James O'Brien

Professor

Research Areas

• Graphics (GR)
• Human-Computer Interaction (HCI)
• Scientific Computing (SCI)
• Computer animation, physical simulation, surface modeling, human perception of motion, computational geometry, image processing, scientific computing

Research Centers

• Berkeley Center for New Media (BCNM)
• Center for Intelligent Systems (CIS)
• Visual Computing Lab (VCL)

Teaching Schedule (Spring 2013)

• CS 184. Foundations of Computer Graphics, M W 10:30-12:00P, 306 Soda

Selected Publications

• E. Kee, J. O'Brien, and H. Farid, "Exposing Photo Manipulation with Inconsistent Shadows," ACM Transactions on Graphics, vol. 32, no. 4, pp. XX:1--12, Sep. 2013.
• R. Narain, T. Pfaff, and J. O'Brien, "Folding and Crumpling Adaptive Sheets," ACM Transactions on Graphics, vol. 32, no. 4, pp. xxx:1--8, July 2013.
• D. Kim, W. Koh, R. Narain, K. Fatahalian, A. Treuille, and J. O'Brien, "Near-exhaustive Precomputation of Secondary Cloth Effects," ACM Transactions on Graphics, vol. 32, no. 4, pp. xxx:1--7, July 2013.
• P. Clausen, M. Wicke, J. Shewchuk, and J. O'Brien, "Simulating Liquids and Solid-Liquid Interactions with Lagrangian Meshes," ACM Transactions on Graphics, vol. 32, no. 2, pp. 17:1--15, April 2013.
• R. Narain, A. Samii, and J. O'Brien, "Adaptive Anisotropic Remeshing for Cloth Simulation," ACM Transactions on Graphics, vol. 31, no. 6, pp. 147:1--10, Nov. 2012.
• F. Hecht, Y. J. Lee, J. Shewchuk, and J. O'Brien, "Updated Sparse Cholesky Factors for Corotational Elastodynamics," ACM Transactions on Graphics, vol. 31, no. 5, pp. X:1--13, Oct. 2012.
• V. Conotter, J. O'Brien, and H. Farid, "Exposing Digital Forgeries in Ballistic Motion," IEEE TRransactions on Information Forensics and Security, vol. 7, no. 1, pp. 1--14, Feb. 2012.
• J. O'Brien and H. Farid, "Exposing Photo Manipulation with Inconsistent Reflections," ACM Transactions on Graphics, vol. 31, no. 1, pp. 1--11, Jan. 2012.
• H. Wang, R. Ramamoorthi, and J. O'Brien, "Data-Driven Elastic Models for Cloth: Modeling and Measurement," ACM Transactions on Graphics, vol. 30, no. 4, pp. 71:1--11, July 2011.
• S. Javdani, S. Tandon, J. Tang, J. O'Brien, and P. Abbeel, "Modeling and Perception of Deformable One-Dimensional Objects," in Proceedings of IEEE International Conference on Robotics and Automation (ICRA) 2011, 2011, pp. 1-8.
• M. Cusumano-Towner, A. Singh, S. Miller, J. O'Brien, and P. Abbeel, "Bringing Clothing into Desired Configurations with Limited Perception," in Proceedings of IEEE International Conference on Robotics and Automation (ICRA) 2011, 2011, pp. 1-8.
• H. Wang, J. O'Brien, and R. Ramamoorthi, "Multi-Resolution Isotropic Strain Limiting," ACM TOG / Proceedings of ACM SIGGRAPH Asia 2010, pp. 160:1-10, Dec. 2010.
• M. Wicke, D. Ritchie, B. M. Klingner, S. Burke, J. Shewchuk, and J. O'Brien, "Dynamic Local Remeshing for Elastoplastic Simulation," ACM TOG / Proceedings of ACM SIGGRAPH 2010, pp. 49:1-11, July 2010.
• H. Wang, F. Hecht, R. Ramamoorthi, and J. O'Brien, "Example-Based Wrinkle Synthesis for Clothing Animation," ACM TOG / Proceedings of ACM SIGGRAPH 2010, pp. 107:1-8, July 2010.
• R. T. Held, E. A. Cooper, J. O'Brien, and M. S. Banks, "Using Blur to Affect Perceived Distance and Size," ACM Transactions on Graphics, vol. 29, no. 2, pp. 19:1--16, March 2010.
• R. Alterovitz, E. Lessard, J. Pouliot, I. J. Hsu, J. O'Brien, and K. Goldberg, "Optimization of HDR brachytherapy dose distributions using linear programming with penalty costs," Medical Physics, vol. 33, no. 11, pp. 4012-4019, Nov. 2006.
• A. W. Bargteil, T. G. Goktekin, J. O'Brien, and J. A. Strain, "A semi-Lagrangian contouring method for fluid simulation," ACM Trans. Graphics, vol. 25, no. 1, pp. 19-38, Jan. 2006.
• A. Bargteil, T. G. Goktekin, J. O'Brien, and J. Strain, "Semi-Lagrangian Contouring for Fluid Simulation," ACM Transactions on Graphics, vol. 25, pp. 19-38, Jan. 2006.
• O. Arikan, D. A. Forsyth, and J. O'Brien, "Fast and detailed approximate global illumination by irradiance decomposition," in Proc. 32nd ACM SIGGRAPH Intl. Conf. on Computer Graphics and Interactive Techniques (SIGGRAPH '05), J. Marks, Ed., New York, NY: The Association for Computing Machinery, Inc., 2005, pp. 1108-1114.
• B. E. Feldman, J. O'Brien, and B. M. Klingner, "Animating gases with hybrid meshes," in Proc. 32nd ACM SIGGRAPH Intl. Conf. on Computer Graphics and Interactive Techniques (SIGGRAPH '05), J. Marks, Ed., New York, NY: The Association for Computing Machinery, Inc., 2005, pp. 904-909.