Vázquez, D.; and Nowrouzezahrai, D. CoRR, abs/2108.09593. 2021.
    SSR: Semi-supervised Soft Rasterizer for single-view 2D to 3D Reconstruction [link]Paper   link   bibtex  
    Learning to Guide and to Be Guided in the Architect-Builder Problem. Barde, P.; Karch, T.; Nowrouzezahrai, D.; Moulin-Frier, C.; Pal, C. J.; and Oudeyer, P. CoRR, abs/2112.07342. 2021.
    Learning to Guide and to Be Guided in the Architect-Builder Problem [link]Paper   link   bibtex  
      2020 (20)
    Local Bases for Model-reduced Smoke Simulations. Mercier, O.; and Nowrouzezahrai, D. Comput. Graph. Forum, 39(2): 9–22. 2020.
    Local Bases for Model-reduced Smoke Simulations [link]Paper   doi   link   bibtex  
    An Efficient Transport Estimator for Complex Layered Materials. Gamboa, L. E.; Gruson, A.; and Nowrouzezahrai, D. Comput. Graph. Forum, 39(2): 363–371. 2020. Best Paper Honourable Mention Award!
    An Efficient Transport Estimator for Complex Layered Materials [link]Paper   doi   link   bibtex  
    Practical Product Path Guiding Using Linearly Transformed Cosines. Diolatzis, S.; Gruson, A.; Jakob, W.; Nowrouzezahrai, D.; and Drettakis, G. Comput. Graph. Forum, 39(4): 23–33. 2020.
    Practical Product Path Guiding Using Linearly Transformed Cosines [link]Paper   doi   link   bibtex  
    Pix2Shape: Towards Unsupervised Learning of 3D Scenes from Images Using a View-Based Representation. Rajeswar, S.; Mannan, F.; Golemo, F.; Parent-Lévesque, J.; Vázquez, D.; Nowrouzezahrai, D.; and Courville, A. C. Int. J. Comput. Vis., 128(10): 2478–2493. 2020.
    Pix2Shape: Towards Unsupervised Learning of 3D Scenes from Images Using a View-Based Representation [link]Paper   doi   link   bibtex     abstract
    Delayed Rejection Metropolis Light Transport. Rioux-Lavoie, D.; Litalien, J.; Gruson, A.; Hachisuka, T.; and Nowrouzezahrai, D. ACM Trans. Graph., 39(3): 26:1–26:14. 2020.
    Delayed Rejection Metropolis Light Transport [link]Paper   doi   link   bibtex  
    Directional sources and listeners in interactive sound propagation using reciprocal wave field coding. Chaitanya, C. R. A.; Raghuvanshi, N.; Godin, K. W.; Zhang, Z.; Nowrouzezahrai, D.; and Snyder, J. M. ACM Trans. Graph., 39(4): 44. 2020.
    Directional sources and listeners in interactive sound propagation using reciprocal wave field coding [link]Paper   doi   link   bibtex  
    Robust motion in-betweening. Harvey, F. G.; Yurick, M.; Nowrouzezahrai, D.; and Pal, C. J. ACM Trans. Graph., 39(4): 60. 2020.
    Robust motion in-betweening [link]Paper   doi   link   bibtex  
    VoronoiNet : General Functional Approximators with Local Support. Williams, F.; Parent-Lévesque, J.; Nowrouzezahrai, D.; Panozzo, D.; Yi, K. M.; and Tagliasacchi, A. In 2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition, CVPR Workshops 2020, Seattle, WA, USA, June 14-19, 2020, pages 1069–1073, 2020. Computer Vision Foundation / IEEE
    VoronoiNet : General Functional Approximators with Local Support [link]Paper   doi   link   bibtex  
    Using Speech Synthesis to Train End-To-End Spoken Language Understanding Models. Lugosch, L.; Meyer, B. H.; Nowrouzezahrai, D.; and Ravanelli, M. In 2020 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2020, Barcelona, Spain, May 4-8, 2020, pages 8499–8503, 2020. IEEE
    Using Speech Synthesis to Train End-To-End Spoken Language Understanding Models [link]Paper   doi   link   bibtex  
    Adversarial Soft Advantage Fitting: Imitation Learning without Policy Optimization. Barde, P.; Roy, J.; Jeon, W.; Pineau, J.; Pal, C.; and Nowrouzezahrai, D. In Larochelle, H.; Ranzato, M.; Hadsell, R.; Balcan, M.; and Lin, H., editor(s), Advances in Neural Information Processing Systems 33: Annual Conference on Neural Information Processing Systems 2020, NeurIPS 2020, December 6-12, 2020, virtual, 2020.
    Adversarial Soft Advantage Fitting: Imitation Learning without Policy Optimization [link]Paper   link   bibtex  
    Promoting Coordination through Policy Regularization in Multi-Agent Deep Reinforcement Learning. Roy, J.; Barde, P.; Harvey, F. G.; Nowrouzezahrai, D.; and Pal, C. In Larochelle, H.; Ranzato, M.; Hadsell, R.; Balcan, M.; and Lin, H., editor(s), Advances in Neural Information Processing Systems 33: Annual Conference on Neural Information Processing Systems 2020, NeurIPS 2020, December 6-12, 2020, virtual, 2020.
    Promoting Coordination through Policy Regularization in Multi-Agent Deep Reinforcement Learning [link]Paper   link   bibtex  
    Scalable Multi-Agent Inverse Reinforcement Learning via Actor-Attention-Critic. Jeon, W.; Barde, P.; Nowrouzezahrai, D.; and Pineau, J. CoRR, abs/2002.10525. 2020. Published in the AAAI Workshop on Reinforcement Learning in Games (AAAI RLG)
    Paper (PDF Scalable Multi-Agent Inverse Reinforcement Learning via Actor-Attention-Critic [link]Paper   link   bibtex     abstract
    Pix2Shape - Towards Unsupervised Learning of 3D Scenes from Images using a View-based Representation. Rajeswar, S.; Mannan, F.; Golemo, F.; Parent-Lévesque, J.; Vázquez, D.; Nowrouzezahrai, D.; and Courville, A. C. CoRR, abs/2003.14166. 2020.
    Pix2Shape - Towards Unsupervised Learning of 3D Scenes from Images using a View-based Representation [link]Paper   link   bibtex     abstract
    Surprisal-Triggered Conditional Computation with Neural Networks. Lugosch, L.; Nowrouzezahrai, D.; and Meyer, B. H. CoRR, abs/2006.01659. 2020.
    Surprisal-Triggered Conditional Computation with Neural Networks [link]Paper   link   bibtex  
    Adversarial Soft Advantage Fitting: Imitation Learning without Policy Optimization. Barde, P.; Roy, J.; Jeon, W.; Pineau, J.; Pal, C. J.; and Nowrouzezahrai, D. CoRR, abs/2006.13258. 2020.
    Adversarial Soft Advantage Fitting: Imitation Learning without Policy Optimization [link]Paper   link   bibtex  
    A Weakly Supervised Consistency-based Learning Method for COVID-19 Segmentation in CT Images. Laradji, I. H.; Rodríguez, P.; Mañas, O.; Lensink, K.; Law, M.; Kurzman, L.; Parker, W.; Vázquez, D.; and Nowrouzezahrai, D. CoRR, abs/2007.02180. 2020.
    A Weakly Supervised Consistency-based Learning Method for COVID-19 Segmentation in CT Images [link]Paper   link   bibtex  
    A Weakly Supervised Region-Based Active Learning Method for COVID-19 Segmentation in CT Images. Laradji, I. H.; Rodríguez, P.; Branchaud-Charron, F.; Lensink, K.; Atighehchian, P.; Parker, W.; Vázquez, D.; and Nowrouzezahrai, D. CoRR, abs/2007.07012. 2020.
    A Weakly Supervised Region-Based Active Learning Method for COVID-19 Segmentation in CT Images [link]Paper   link   bibtex  
    Overfit Neural Networks as a Compact Shape Representation. Davies, T.; Nowrouzezahrai, D.; and Jacobson, A. CoRR, abs/2009.09808. 2020.
    Overfit Neural Networks as a Compact Shape Representation [link]Paper   link   bibtex  
    Regularized Inverse Reinforcement Learning. Jeon, W.; Su, C.; Barde, P.; Doan, T.; Nowrouzezahrai, D.; and Pineau, J. CoRR, abs/2010.03691. 2020.
    Regularized Inverse Reinforcement Learning [link]Paper   link   bibtex  
    Affinity LCFCN: Learning to Segment Fish with Weak Supervision. Laradji, I. H.; Saleh, A.; Rodríguez, P.; Nowrouzezahrai, D.; Azghadi, M. R.; and Vázquez, D. CoRR, abs/2011.03149. 2020.
    Affinity LCFCN: Learning to Segment Fish with Weak Supervision [link]Paper   link   bibtex  
      2019 (17)
    A Survey on Gradient-Domain Rendering. Hua, B.; Gruson, A.; Petitjean, V.; Zwicker, M.; Nowrouzezahrai, D.; Eisemann, E.; and Hachisuka, T. Comput. Graph. Forum, 38(2): 455–472. 2019. Presented at Eurographics
    Paper (PDF A Survey on Gradient-Domain Rendering [link]Paper   doi   link   bibtex     abstract
    Scalable Virtual Ray Lights Rendering for Participating Media. Vibert, N.; Gruson, A.; Stokholm, H.; Mortensen, T.; Jarosz, W.; Hachisuka, T.; and Nowrouzezahrai, D. Comput. Graph. Forum, 38(4): 57–65. 2019.
    Paper (PDF Scalable Virtual Ray Lights Rendering for Participating Media [link]Paper   doi   link   bibtex     abstract
    Volume Path Guiding Based on Zero-Variance Random Walk Theory. Herholz, S.; Zhao, Y.; Elek, O.; Nowrouzezahrai, D.; Lensch, H. P. A.; and Krivánek, J. ACM Trans. Graph., 38(3): 25:1–25:19. 2019. Presented at SIGGRAPH
    Paper (PDF Volume Path Guiding Based on Zero-Variance Random Walk Theory [link]Paper   doi   link   bibtex     abstract
    Hyperparameter optimization in black-box image processing using differentiable proxies. Tseng, E.; Yu, F.; Yang, Y.; Mannan, F.; Arnaud, K. S.; Nowrouzezahrai, D.; Lalonde, J.; and Heide, F. ACM Trans. Graph., 38(4): 27:1–27:14. 2019.
    Paper (PDF Supplement (PDF Hyperparameter optimization in black-box image processing using differentiable proxies [link]Paper   doi   link   bibtex     abstract
    Integral formulations of volumetric transmittance. Georgiev, I.; Misso, Z.; Hachisuka, T.; Nowrouzezahrai, D.; Krivánek, J.; and Jarosz, W. ACM Trans. Graph., 38(6): 154:1–154:17. 2019.
    Paper (PDF Integral formulations of volumetric transmittance [link]Paper   doi   link   bibtex     abstract
    Non-linear sphere tracing for rendering deformed signed distance fields. Seyb, D.; Jacobson, A.; Nowrouzezahrai, D.; and Jarosz, W. ACM Trans. Graph., 38(6): 229:1–229:12. 2019.
    Paper (PDF Non-linear sphere tracing for rendering deformed signed distance fields [link]Paper   doi   link   bibtex     abstract
    Adaptive Sampling for Sound Propagation. Chaitanya, C. R. A.; Snyder, J. M.; Godin, K. W.; Nowrouzezahrai, D.; and Raghuvanshi, N. IEEE Trans. Vis. Comput. Graph., 25(5): 1846–1854. 2019. Presented at the IEEE Virtual Reality Conference
    Paper (PDF Adaptive Sampling for Sound Propagation [link]Paper   doi   link   bibtex     abstract
    Navigation Agents for the Visually Impaired: A Sidewalk Simulator and Experiments. Weiss, M.; Chamorro, S.; Girgis, R.; Luck, M.; Kahou, S. E.; Cohen, J. P.; Nowrouzezahrai, D.; Precup, D.; Golemo, F.; and Pal, C. In Kaelbling, L. P.; Kragic, D.; and Sugiura, K., editor(s), 3rd Annual Conference on Robot Learning, CoRL 2019, Osaka, Japan, October 30 - November 1, 2019, Proceedings, volume 100, of Proceedings of Machine Learning Research, pages 1314–1327, 2019. PMLR
    Navigation Agents for the Visually Impaired: A Sidewalk Simulator and Experiments [link]Paper   link   bibtex     abstract
    A Frequency Analysis and Dual Hierarchy for Efficient Rendering of Subsurface Scattering. Milaenen, D.; Belcour, L.; Guertin, J.; Hachisuka, T.; and Nowrouzezahrai, D. In Tagliasacchi, A.; and Teather, R. J., editor(s), Proceedings of the 45th Graphics Interface Conference 2019, Kingston, Ontario, Canada, May 28-31, 2019, pages 3:1–3:7, 2019. Canadian Human-Computer Communications Society / ACM Best Paper Award Winner!
    Paper (PDF A Frequency Analysis and Dual Hierarchy for Efficient Rendering of Subsurface Scattering [link]Paper   link   bibtex     abstract
    View-dependent Radiance Caching. Zhao, Y.; Belcour, L.; and Nowrouzezahrai, D. In Tagliasacchi, A.; and Teather, R. J., editor(s), Proceedings of the 45th Graphics Interface Conference 2019, Kingston, Ontario, Canada, May 28-31, 2019, pages 22:1–22:9, 2019. Canadian Human-Computer Communications Society / ACM
    Paper (PDF View-dependent Radiance Caching [link]Paper   link   bibtex     abstract
    Beyond Pixel Norm-Balls: Parametric Adversaries using an Analytically Differentiable Renderer. Liu, H. D.; Tao, M.; Li, C.; Nowrouzezahrai, D.; and Jacobson, A. In 7th International Conference on Learning Representations, ICLR 2019, New Orleans, LA, USA, May 6-9, 2019, 2019. OpenReview.net
    Paper (PDF Beyond Pixel Norm-Balls: Parametric Adversaries using an Analytically Differentiable Renderer [link]Paper   link   bibtex     abstract
    Impulse Responses for Precomputing Light from Volumetric Media. Dubouchet, R. A.; Sloan, P.; Jarosz, W.; and Nowrouzezahrai, D. In Boubekeur, T.; and Sen, P., editor(s), 30th Eurographics Symposium on Rendering, EGSR 2019 - Digital Library Only / Industry Track, Strasbourg, France, July 10-12, 2019, pages 27–37, 2019. Eurographics Association
    Paper (PDF Impulse Responses for Precomputing Light from Volumetric Media [link]Paper   doi   link   bibtex     abstract
    Subspace neural physics: fast data-driven interactive simulation. Holden, D.; Duong, B. C.; Datta, S.; and Nowrouzezahrai, D. In Lee, S.; Schroeder, C. A.; Spencer, S. N.; Batty, C.; and Huang, J., editor(s), Proceedings of the 18th annual ACM SIGGRAPH/Eurographics Symposium on Computer Animation, SCA 2019, Los Angeles, CA, USA, July 26-28, 2019, pages 6:1–6:12, 2019. ACM
    Paper (PDF Subspace neural physics: fast data-driven interactive simulation [link]Paper   doi   link   bibtex     abstract
    Fast non-uniform radiance probe placement and tracing. Wang, Y.; Khiat, S.; Kry, P. G.; and Nowrouzezahrai, D. In Spencer, S. N.; Andrews, S.; and Tatarchuk, N., editor(s), Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, I3D 2019, Montreal, QC, Canada, May 21-23, 2019, pages 5:1–5:9, 2019. ACM Best Student Presentation Award Winner!
    Paper (PDF Fast non-uniform radiance probe placement and tracing [link]Paper   doi   link   bibtex     abstract
    Promoting Coordination through Policy Regularization in Multi-Agent Reinforcement Learning. Barde, P.; Roy, J.; Harvey, F. G.; Nowrouzezahrai, D.; and Pal, C. J. CoRR, abs/1908.02269. 2019.
    Promoting Coordination through Policy Regularization in Multi-Agent Reinforcement Learning [link]Paper   link   bibtex  
    Navigation Agents for the Visually Impaired: A Sidewalk Simulator and Experiments. Weiss, M.; Chamorro, S.; Girgis, R.; Luck, M.; Kahou, S. E.; Cohen, J. P.; Nowrouzezahrai, D.; Precup, D.; Golemo, F.; and Pal, C. CoRR, abs/1910.13249. 2019.
    Navigation Agents for the Visually Impaired: A Sidewalk Simulator and Experiments [link]Paper   link   bibtex     abstract
    Robo-PlaNet: Learning to Poke in a Day. Chevalier-Boisvert, M.; Alain, G.; Golemo, F.; and Nowrouzezahrai, D. CoRR, abs/1911.03594. 2019.
    Robo-PlaNet: Learning to Poke in a Day [link]Paper   link   bibtex     abstract
      2018 (7)
    A Versatile Parameterization for Measured Material Manifolds. Soler, C.; Subr, K.; and Nowrouzezahrai, D. Comput. Graph. Forum, 37(2): 135–144. 2018.
    Paper (PDF Supplement (PDF Slides (PDF A Versatile Parameterization for Measured Material Manifolds [link]Paper   doi   link   bibtex     abstract
    Integrating Clipped Spherical Harmonics Expansions. Belcour, L.; Xie, G.; Hery, C.; Meyer, M.; Jarosz, W.; and Nowrouzezahrai, D. ACM Trans. Graph., 37(2): 19. 2018. Presented at SIGGRAPH
    Paper (PDF Integrating Clipped Spherical Harmonics Expansions [link]Paper   doi   link   bibtex     abstract
    Gradient-domain volumetric photon density estimation. Gruson, A.; Hua, B.; Vibert, N.; Nowrouzezahrai, D.; and Hachisuka, T. ACM Trans. Graph., 37(4): 82. 2018.
    Paper (PDF Gradient-domain volumetric photon density estimation [link]Paper   doi   link   bibtex     abstract
    Scalable appearance filtering for complex lighting effects. Gamboa, L. E.; Guertin, J.; and Nowrouzezahrai, D. ACM Trans. Graph., 37(6): 277. 2018.
    Paper (PDF Scalable appearance filtering for complex lighting effects [link]Paper   doi   link   bibtex     abstract
    Matrix Bidirectional Path Tracing. Chaitanya, C. R. A.; Belcour, L.; Hachisuka, T.; Premoze, S.; Pantaleoni, J.; and Nowrouzezahrai, D. In Jakob, W.; and Hachisuka, T., editor(s), 29th Eurographics Symposium on Rendering, Experimental Ideas & Implementations, EGSR 2018, EI&I Track, Karlsruhe, Germany, 1-4 July 2018, pages 23–32, 2018. Eurographics Association
    Paper (PDF Matrix Bidirectional Path Tracing [link]Paper   doi   link   bibtex     abstract
    Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, I3D 2018, Montreal, QC, Canada, May 15-18, 2018. Spencer, S. N.; McGuire, M.; and Nowrouzezahrai, D., editors. ACM. 2018. General Program Co-chair
    Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, I3D 2018, Montreal, QC, Canada, May 15-18, 2018 [link]Paper   doi   link   bibtex     abstract
    Adversarial Geometry and Lighting using a Differentiable Renderer. Liu, H. D.; Tao, M.; Li, C.; Nowrouzezahrai, D.; and Jacobson, A. CoRR, abs/1808.02651. 2018.
    Adversarial Geometry and Lighting using a Differentiable Renderer [link]Paper   link   bibtex  
      2017 (9)
    Gradient-Domain Photon Density Estimation. Hua, B.; Gruson, A.; Nowrouzezahrai, D.; and Hachisuka, T. Comput. Graph. Forum, 36(2): 31–38. 2017.
    Paper (PDF Slides (PPTx Gradient-Domain Photon Density Estimation [link]Paper   doi   link   bibtex     abstract
    Antialiasing Complex Global Illumination Effects in Path-Space. Belcour, L.; Yan, L.; Ramamoorthi, R.; and Nowrouzezahrai, D. ACM Trans. Graph., 36(1): 9:1–9:13. 2017. Presented at SIGGRAPH
    Paper (PDF Antialiasing Complex Global Illumination Effects in Path-Space [link]Paper   doi   link   bibtex     abstract
    Interactive reconstruction of Monte Carlo image sequences using a recurrent denoising autoencoder. Chaitanya, C. R. A.; Kaplanyan, A. S.; Schied, C.; Salvi, M.; Lefohn, A. E.; Nowrouzezahrai, D.; and Aila, T. ACM Trans. Graph., 36(4): 98:1–98:12. 2017.
    Paper (PDF Interactive reconstruction of Monte Carlo image sequences using a recurrent denoising autoencoder [link]Paper   doi   link   bibtex     abstract
    Fast gaze-contingent optimal decompositions for multifocal displays. Mercier, O.; Sulai, Y.; MacKenzie, K. J.; Zannoli, M.; Hillis, J.; Nowrouzezahrai, D.; and Lanman, D. ACM Trans. Graph., 36(6): 237:1–237:15. 2017.
    Paper (PDF Fast gaze-contingent optimal decompositions for multifocal displays [link]Paper   doi   link   bibtex     abstract
    Ballistic Shadow Art. Chen, X.; Andrews, S.; Nowrouzezahrai, D.; and Kry, P. G. In Eisemann, E.; and Bateman, S., editor(s), Proceedings of the 43rd Graphics Interface Conference 2017, Edmonton, Alberta, Canada, May 16-19, 2017, pages 190–198, 2017. Canadian Human-Computer Communications Society / ACM
    Paper (PDF Slides (PPTx Ballistic Shadow Art [link]Paper   doi   link   bibtex     abstract
    Frequency Based Radiance Cache for Rendering Animations. Dubouchet, R. A.; Belcour, L.; and Nowrouzezahrai, D. In Zwicker, M.; and Sander, P. V., editor(s), 28th Eurographics Symposium on Rendering, Rendering - Experimental Ideas & Implementations, EGSR 2017, EI&I Track, Helsinki, Finland, 19-21 June 2017, pages 41–53, 2017. Eurographics Association
    Paper (PDF Frequency Based Radiance Cache for Rendering Animations [link]Paper   doi   link   bibtex     abstract
    Extended Path Integral Formulation for Volumetric Transport. Hachisuka, T.; Georgiev, I.; Jarosz, W.; Krivánek, J.; and Nowrouzezahrai, D. In Zwicker, M.; and Sander, P. V., editor(s), 28th Eurographics Symposium on Rendering, Rendering - Experimental Ideas & Implementations, EGSR 2017, EI&I Track, Helsinki, Finland, 19-21 June 2017, pages 65–70, 2017. Eurographics Association
    Paper (PDF Extended Path Integral Formulation for Volumetric Transport [link]Paper   doi   link   bibtex     abstract
    Gradient-Domain Vertex Connection and Merging. Sun, W.; Sun, X.; Carr, N. A.; Nowrouzezahrai, D.; and Ramamoorthi, R. In Zwicker, M.; and Sander, P. V., editor(s), 28th Eurographics Symposium on Rendering, Rendering - Experimental Ideas & Implementations, EGSR 2017, EI&I Track, Helsinki, Finland, 19-21 June 2017, pages 83–92, 2017. Eurographics Association
    Paper (PDF Gradient-Domain Vertex Connection and Merging [link]Paper   doi   link   bibtex     abstract
    Real-time global illumination using precomputed light field probes. McGuire, M.; Mara, M.; Nowrouzezahrai, D.; and Luebke, D. In Spencer, S. N.; Bargteil, A. W.; and Mitchell, K., editor(s), Proceedings of the 21st ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, I3D 2017, San Francisco, CA, USA, March 4-5, 2017, pages 2:1–2:11, 2017. ACM Best Presentation Award Winner!
    Paper (PDF Real-time global illumination using precomputed light field probes [link]Paper   doi   link   bibtex     abstract
      2016 (4)
    State of the Art in Artistic Editing of Appearance, Lighting and Material. Schmidt, T.; Pellacini, F.; Nowrouzezahrai, D.; Jarosz, W.; and Dachsbacher, C. Comput. Graph. Forum, 35(1): 216–233. 2016.
    Paper (PDF State of the Art in Artistic Editing of Appearance, Lighting and Material [link]Paper   doi   link   bibtex     abstract
    Reduced Aggregate Scattering Operators for Path Tracing. Blumer, A.; Novák, J.; Habel, R.; Nowrouzezahrai, D.; and Jarosz, W. Comput. Graph. Forum, 35(7): 461–473. 2016.
    Paper (PDF Slides (PPTx Reduced Aggregate Scattering Operators for Path Tracing [link]Paper   doi   link   bibtex     abstract
    A Non-Parametric Factor Microfacet Model for Isotropic BRDFs. Bagher, M. M.; Snyder, J. M.; and Nowrouzezahrai, D. ACM Trans. Graph., 35(5): 159:1–159:16. 2016. To be presented at SIGGRAPH
    Paper (PDF A Non-Parametric Factor Microfacet Model for Isotropic BRDFs [link]Paper   doi   link   bibtex     abstract
    Deep g-buffers for stable global illumination approximation. Mara, M.; McGuire, M.; Nowrouzezahrai, D.; and Luebke, D. P. In Luebke, D.; and Molnar, S., editor(s), Proceedings of High Performance Graphics, HPG 2016, Dublin, Ireland, June 20-22, 2016, pages 87–98, 2016. Eurographics Association
    Paper (PDF Deep g-buffers for stable global illumination approximation [link]Paper   doi   link   bibtex     abstract
      2015 (6)
    Forward to the special section on SIBGRAPI 2014. Nowrouzezahrai, D.; and Nehab, D. Comput. Graph., 53: A3. 2015.
    Forward to the special section on SIBGRAPI 2014 [link]Paper   doi   link   bibtex  
    Efficient and Accurate Spherical Kernel Integrals Using Isotropic Decomposition. Soler, C.; Bagher, M. M.; and Nowrouzezahrai, D. ACM Trans. Graph., 34(5): 161:1–161:14. 2015. Presented at SIGGRAPH Asia
    Paper (PDF Efficient and Accurate Spherical Kernel Integrals Using Isotropic Decomposition [link]Paper   doi   link   bibtex     abstract
    Surface turbulence for particle-based liquid simulations. Mercier, O.; Beauchemin, C.; Thuerey, N.; Kim, T.; and Nowrouzezahrai, D. ACM Trans. Graph., 34(6): 202:1–202:10. 2015.
    Paper (PDF Surface turbulence for particle-based liquid simulations [link]Paper   doi   link   bibtex     abstract
    Practical Shading of Height Fields and Meshes using Spherical Harmonic Exponentiation. Giraud, A.; and Nowrouzezahrai, D. In Lehtinen, J.; and Nowrouzezahrai, D., editor(s), 26th Eurographics Symposium on Rendering, Rendering - Experimental Ideas & Implementations, EGSR 2015, EI&I Track, Darmstadt, Germany, June 23-26, 2015, pages 1–8, 2015. Eurographics Association
    Paper (PDF Slides (PDF Practical Shading of Height Fields and Meshes using Spherical Harmonic Exponentiation [link]Paper   doi   link   bibtex     abstract
    High Performance Non-linear Motion Blur. Guertin, J.; and Nowrouzezahrai, D. In Lehtinen, J.; and Nowrouzezahrai, D., editor(s), 26th Eurographics Symposium on Rendering, Rendering - Experimental Ideas & Implementations, EGSR 2015, EI&I Track, Darmstadt, Germany, June 23-26, 2015, pages 99–105, 2015. Eurographics Association
    Paper (PDF High Performance Non-linear Motion Blur [link]Paper   doi   link   bibtex     abstract
    26th Eurographics Symposium on Rendering, Rendering - Experimental Ideas & Implementations, EGSR 2015, EI&I Track, Darmstadt, Germany, June 23-26, 2015. Lehtinen, J.; and Nowrouzezahrai, D., editors. Eurographics Association. 2015. Technical Papers Co-chair
    26th Eurographics Symposium on Rendering, Rendering - Experimental Ideas & Implementations, EGSR 2015, EI&I Track, Darmstadt, Germany, June 23-26, 2015 [link]Paper   link   bibtex     abstract
      2014 (8)
    Visibility Silhouettes for Semi-Analytic Spherical Integration. Nowrouzezahrai, D.; Baran, I.; Mitchell, K.; and Jarosz, W. Comput. Graph. Forum, 33(1): 105–117. 2014.
    Visibility Silhouettes for Semi-Analytic Spherical Integration [link]Paper   doi   link   bibtex     abstract
    Error analysis of estimators that use combinations of stochastic sampling strategies for direct illumination. Subr, K.; Nowrouzezahrai, D.; Jarosz, W.; Kautz, J.; and Mitchell, K. Comput. Graph. Forum, 33(4): 93–102. 2014.
    Paper (PDF Error analysis of estimators that use combinations of stochastic sampling strategies for direct illumination [link]Paper   doi   link   bibtex     abstract
    Facial performance enhancement using dynamic shape space analysis. Bermano, A.; Bradley, D.; Beeler, T.; Zund, F.; Nowrouzezahrai, D.; Baran, I.; Sorkine-Hornung, O.; Pfister, H.; Sumner, R. W.; Bickel, B.; and Gross, M. H. ACM Trans. Graph., 33(2): 13:1–13:12. 2014.
    Paper (PDF Facial performance enhancement using dynamic shape space analysis [link]Paper   doi   link   bibtex     abstract
    Unifying points, beams, and paths in volumetric light transport simulation. Krivánek, J.; Georgiev, I.; Hachisuka, T.; Vévoda, P.; Sik, M.; Nowrouzezahrai, D.; and Jarosz, W. ACM Trans. Graph., 33(4): 103:1–103:13. 2014. Winner of the CGF Cover Image Competition!
    Paper (PDF Unifying points, beams, and paths in volumetric light transport simulation [link]Paper   doi   link   bibtex     abstract
    Hierarchical diffusion curves for accurate automatic image vectorization. Xie, G.; Sun, X.; Tong, X.; and Nowrouzezahrai, D. ACM Trans. Graph., 33(6): 230:1–230:11. 2014.
    Paper (PDF Hierarchical diffusion curves for accurate automatic image vectorization [link]Paper   doi   link   bibtex     abstract
    Filtering Non-Linear TransferFunctions on Surfaces. Heitz, E.; Nowrouzezahrai, D.; Poulin, P.; and Neyret, F. IEEE Trans. Vis. Comput. Graph., 20(7): 996–1008. 2014.
    Paper (PDF Supplement (PDF Filtering Non-Linear TransferFunctions on Surfaces [link]Paper   doi   link   bibtex     abstract
    A Fast and Stable Feature-Aware Motion Blur Filter. Guertin, J.; McGuire, M.; and Nowrouzezahrai, D. In Wald, I.; and Ragan-Kelley, J., editor(s), High-Performance Graphics 2014, Lyon, France, 2014. Proceedings, pages 51–60, 2014. Eurographics Association Our work was implemented as a Unity plug-in!
    Paper (PDF A Fast and Stable Feature-Aware Motion Blur Filter [link]Paper   doi   link   bibtex     abstract
    State of the Art in Artistic Editing of Appearance, Lighting, and Material. Schmidt, T.; Pellacini, F.; Nowrouzezahrai, D.; Jarosz, W.; and Dachsbacher, C. In Lefebvre, S.; and Spagnuolo, M., editor(s), 35th Annual Conference of the European Association for Computer Graphics, Eurographics 2014 - State of the Art Reports, Strasbourg, France, April 7-11, 2014, pages 187–198, 2014. Eurographics Association
    Paper (PDF State of the Art in Artistic Editing of Appearance, Lighting, and Material [link]Paper   doi   link   bibtex     abstract
      2013 (6)
    Image-based reconstruction and synthesis of dense foliage. Bradley, D.; Nowrouzezahrai, D.; and Beardsley, P. A. ACM Trans. Graph., 32(4): 74:1–74:10. 2013.
    Paper (PDF Image-based reconstruction and synthesis of dense foliage [link]Paper   doi   link   bibtex     abstract
    Path-space manipulation of physically-based light transport. Schmidt, T.; Novák, J.; Meng, J.; Kaplanyan, A.; Reiner, T.; Nowrouzezahrai, D.; and Dachsbacher, C. ACM Trans. Graph., 32(4): 129:1–129:11. 2013. Lightrig spin-off company
    Paper (PDF Path-space manipulation of physically-based light transport [link]Paper   doi   link   bibtex     abstract
    Joint importance sampling of low-order volumetric scattering. Georgiev, I.; Krivánek, J.; Hachisuka, T.; Nowrouzezahrai, D.; and Jarosz, W. ACM Trans. Graph., 32(6): 164:1–164:14. 2013.
    Paper (PDF Joint importance sampling of low-order volumetric scattering [link]Paper   doi   link   bibtex     abstract
    Filtering color mapped textures and surfaces. Heitz, E.; Nowrouzezahrai, D.; Poulin, P.; and Neyret, F. In Gopi, M.; Yoon, S.; Spencer, S. N.; Olano, M.; and Otaduy, M. A., editor(s), Symposium on Interactive 3D Graphics and Games, I3D '13, Orlando, FL, USA, March 22-24, 2013, pages 129–136, 2013. ACM Best Paper Award Winner!
    Paper (PDF Supplement (PDF Filtering color mapped textures and surfaces [link]Paper   doi   link   bibtex     abstract
    State of the art in photon density estimation. Hachisuka, T.; Jarosz, W.; Georgiev, I.; Kaplanyan, A.; Nowrouzezahrai, D.; and Spencer, B. In Yu, Y., editor(s), SIGGRAPH Asia 2013, Hong Kong, China, November 19-22, 2013, Courses, pages 15:1–15:562, 2013. ACM
    State of the art in photon density estimation [link]Paper   doi   link   bibtex     abstract
    The shading probe: fast appearance acquisition for mobile AR. Calian, D. A.; Mitchell, K.; Nowrouzezahrai, D.; and Kautz, J. In Chen, B.; and Sharf, A., editor(s), SIGGRAPH Asia 2013, Hong Kong, China, November 19-22, 2013, Technical Briefs, pages 20:1–20:4, 2013. ACM
    Paper (PDF The shading probe: fast appearance acquisition for mobile AR [link]Paper   doi   link   bibtex     abstract
      2012 (9)
    Manufacturing Layered Attenuators for Multiple Prescribed Shadow Images. Baran, I.; Keller, P.; Bradley, D.; Coros, S.; Jarosz, W.; Nowrouzezahrai, D.; and Gross, M. H. Comput. Graph. Forum, 31(2pt3): 603–610. 2012.
    Paper (PDF Manufacturing Layered Attenuators for Multiple Prescribed Shadow Images [link]Paper   doi   link   bibtex     abstract
    Progressive Virtual Beam Lights. Novák, J.; Nowrouzezahrai, D.; Dachsbacher, C.; and Jarosz, W. Comput. Graph. Forum, 31(4): 1407–1413. 2012. Featured on Proceedings Back Cover!
    Paper (PDF Progressive Virtual Beam Lights [link]Paper   doi   link   bibtex     abstract
    Irradiance Rigs. Yuan, H.; Nowrouzezahrai, D.; and Sloan, P. J. J. Graph. Tools, 16(1): 1–11. 2012.
    Irradiance Rigs [link]Paper   doi   link   bibtex     abstract
    Learning hatching for pen-and-ink illustration of surfaces. Kalogerakis, E.; Nowrouzezahrai, D.; Breslav, S.; and Hertzmann, A. ACM Trans. Graph., 31(1): 1:1–1:17. 2012.
    Paper (PDF Learning hatching for pen-and-ink illustration of surfaces [link]Paper   doi   link   bibtex     abstract
    Sparse zonal harmonic factorization for efficient SH rotation. Nowrouzezahrai, D.; Simari, P. D.; and Fiume, E. ACM Trans. Graph., 31(3): 23:1–23:9. 2012.
    Paper (PDF Supplement (PDF Sparse zonal harmonic factorization for efficient SH rotation [link]Paper   doi   link   bibtex     abstract
    Virtual ray lights for rendering scenes with participating media. Novák, J.; Nowrouzezahrai, D.; Dachsbacher, C.; and Jarosz, W. ACM Trans. Graph., 31(4): 60:1–60:11. 2012. Runner-up for CGF Cover Image Competition!
    Paper (PDF Virtual ray lights for rendering scenes with participating media [link]Paper   doi   link   bibtex     abstract
    A theory of monte carlo visibility sampling. Ramamoorthi, R.; Anderson, J.; Meyer, M.; and Nowrouzezahrai, D. ACM Trans. Graph., 31(5): 121:1–121:16. 2012.
    Paper (PDF A theory of monte carlo visibility sampling [link]Paper   doi   link   bibtex     abstract
    The magic lens: refractive steganography. Papas, M.; Houit, T.; Nowrouzezahrai, D.; Gross, M. H.; and Jarosz, W. ACM Trans. Graph., 31(6): 186:1–186:10. 2012. Featured on Proceedings Back Cover and Papers Fast Forward Video!
    Paper (PDF Supplement (PDF The magic lens: refractive steganography [link]Paper   doi   link   bibtex     abstract
    Delta radiance transfer. Loos, B. J.; Nowrouzezahrai, D.; Jarosz, W.; and Sloan, P. J. In Garland, M.; Wang, R.; Spencer, S. N.; Gopi, M.; and Yoon, S., editor(s), Symposium on Interactive 3D Graphics and Games, I3D '12, Costa Mesa, CA, USA, March 09 - 11, 2012, pages 191–196, 2012. ACM
    Paper (PDF Delta radiance transfer [link]Paper   doi   link   bibtex     abstract
      2011 (9)
    Exploiting Coherence and Data-driven Models for Real-time Global Illumination. Nowrouzezahrai, D. Ph.D. Thesis, University of Toronto, Canada, 2011.
    Exploiting Coherence and Data-driven Models for Real-time Global Illumination [link]Paper   link   bibtex  
    Wrap Shading. Sloan, P. J.; Nowrouzezahrai, D.; and Yuan, H. J. Graphics, GPU, & Game Tools, 15(4): 252–259. 2011.
    Paper (PDF Wrap Shading [link]Paper   doi   link   bibtex     abstract
    A comprehensive theory of volumetric radiance estimation using photon points and beams. Jarosz, W.; Nowrouzezahrai, D.; Sadeghi, I.; and Jensen, H. W. ACM Trans. Graph., 30(1): 5:1–5:19. 2011. Presented at SIGGRAPH
    Paper (PDF A comprehensive theory of volumetric radiance estimation using photon points and beams [link]Paper   doi   link   bibtex     abstract
    A programmable system for artistic volumetric lighting. Nowrouzezahrai, D.; Johnson, J. M.; Selle, A.; Lacewell, D.; Kaschalk, M.; and Jarosz, W. ACM Trans. Graph., 30(4): 29. 2011. Featured on Proceedings Back Cover and in Papers Fast Forward Video!
    Paper (PDF A programmable system for artistic volumetric lighting [link]Paper   doi   link   bibtex     abstract
    Modular Radiance Transfer. Loos, B. J.; Antani, L.; Mitchell, K.; Nowrouzezahrai, D.; Jarosz, W.; and Sloan, P. J. ACM Trans. Graph., 30(6): 178. 2011. Featured in Papers Fast Forward Video!
    Paper (PDF Modular Radiance Transfer [link]Paper   doi   link   bibtex     abstract
    Progressive photon beams. Jarosz, W.; Nowrouzezahrai, D.; Thomas, R.; Sloan, P. J.; and Zwicker, M. ACM Trans. Graph., 30(6): 181. 2011. Featured in the Proceedings Inside Cover and the Papers Fast Forward Video!
    Paper (PDF Progressive photon beams [link]Paper   doi   link   bibtex     abstract
    Perceptually-based compensation of light pollution in display systems. van Baar, J.; Poulakos, S.; Jarosz, W.; Nowrouzezahrai, D.; Tamstorf, R.; and Gross, M. H. In McDonnell, R.; Thorpe, S. J.; Spencer, S. N.; Gutierrez, D.; and Giese, M. A., editor(s), Proceedings of the 8th Symposium on Applied Perception in Graphics and Visualization, APGV 2011, Toulouse, France, August 27-28, 2011, pages 45–52, 2011. ACM
    Paper (PDF Perceptually-based compensation of light pollution in display systems [link]Paper   doi   link   bibtex     abstract
    Light factorization for mixed-frequency shadows in augmented reality. Nowrouzezahrai, D.; Geiger, S.; Mitchell, K.; Sumner, R. W.; Jarosz, W.; and Gross, M. H. In 10th IEEE International Symposium on Mixed and Augmented Reality, ISMAR 2011, Basel, Switzerland, October 26-29, 2011, pages 173–179, 2011. IEEE Computer Society
    Paper (PDF Light factorization for mixed-frequency shadows in augmented reality [link]Paper   doi   link   bibtex     abstract
    Runtime implementation of modular radiance transfer. Loos, B.; Antani, L.; Mitchell, K.; Nowrouzezahrai, D.; Jarosz, W.; and Sloan, P. J. In Elendt, M., editor(s), International Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 2011, Vancouver, BC, Canada, August 7-11, 2011, Talks Proceedings, pages 59, 2011. ACM
    Runtime implementation of modular radiance transfer [link]Paper   doi   link   bibtex     abstract
      2010 (1)
    Irradiance rigs. Yuan, H.; Nowrouzezahrai, D.; and Sloan, P. J. In Mohler, J. L., editor(s), International Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 2010, Los Angeles, California, USA, July 26-30, 2010, Talks Proceedings, 2010. ACM
    Irradiance rigs [link]Paper   doi   link   bibtex     abstract
      2009 (5)
    Extracting lines of curvature from noisy point clouds. Kalogerakis, E.; Nowrouzezahrai, D.; Simari, P. D.; and Singh, K. Comput. Aided Des., 41(4): 282–292. 2009.
    Paper (PDF Extracting lines of curvature from noisy point clouds [link]Paper   doi   link   bibtex     abstract
    Shadowing Dynamic Scenes with Arbitrary BRDFs. Nowrouzezahrai, D.; Kalogerakis, E.; and Fiume, E. Comput. Graph. Forum, 28(2): 249–258. 2009.
    Paper (PDF Shadowing Dynamic Scenes with Arbitrary BRDFs [link]Paper   doi   link   bibtex     abstract
    Fast Global Illumination on Dynamic Height Fields. Nowrouzezahrai, D.; and Snyder, J. M. Comput. Graph. Forum, 28(4): 1131–1139. 2009. Featured on Proceedings Back Cover!
    Paper (PDF Slides (PPT Supplement (PDF Fast Global Illumination on Dynamic Height Fields [link]Paper   doi   link   bibtex     abstract
    Multi-objective shape segmentation and labeling. Simari, P. D.; Nowrouzezahrai, D.; Kalogerakis, E.; and Singh, K. Comput. Graph. Forum, 28(5): 1415–1425. 2009.
    Paper (PDF Multi-objective shape segmentation and labeling [link]Paper   doi   link   bibtex     abstract
    Data-driven curvature for real-time line drawing of dynamic scenes. Kalogerakis, E.; Nowrouzezahrai, D.; Simari, P. D.; McCrae, J.; Hertzmann, A.; and Singh, K. ACM Trans. Graph., 28(1): 11:1–11:13. 2009. Presented at SIGGRAPH
    Paper (PDF Data-driven curvature for real-time line drawing of dynamic scenes [link]Paper   doi   link   bibtex     abstract
      2008 (3)
    Fast Soft Self-Shadowing on Dynamic Height Fields. Snyder, J. M.; and Nowrouzezahrai, D. Comput. Graph. Forum, 27(4): 1275–1283. 2008.
    Paper (PDF Slides (PPT Fast Soft Self-Shadowing on Dynamic Height Fields [link]Paper   doi   link   bibtex     abstract
    Video browsing by direct manipulation. Dragicevic, P.; Ramos, G. A.; Bibliowicz, J.; Nowrouzezahrai, D.; Balakrishnan, R.; and Singh, K. In Czerwinski, M.; Lund, A. M.; and Tan, D. S., editor(s), Proceedings of the 2008 Conference on Human Factors in Computing Systems, CHI 2008, 2008, Florence, Italy, April 5-10, 2008, pages 237–246, 2008. ACM
    Paper (PDF Video browsing by direct manipulation [link]Paper   doi   link   bibtex     abstract
    Shadowed Relighting of Dynamic Geometry with 1D BRDFs. Nowrouzezahrai, D.; Kalogerakis, E.; Simari, P. D.; and Fiume, E. In Mania, K.; and Reinhard, E. R., editor(s), 29th Annual Conference of the European Association for Computer Graphics, Eurographics 2008 - Short Papers, Hersonissos, Crete, Greece, April 14-18, 2008, pages 115–118, 2008. Eurographics Association
    Shadowed Relighting of Dynamic Geometry with 1D BRDFs [link]Paper   doi   link   bibtex     abstract
      2007 (4)
    Compact and efficient generation of radiance transfer for dynamically articulated characters. Nowrouzezahrai, D.; Simari, P. D.; Kalogerakis, E.; Singh, K.; and Fiume, E. In Rohl, A. L., editor(s), Proceedings of the 5th International Conference on Computer Graphics and Interactive Techniques in Australasia and Southeast Asia 2007, Perth, Western Australia, 1-4 December 2007, pages 147–154, 2007. ACM
    Paper (PDF Slides (PDF Compact and efficient generation of radiance transfer for dynamically articulated characters [link]Paper   doi   link   bibtex     abstract
    Eigentransport for efficient and accurate all-frequency relighting. Nowrouzezahrai, D.; Simari, P. D.; Kalogerakis, E.; and Fiume, E. In Rohl, A. L., editor(s), Proceedings of the 5th International Conference on Computer Graphics and Interactive Techniques in Australasia and Southeast Asia 2007, Perth, Western Australia, 1-4 December 2007, pages 163–169, 2007. ACM Winner: Best Paper Award Winner!
    Paper (PDF Slides (PDF Eigentransport for efficient and accurate all-frequency relighting [link]Paper   doi   link   bibtex     abstract
    Image-Based Proxy Accumulation for Real-Time Soft Global Illumination. Sloan, P. J.; Govindaraju, N. K.; Nowrouzezahrai, D.; and Snyder, J. M. In Alexa, M.; Gortler, S. J.; and Ju, T., editor(s), 15th Pacific Conference on Computer Graphics and Applications, PG 2007, Maui, HI, USA, October 29 - November 2, 2007, pages 97–105, 2007. IEEE Computer Society
    Paper (PDF Slides (PPTx Image-Based Proxy Accumulation for Real-Time Soft Global Illumination [link]Paper   doi   link   bibtex     abstract
    Robust statistical estimation of curvature on discretized surfaces. Kalogerakis, E.; Simari, P. D.; Nowrouzezahrai, D.; and Singh, K. In Belyaev, A. G.; and Garland, M., editor(s), Proceedings of the Fifth Eurographics Symposium on Geometry Processing, Barcelona, Spain, July 4-6, 2007, volume 257, of ACM International Conference Proceeding Series, pages 13–22, 2007. Eurographics Association
    Paper (PDF Robust statistical estimation of curvature on discretized surfaces [link]Paper   doi   link   bibtex     abstract
      2006 (2)
    A controllable, fast and stable basis for vortex based smoke simulation. Angelidis, A.; Neyret, F.; Singh, K.; and Nowrouzezahrai, D. In O'Sullivan, C.; and Pighin, F. H., editor(s), Proceedings of the 2006 ACM SIGGRAPH/Eurographics Symposium on Computer Animation, SCA 2006, Vienna, Austria, September 2-4, 2006, pages 25–32, 2006. Eurographics Association
    A controllable, fast and stable basis for vortex based smoke simulation [link]Paper   doi   link   bibtex     abstract
    GPU-accelerated ray casting of node-based implicits. Lessig, C.; Nowrouzezahrai, D.; and Singh, K. In Finnegan, J. W.; and McGrath, M., editor(s), International Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 2006, Boston, Massachusetts, USA, July 30 - August 3, 2006, Research Posters, pages 54, 2006. ACM
    GPU-accelerated ray casting of node-based implicits [link]Paper   doi   link   bibtex     abstract
      2005 (1)
    High-Performance Double-Precision Cosine Generation. Nowrouzezahrai, D.; Decker, B.; and Bishop, W. In Yang, L. T.; Arabnia, H. R.; Li, Y.; Salloum, S. N.; and Delgado-Frias, J. G., editor(s), Proceedings of the 2005 International Conference on Computer Design, CDES 2005, Las Vegas, Nevada, USA, June 27-30, 2005, pages 42–48, 2005. CSREA Press
    Paper (PDF link   bibtex     abstract
    Service & Industry Experience
    Chairing and Editorships
    Associate Editor - ACM Transactions on Graphics [current]
    Interactive 3D Graphics and Games (i3D) [2018]
    Eurographics Symposium on Rendering (EGSR) [2015]
    SIBGRAPI - Conf. on Graphics, Patterns & Images [2014]
    International Program Committees
    SIGGRAPH Asia [2012-13, 2015]
    Eurographics (EG) [2014]
    EG Symposium on Rendering (EGSR) [2011, 2013]
    High Performance Graphics (HPG) [2012]
    Pacific Graphics (PG) [2013]
    Interactive 3D Graphics & Games (I3D) [2014]

  • On Steering Committee for Graphics Interface conference.
  • Reviewing
  • Transactions on Graphics
  • SIGGRAPH
  • SIGGRAPH Asia
  • SIGGRAPH Sketches
  • Eurographics
  • EG Symposium on Rendering
  • CG Forum
  • High Performance Computing
  • Pacific Graphics
  • Interactive 3D Graphics and Games
  • Computers & Graphics
  • C&G Spec. Ed. on Natural Phenomena
  • Graphics Interface
  • Companies I've worked for
    Microsoft Microsoft Research Redmond Disney Research Zurich
    Research in Motion Amazon.com Electronic Arts Canada