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Radek Grzeszczuk
Principal Scientist
Visual Computing and User Interfaces
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Background

I am a Principal Scientist at Nokia Research Center, Palo Alto in the Ubiquitous Computing group. My research focuses on image retrieval, mobile augmented reality, 3D modeling and visual user interfaces. Prior to joining Nokia Corp. in 2006, I was a Senior Researcher in the Architecture Reseearch Lab at Intel Corp. where I worked on developing fast and practical algorithms for analysis and visualization of large image data sets. I also worked on parallel algorithms and parallel performance analysis of applications in image analysis, physical simulation, optimization, and machine learning.

I received my BS (1991), MS (1994) and PhD (1998) degrees from University of Toronto.

Professional Activities

Associate Editor, ACM Transaction on Graphics, since 2003
Member of Program Committee, Pacific Conference on Computer Graphics and Applications
Member of Program Committee, IEEE Conference on Computer Vision and Pattern Recognition
Member of Program Committee, IEEE International Conference on Computer Vision

Journal Reviewing: ACM SIGGRAPH, ACM Transactions on Graphics, IEEE Computer Graphics and Applications, Graphical Models Journal, International Journal of Image and Graphics, Computer Vision and Image Understanding, IEEE Transactions on Circuits and Systems.

Conference Reviewing: ACM SIGGRAPH, Pacific Conference on Computer Graphics and Applications, IEEE Visualization, IEEE Conference on Computer Vision and Pattern Recognition, IEEE International Conference on Computer Vision.

 

Publications

Refereed Journal Papers and SIGGRAPH Publications

  • K. E. Hillesland, S. Molinov, R. Grzeszczuk. Nonlinear Optimization Framework for Image-Based Modeling on Programmable Graphics Hardware, ACM Transactions on Graphics, 22(3), pp. 925-934, 2003, (Proceedings of ACM SIGGRAPH 03).
  • W-C. Chen, J-Y. Bouguet, M. H. Chu, R. Grzeszczuk. Light Field Mapping: Efficient Representation and Hardware Rendering of Surface Light Fields. ACM Transactions on Graphics}, 21(3), pp. 447-456, 2002, (Proceedings of ACM SIGGRAPH 02).
  • R. Grzeszczuk, D. Terzopoulos, G. Hinton. NeuroAnimator: Fast Neural Network Emulation and Control of Physics-Based Models, Proceedings of ACM SIGGRAPH 98, Computer Graphics Proceedings, Annual Conference Series, pp. 9-20, 1998.
  • S. J. Gortler, R. Grzeszczuk, R. Szeliski, M. F. Cohen. The Lumigraph, Proceedings of ACM SIGGRAPH 96, Computer Graphics Proceedings, Annual Conference Series, pp. 43-54, 1996.
  • R. Grzeszczuk, D. Terzopoulos. Automated Learning of Muscle-Actuated Locomotion Through Control Abstraction, Proceedings of ACM SIGGRAPH 95, Computer Graphics Proceedings, Annual Conference Series, pp. 63-70, 1995.
  • D. Terzopoulos, X. Tu, R. Grzeszczuk. Artificial Fishes: Autonomous Locomotion, Perception, Behavior, and Learning in a Simulated Physical World, Artificial Life, 1, 4, December, 1994, pp. 327-351.

Refereed Conference Papers

  • V. Chandrasekhar, G. Takacs, D. Chen, S. S. Tsai, R. Grzeszczuk, B. Girod, CHoG: Compressed Histogram of Gradients: A Low Bit-Rate Feature Descriptor, accepted to IEEE Conf. on Computer Vision and Pattern Recognition (CVPR09) (oral presentation)
  • H. Hile, R. Grzeszczuk A. Liu, R. Vedantham, J. Kosecka, G. Borriello, Landmark-based Pedestrian navigation with Enhanced Spatial Reasoning, Seventh International Conference on Pervasive Computing 2009, Pervasive 2009.
  • H. Hile, R. Vedantham, A. Liu, N. Gelfand, G. Cuellar, R. Grzeszczuk, G. Borriello, Landmark-Based Pedestrian Navigation from Collections of Geotagged Photos, Mobile Ubiquitous Multimedia (MUM09), ACM international conference. (best student paper award), Dec 2008.
  • G. Takacs, V. Chandrasekhar, N. Gelfand, Y. Xiong, W-C. Chen, T. Bismpigiannis, R. Grzeszczuk, K. Pulli, B. Girod. Outdoors Augmented Reality on Mobile Phone using Loxel-based Visual Feature Organization. In Proceeding of the 1st ACM International Conference on Multimedia Information Retrieval, MIR '08, pp. 427-434, 2008.
  • G. Takacs, V. Chandrasekhar, B. Girod, R. Grzeszczuk. Feature Tracking for Mobile Augmented Reality Using Video Coder Motion Vectors, 6th IEEE and ACM International Symposium on Mixed and Augmented Reality, 2007, ISMAR 2007, pp.141-144, 13-16 Nov. 2007
  • C. J. Hughes, R. Grzeszczuk, E. Sifakis, D. Kim, S. Kumar, A. P. Selle, J. Chhugani, M. Holliman, Y. Chen. Physical Simulation for Animation and Visual Effects: Parallelization and Characterization for Chip Multiprocessors, ISCA '07: Proceedings of the 34th Annual International Symposium on Computer Architecture, pp. 220-231, 2007.
  • G. Coombe, C. Hantak, R. Grzeszczuk, A. Lastra. Online Construction of Surface Light Fields, Proceedings of Eurographics Symposium on Rendering, 2005.
  • P. Koka, T. Suh, R. Grzeszczuk, M. Smelyanskiy, C. Dulong. Construction and Performance Characterization of Parallel Interior Point Solver on 4-way Intel Itanium Multiprocessor System. Proceedings of IEEE 7th Annual Workshop on Workload Characterization, 2004.
  • D. Vlasic, H. Pfister, S. Molinov, R. Grzeszczuk, W. Matusik. Opacity Light Fields: Interactive Rendering of Surface Light Fields with View-Dependent Opacity, ACM Symposium on Interactive 3D Graphics (I3D), pp. 65-74, April 2003 (ACM Press)
  • S. B. Gokturk, J-Y Bouguet, R. Grzeszczuk. A Data-Driven Model for Monocular Face Tracking, Proceedings of IEEE International
    Conference on Computer Vision    , ICCV 2001, vol. 2, pp. 701-708, 2001.
  • A. Nefian, R. Grzeszczuk, V. Erouhimov, G. Bradski. Statistical Model of the Upper Body for 3D Static and Dynamic Gesture Recognition
    from Stereo Images    , Proceedings of IEEE International Conference on Image Processing, ICIP 2001, vol3, pp. 286-289, 2001.
  • R. Grzeszczuk, G. Bradski, M. H. Chu, J-Y Bouguet. Stereo-Based Gesture Recognition Invariant to 3D Pose and Lighting, in Proceedings of IEEE Computer Vision and Pattern Recognition, Hilton Head, South Carolina, 2000, pp. I:826-833.
  • D. Terzopoulos, T. Rabie, R. Grzeszczuk. Perception and Learning in Artificial Animals, Artificial Life V: Proc. Fifth International Conference on the Synthesis and Simulation of Living Systems, Nara, Japan, May, 1996, pp. 313-320.
  • D.Terzopoulos, X. Tu, R. Grzeszczuk. Artificial Fishes with Autonomous Locomotion, Perception, Behavior, and Learning in a Simulated Physical World, Artificial Life IV: Proc. Fourth International Workshop on the Synthesis and Simulation of Living Systems, Cambridge, MA, July, 1994, 17-27 (plus 3 color plates).
  • R. Grzeszczuk, D. Terzopoulos, G. Hinton. Fast Neural Network Emulation of Dynamical Systems for Computer Animation, in Advances in Neural Information Processing Systems: Proceedings of the 1998 Conference (NIPS11), MIT Press, pp. 882-888.
  • R. Grzeszczuk, D. Terzopoulos. Automated Learning of Muscle-Actuated Locomotion through Control Abstraction, Proceedings of Seventh Western Computer Graphics Conference, Panorama, BC, Canada, March, 1996, pp. 61-68.
  • R. Grzeszczuk, D. Terzopoulos, G. Hinton. Learning Fast Neural Network Emulators for Physics-Based Models. (Technical sketch)
    Proceedings of ACM SIGGRAPH 97 Conference, Los Angeles, CA, August, 1997, in Computer Graphics Visual Proceedings, Annual
    Conference Series, 1997, p. 167.
 

Patents

  • Determining a Vantage Point of an Image, R. Grzeszczuk, US patent 6,028,955, February 22, 2000.
  • Compression of Surface Light Fields, R. Grzeszczuk, J-Y. Bouguet, W-C. Chen, US patent application filed January 9, 2001.
  • Accelerated Visualization of Surface Light Fields, R. Grzeszczuk, J-Y. Bouguet, W-C. Chen, US patent 6,906,714, June 14, 2005.
  • System and Method for Gesture Recognition in Three Dimensions using Stereo Imaging and Color Vision, R. Grzeszczuk, J-Y. Bouguet, M. Chu, G. Bradski, US patent 6,788,809, 2005.
  • Statistical Model-based System for 3D Gesture Recognition using a Stereo Images, A. Nefian, R. Grzeszczuk, V. Erouhimov, G. Bradski, US patent application filed April, 2001.
 
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