I am a Software Engineer in the Google Brain Robotics team. Prior to joining Google, I was a Visiting Assistent Professor in the Geometry Lab of the Computer Science Department at Stanford University, supported by the MPC-VCC and the SAIL-Toyota Center for AI Research. I received my PhD from the University of Konstanz, Germany. My research interests are in Computer Graphics, Robotics, and Machine Learning. Specifically, I am interested in leveraging physical simulations, procedural modeling, and real-time graphics in combination with machine learning for problems in robotics and vision. This includes topics such as understanding physical interactions, cognitive planning, manipulation, learning from demonstration, Sim2Real, video prediction, and intuitive physics.


H. Wang, S. Pirk, E. Yumer, V. G. Kim, O. Senner, S. Sridhar, L. J. Guibas, Learning a Generative Model for Multi-Step Human-Object Interactions from Videos, Computer Graphics Forum (Proceeding of Eurographics), 2019
[Website], [Preprint], [Video]
V. Casser, S. Pirk, R. Mahjourian, A. Angelova, Depth Prediction without the Sensors: Leveraging Structure for Unsupervised Learning from Monocular Videos, Thirty-Third AAAI Conference on Artificial Intelligence (AAAI'19), 2019
[Website], [ArXiv]
R. Ma, A. Gadi Patil, M. Fisher, M. Li, S. Pirk, B.-S. Hua, S.-K. Yeung, X. Tong, L. Guibas, H. Zhang, Language-Driven Synthesis of 3D Scenes from Scene Databases, ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia), 2018
[Website], [Preprint], [Video]
S. Vora, R. Mahjourian, S. Pirk, A. Angelova, Future Semantic Segmentation Using 3D Structure, ECCV 3D Reconstruction meets Semantics Workshop, 2018
V. Ganapathi-Subramanian, O. Diamanti, S. Pirk, C. Tang, M. Niessner, L. J. Guibas, Parsing Geometry Using Structure-Aware Shape Templates, International Conference on 3D Vision, 2018
[Preprint], [ArXiv], [Video]
J. Kratt, T. Niese, R. Hu, H. Huang, S. Pirk, A. Sharf, D. Cohen-Or, O. Deussen, Sketching In Gestalt Space: Interactive Shape Abstraction Through Perceptual Reasoning, Computer Graphics Forum, 2018
[Website], [Preprint], [Video], [Bibtex]
S. Pirk, M. Jarząbek, T. Hädrich, D. L. Michels, W. Palubicki, Interactive Wood Combustion for Botanical Tree Models, ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia), 2017
[Website], [Preprint], [Video], [Technical Papers Trailer], [Bibtex]
S. Pirk, O. Diamanti, B. Thibert, D. Xu, L. J. Guibas, Shape-aware Spatio-temporal Descriptors for Interaction Classification, IEEE International Conference on Image Processing (ICIP), 2017
[Preprint], [Bibtex]
Y. Yoshiyasu, E. Yoshida, S. Pirk, L. J. Guibas, 3D Convolutional Neural Networks by Modal Fusion, IEEE International Conference on Image Processing (ICIP), 2017
[Preprint], [Bibtex]
S. Pirk, V. Krs, K. Hu, S. D. Rajasekaran, H. Kang, B. Benes, Y. Yoshiyasu, L. J. Guibas, Understanding and Exploiting Object Interaction Landscapes, Transactions on Graphics (TOG), 2017
[Website], [Preprint], [DOI], [ArXiv], [Video], [Bibtex]
T. Hädrich, B. Benes, O. Deussen, S. Pirk, Interactive Modeling and Authoring of Climbing Plants, Computer Graphics Forum (Proceedings of Eurographics), 2017, Best Paper Honorable Mention
[Website], [Preprint], [Video], [Media], [Bibtex]
Y. Li, S. Pirk, H. Su, C. R. Qi, L. J. Guibas, FPNN: Field Probing Neural Networks for 3D Data, Neural Information Processing Systems (NIPS), 2016
[Website], [Preprint], [ArXiv], [Bibtex]
S. Pirk, B. Benes, T. Ijiri, Y. Li, O. Deussen, B. Chen, R. Mech, Modeling Plant Life in Computer Graphics, SIGGRAPH 2016 Courses
[Website], [DOI], [Bibtex]
J. Kratt, M. Spicker, A. Guayaquil, M. Fiser, S. Pirk, O. Deussen, J. C. Hart, B. Benes, Woodification: User-Controlled Cambial Growth Modeling, Computer Graphics Forum (Proceedings of Eurographics), 2015
[Website], [Preprint], [DOI], [Video], [Bibtex]
S. Pirk, T. Niese, T. Hädrich, B. Benes, O. Deussen, Windy Trees: Computing Stress Response for Developmental Tree Models, ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia), 2014
[Website], [Preprint], [DOI], [Video], [Bibtex]
J. Kratt, F. Eisenkeil, S. Pirk, A. Sharf, O. Deussen, Non-Realistic 3D Object Stylization, International Symposium on Computational Aesthetics in Graphics, Visualization, and Imaging, 2014
[Website], [Preprint], [DOI], [Video], [Bibtex]
O. Stava, S. Pirk, J. Kratt, B. Chen, R. Mech, O. Deussen, B. Benes, Inverse Procedural Modeling of Trees, Computer Graphics Forum, 2014 and Eurographics, 2015
[Website], [Preprint], [DOI], [Video], [Bibtex]
T. Lindemeier, S. Pirk, O. Deussen, Image Stylization with a Painting Machine Using Semantic Hints, Computers and Graphics, 2013
[Preprint], [DOI], [Bibtex]
S. Pirk, M. F. Cohen, O. Deussen, M. Uyttendaele, J. Kopf, Video Enhanced Gigapixel Panoramas Siggraph Asia 2012, Technical Brief
[Website], [Preprint], [DOI], [Video], [Bibtex]
S. Pirk, T. Niese, O. Deussen, B. Neubert, Capturing and Animating the Morphogenesis of Polygonal Tree Models, ACM Transactions on Graphics (Proceedings of Siggraph Asia), 2012
[Website], [Preprint], [DOI], [Video], [Bibtex]
O. Deussen, T. Lindemeier, S. Pirk, M. Tautzenberger, Feedback-guided Stroke Placement for a Painting Machine, Computational Aesthetics in Graphics, 2012
[Website], [Preprint], [DOI], [Video], [Bibtex]
S. Pirk, O. Stava, J. Kratt, M. Abdul-Massih, B. Neubert, R. Mech, B. Benes, O. Deussen, Plastic Trees: Interactive Self-Adapting Botanical Tree Models, ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2012
[Website], [Preprint], [DOI], [Video], [Bibtex]
Y. Livny, S. Pirk, F. Yan, Z. Cheng, O. Deussen, D. Cohen-Or, B. Chen, Texture-Lobes for Tree Modeling, ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2011
[Website], [Preprint], [DOI], [Video], [Bibtex]
B. Neubert, S. Pirk, O. Deussen, C. Dachsbacher, Improved Model- and View-Dependent Pruning of Large Botanical Scenes, Computer Graphics Forum, 2011 and EGSR 2011
[Website], [Preprint], [DOI], [Bibtex]

Professional Service

Committee Member AAMAS 2019, CVM 2019, Eurographics 2017, Web3D 2010-2014
Reviewer SIGGRAPH 2018, 2017, 2015, 2013, 2012, 2011; SIGGRAPH Asia 2016, 2015, 2012; TOG 2017, 2016, 2013; EG 2018, 2017, 2015, 2014, 2013, 2011, 2009; CGF 2018, 2017, 2016, 2015, 2014; PG 2016, 2015, 2014, 2013; TVCG 2018, 2017, 2014, 2013