Publications
Context-Based Coherent Surface Completion
Gur Harary, Ayellet Tal, Eitan Grinspun,
ACM Transactions on Graphics, 2014.

[Paper (PDF)] [BibTeX]
Poisson-Based Continuous Surface Generation for Goal-Based Caustics
Yonghao Yue, Kei Iwasaki, Bing-Yu Chen, Yoshinori Dobashi, Tomoyuki Nishita,
ACM Transactions on Graphics, 2014.

[Paper (PDF)] [BibTeX] [Project]
Designing Inflatable Structures
Melina Skouras, Bernhard Thomaszewski, Peter Kaufmann, Akash Garg, Bernd Bickel, Eitan Grinspun, Markus Gross,
SIGGRAPH (ACM Transactions on Graphics), 2014.

[BibTeX]
Wire Mesh Design
Akash Garg, Andrew Sageman-Furnas, Bailin Deng, Yonghao Yue, Eitan Grinspun, Mark Pauly, Max Wardetzky,
SIGGRAPH (ACM Transactions on Graphics), 2014.

[Paper (PDF)] [BibTeX]
Fast and Memory-Efficient Topological Denoising of 2D and 3D Scalar Fields
David Gunther, Alec Jacobson, Jan Reininghaus, Hans-Peter Seidel, Olga Sorkine-Hornung, Tino Weinkauf,
IEEE SciVis (Transactions on Visualization and Computer Graphics), 2014.

[Paper (PDF)] [BibTeX]
A Reduced Model for Interactive Hairs
Menglei Chai, Changxi Zheng, Kun Zhou,
SIGGRAPH (ACM Transactions on Graphics), 2014.

[Paper (PDF)] [BibTeX] [Project]
Adaptive Nonlinearity for Collisions in Complex Rod Assemblies
Danny M. Kaufman, Rasmus Tamstorf, Breannan Smith, Jean-Marie Aubry, Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), 2014.

[Paper (PDF)] [BibTeX] [Project]
An Asymptotic Numerical Method for Inverse Elastic Shape Design
Xiang Chen, Changxi Zheng, Weiwei Xu, Kun Zhou,
SIGGRAPH (ACM Transactions on Graphics), 2014.

[Paper (PDF)] [BibTeX] [Project] [Video]
Fast Multipole Representation of Diffusion Curves and Points
Timothy Sun, Papoj Thamjaroenporn, Changxi Zheng,
SIGGRAPH (ACM Transactions on Graphics), 2014.

[Paper (PDF)] [BibTeX] [Project]
Multimaterial Mesh-Based Surface Tracking
Fang Da, Christopher Batty, Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), 2014.

[Paper (PDF)] [BibTeX] [Project] [Video]
Skinning Cubic Bezier Splines and Catmull-Clark Subdivision Surfaces
Songrun Liu, Alec Jacobson, Yotam Gingold,
SIGGRAPH Asia (ACM Transactions on Graphics), 2014.

[Paper (PDF)] [BibTeX] [Project]
Geosemantic Snapping for Sketch-Based Modeling
Alex Shtof, Alexander Agathos, Yotam Gingold, Ariel Shamir, Daniel Cohen-Or,
Computer Graphics Forum, 2013.

[Paper (PDF)] [BibTeX] [Project] [Video]
Discrete bending forces and their Jacobians
Rasmus Tamstorf, Eitan Grinspun,
Graphical Models, pp.362-370, 2013.

[Paper (PDF)] [BibTeX]
A discrete geometric approach for simulating the dynamics of thin viscous threads
Basile Audoly, Nicolas Clauvelin, Pierre-Thomas Brun, Miklos Bergou, Eitan Grinspun, Max Wardetzky,
Journal of Computational Physics, pp.18-49, 2013.

[Paper (PDF)] [BibTeX]
3D Self-Portraits
Hao Li, Etienne Vouga, Anton Gudym, Jonathan T. Barron, Linjie Luo, Gleb Gusev,
SIGGRAPH Asia (ACM Transactions on Graphics), 2013.

[Paper (PDF)] [BibTeX] [Project]
Parsing Sewing Patterns into 3D Garments
Floraine Berthouzoz, Akash Garg, Danny Kaufman, Eitan Grinspun, Maneesh Agrawala,
SIGGRAPH ( ACM Transactions on Graphics), 2013.

[Paper (PDF)] [BibTeX] [Project] [Video]
Interactive Localized Liquid Motion Editing
Zherong Pan, Jin Huang, Yiying Tong, Changxi Zheng, and Hujun Bao,
SIGGRAPH Asia, 2013.

[Paper (PDF)] [BibTeX]
Urban Pattern: Layout Design by Hierarchical Domain Splitting
Yong-Liang Yang, Jun Wang, Etienne Vouga, Peter Wonka,
SIGGRAPH Asia (ACM Transactions on Graphics), 2013.

[Paper (PDF)] [BibTeX] [Project]
One-to-Many: Example-Based Mesh Animation Synthesis
Changxi Zheng,
Symposium on Computer Animation, 2013.

[Paper (PDF)] [BibTeX] [Project] [Video]
Micro Perceptual Human Computation for Visual Tasks
Yotam Gingold, Ariel Shamir, Daniel Cohen-Or,
ACM Transactions on Graphics, pp.119:1--119:12, 2012.

[Paper (PDF)] [BibTeX] [Project]
RigMesh: Automatic Rigging for Part-Based Shape Modeling and Deformation
Peter Borosan, Ming Jin, Doug DeCarlo, Yotam Gingold, Andrew Nealen,
ACM Transactions on Graphics, 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Speculative Parallel Asynchronous Contact Mechanics
Samantha Ainsley, Etienne Vouga, Eitan Grinspun, and Rasmus Tamstorf,
ACM Transactions on Graphics (SIGGRAPH Asia), pp.8, 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Mapping Cardiac Surface Mechanics with Structured Light Imaging
Jacob I. Laughner, Song Zhang, Hao Li, Connie C. Shao, Igor R. Efimov,
American Journal of Physiology, Heart and Circulatory Physiology, PMID: 22796539, 2012.

[Paper (PDF)] [BibTeX]
Asynchronous Contact Mechanics (CACM Research Highlights)
David Harmon, Etienne Vouga, Breannan Smith, Rasmus Tamstorf, and Eitan Grinspun,
Communications of the ACM, pp.102--109, 2012.

[Paper (PDF)] [BibTeX]
Technical Perspective: Building Robust Dynamical Simulation Systems
Dinesh Manocha,
Communications of the ACM, pp.101, 2012.

[Paper (PDF)] [BibTeX]
Factored Facade Acquisition Using Symmetric Line Arrangements
Duygu Ceylan, Niloy J. Mitra, Hao Li, Thibaut Weise, Mark Pauly,
Eurographics (Computer Graphics Forum), 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Multi-View Hair Capture Using orientation Fields
Linjie Luo, Hao Li, Sylvain Paris, Thibaut Weise, Mark Pauly, Szymon Rusinkiewicz,
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Geometric Numerical Integration of Inequality Constrained Nonsmooth Hamiltonian Systems
Danny M. Kaufman and Dinesh K. Pai,
SIAM Journal on Scientific Computing, 2012.

[Paper (PDF)] [BibTeX]
Interactive Editing of Deformable Simulations
Jernej Barbič, Fun Shing Sin, Eitan Grinspun,
SIGGRAPH, 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Design of Self-supporting Surfaces
Etienne Vouga, Mathias Hobinger, Johannes Wallner, Helmut Pottmann,
SIGGRAPH ( ACM Transactions on Graphics), 2012.

[Paper (PDF)] [BibTeX] [Project]
Energy-based Self-Collision Culling for Arbitrary Mesh Deformations
Changxi Zheng and Doug L. James,
SIGGRAPH ( ACM Transactions on Graphics), 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Reflections on Simultaneous Impact
Breannan Smith, Danny M. Kaufman, Etienne Vouga, Rasmus Tamstorf, Eitan Grinspun,
SIGGRAPH ( ACM Transactions on Graphics), pp.106:1--106:12, 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Discrete Viscous Sheets
Christopher Batty, Andres Uribe, Basile Audoly, Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), pp.113:1-113:7, 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Precomputed Acceleration Noise for Improved Rigid-Body Sound
Jeffrey N. Chadwick, Changxi Zheng, and Doug L. James,
SIGGRAPH (ACM Transactions on Graphics), 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Temporally Coherent Completion of Dynamic Shapes
Hao Li, Linjie Luo, Daniel Vlasic, Pieter Peers, Jovan Popović, Mark Pauly, Szymon Rusinkiewicz,
SIGGRAPH (ACM Transactions on Graphics), 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Tracking Surfaces with Evolving Topology
Morten Bojsen-Hansen, Hao Li, Chris Wojtan,
SIGGRAPH (ACM Transactions on Graphics), pp.53:1--53:10, 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Diamonds From the Rough: Improving Drawing, Painting, and Singing via Crowdsourcing
Yotam Gingold, Etienne Vouga, Eitan Grinspun, Haym Hirsh,
Human Computation Workshop (HCOMP), 2012.

[Paper (PDF)] [BibTeX] [Project]
Pixelated Image Abstraction
Timothy Gerstner, Doug DeCarlo, Marc Alexa, Adam Finkelstein, Yotam Gingold, Andrew Nealen,
International Symposium on Non-Photorealistic Animation and Rendering (NPAR), 2012.

[Paper (PDF)] [BibTeX] [Project]
Faster Acceleration Noise for Multibody Animations using Precomputed Soundbanks
Jeffrey N. Chadwick, Changxi Zheng, and Doug L. James ,
Symposium on Computer Animation, 2012.

[Paper (PDF)] [BibTeX] [Project] [Video]
Flexible Developable Surfaces
Justin Solomon, Etienne Vouga, Max Wardetzky, and Eitan Grinspun,
Symposium on Geometry Processing, 2012.

[Paper (PDF)] [BibTeX]
Asynchronous Variational Contact Mechanics
E. Vouga, D. Harmon, R. Tamstorf, and E. Grinspun,
Computer Methods in Applied Mechanics and Engineering, pp.2181-2194, 2011.

[Paper (PDF)] [BibTeX]
Example-Based Elastic Materials
S. Martin, B. Thomaszewski, E. Grinspun, M. Gross,
SIGGRAPH (ACM Transactions on Graphics), pp.72:1-72:8, 2011.

[Paper (PDF)] [BibTeX] [Project] [Video]
Sensitive Couture for Interactive Garment Editing and Modeling
Nobuyuki Umetani, Danny M. Kaufman, Takeo Igarashi, Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), 2011.

[Paper (PDF)] [BibTeX] [Project] [Video]
Toward High-Quality Modal Contact Sound
Changxi Zheng and Doug L. James,
SIGGRAPH (ACM Transactions on Graphics), 2011.

[Paper (PDF)] [BibTeX] [Project] [Video]
Dynamic Hair Capture
Linjie Luo, Hao Li, Thibaut Weise, Sylvain Paris, Mark Pauly, Szymon Rusinkiewicz,
Technical Report, Princeton University, 2011.

[Paper (PDF)] [BibTeX] [Project] [Video]
Harmonic enrichment functions: A unified treatment of multiple, intersecting and branched cracks in the extended finite element method
S. E. Mousavi, E. Grinspun, N. Sukumar,
International Journal for Numerical Methods in Engineering, pp.1306-1322, 2010.

[Paper (PDF)] [BibTeX]
Higher-order extended finite elements with harmonic enrichment functions for complex crack problems
S. E. Mousavi, E. Grinspun, N. Sukumar,
International Journal for Numerical Methods in Engineering, pp.560-574, 2010.

[Paper (PDF)] [BibTeX]
Discrete Viscous Threads
Miklós Bergou, Basile Audoly, Etienne Vouga, Max Wardetzky, Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), 2010.

[Paper (PDF)] [BibTeX] [Project] [Video]
Rigid-Body Fracture Sound with Precomputed Soundbanks
Changxi Zheng and Doug L. James,
SIGGRAPH (ACM Transactions on Graphics), 2010.

[Paper (PDF)] [BibTeX] [Project] [Video]
Synthesizing Structured Image Hybrids
Eric Risser, Charles Han, Rozenn Dahyot, Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), 2010.

[Paper (PDF)] [BibTeX] [Project]
Unified Simulation of Elastic Rods, Shells, and Solids
Sebastian Martin, Peter Kaufmann, Mario Botsch, Eitan Grinspun, Markus Gross,
SIGGRAPH (ACM Transactions on Graphics), 2010.

[Paper (PDF)] [BibTeX] [Video]
Coherent Ray Tracing for Complex Light Transport Effects
Ryan Overbeck,
PhD Thesis, Department of Computer Science, Columbia University, 2010.
[Paper (PDF)] [BibTeX]
Robust, Efficient, and Accurate Contact Algorithms
David Harmon,
PhD Thesis, Department of Computer Science, Columbia University, 2010.
[Paper (PDF)] [BibTeX]
Affine Double and Triple Product Wavelet Integrals for Rendering
Bo Sun and Ravi Ramamoorthi,
ACM Transactions on Graphics, pp.1-17, 2009.

[Paper (PDF)] [BibTeX] [Project] [Video]
Implicit-Explicit Variational Integration of Highly Oscillatory Problems
Ari Stern, Eitan Grinspun,
SIAM Multiscale Modeling and Simulation, pp.1779-1794, 2009.

[Paper (PDF)] [BibTeX]
An Empirical BSSRDF Model
Craig Donner and Jason Lawrence and Ravi Ramamoorthi and Toshiya Hachisuka and Henrik Wann Jensen and Shree Nayar ,
SIGGRAPH (ACM Transactions on Graphics), pp.30:1-30:10, 2009.

[Paper (PDF)] [BibTeX]
Asynchronous Contact Mechanics
David Harmon, Etienne Vouga, Breannan Smith, Rasmus Tamstorf, Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), 2009.

[Paper (PDF)] [BibTeX] [Project] [Video]
Enrichment Textures for Detailed Cutting of Shells
Peter Kaufmann, Sebastian Martin, Mario Botsch, Eitan Grinspun, Markus Gross,
SIGGRAPH (ACM Transactions on Graphics), 2009.

[Paper (PDF)] [BibTeX] [Video]
Frequency Analysis and Sheared Reconstruction for Rendering Motion Blur
Kevin Egan, Yu-Ting Tseng, Nicolas Holzschuch, Frédo Durand, Ravi Ramamoorthi,
SIGGRAPH (ACM Transactions on Graphics), pp.93:1-93:13, 2009.

[Paper (PDF)] [BibTeX] [Project] [Video]
Harmonic Fluids
Changxi Zheng and Doug L. James,
SIGGRAPH (ACM Transactions on Graphics), 2009.

[Paper (PDF)] [BibTeX] [Project] [Video]
Semantic Deformation Transfer
Ilya Baran, Daniel Vlasic, Eitan Grinspun, Jovan Popovic,
SIGGRAPH (ACM Transactions on Graphics), 2009.

[Paper (PDF)] [BibTeX] [Video]
Adaptive Wavelet Rendering
Ryan S. Overbeck and Craig Donner and Ravi Ramamoorthi,
SIGGRAPH Asia (ACM Transactions on Graphics), pp.1-12, 2009.

[Paper (PDF)] [BibTeX] [Project]
A Precomputed Polynomial Representation for Interactive BRDF Editing with Global Illumination
Aner Ben-Artzi, Kevin Egan, Frédo Durand, Ravi Ramamoorthi,
ACM Transactions on Graphics, 2008.

[Paper (PDF)] [BibTeX] [Video]
Multiscale Texture Synthesis
Charles Han, Eric Risser, Ravi Ramamoorthi, Eitan Grinspun,
SIGGRAPH ( ACM Transactions on Graphics), pp.51, 2008.

[Paper (PDF)] [BibTeX] [Project] [Video]
Discrete Elastic Rods
Miklós Bergou, Max Wardetzky, Stephen Robinson, Basile Audoly, Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), pp.1-12, 2008.

[Paper (PDF)] [BibTeX] [Project] [Video]
Light Field Transfer: Global Illumination Between Real and Synthetic Objects
Oliver Cossairt, Shree Nayar, Ravi Ramamoorthi,
SIGGRAPH (ACM Transactions on Graphics), 2008.

[Paper (PDF)] [BibTeX] [Project] [Video]
Robust Treatment of Simultaneous Collisions
David Harmon, Etienne Vouga, Rasmus Tamstorf, and Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), pp.1-4, 2008.

[Paper (PDF)] [BibTeX] [Project] [Video]
A Layered, Heterogeneous Reflectance Model for Acquiring and Rendering Human Skin
Craig Donner, Tim Weyrich, Eugene d\'Eon, Ravi Ramamoorthi, Szymon Rusinkiewicz,
SIGGRAPH Asia (ACM Transactions on Graphics), 2008.

[Paper (PDF)] [BibTeX] [Project]
Compressive Structured Light for Recovering Inhomogeneous Participating Media
Jinwei Gu, Shree Nayar, Eitan Grinspun, Peter Belhumeur, Ravi Ramamoorthi,
Europian Conference on Computer Vision (ECCV), 2008.

[Paper (PDF)] [BibTeX] [Project]
Large Ray Packets for Real-time Whitted Ray Tracing
Ryan Overbeck, Ravi Ramamoorthi, and William R. Mark,
IEEE/EG Symposium on Interactive Ray Tracing (IRT), pp.41-48, 2008.

[Paper (PDF)] [BibTeX] [Project]
Analytical, Wavelet and Frequency based Mathematical Models for Real-Time Rendering
Bo Sun,
PhD Thesis, Department of Computer Science, Columbia University, 2008.
[Paper (PDF)] [BibTeX]
A First Order Analysis of Lighting, Shading, and Shadows
Ravi Ramamoorthi, Dhruv Mahajan and Peter Belhumeur,
ACM Transactions on Graphics , 2007.

[Paper (PDF)] [BibTeX] [Project]
Discrete Quadratic Curvature Energies [CAGD Most Cited Paper Award for 2010]
Max Wardetzky, Miklós Bergou, David Harmon, Denis Zorin, and Eitan Grinspun,
Computer Aided Geometric Design, pp.499-518, 2007.

[Paper (PDF)] [BibTeX] [Project] [Video]
A Theory of Frequency Domain Invariants: Spherical Harmonic Identities for BRDF/Lighting Transfer and Image Consistency
Dhruv Mahajan, Ravi Ramamoorthi, Brian Curless,
IEEE Transactions on Pattern Analysis and Machine Intelligence, pp.197-213, 2007.

[Paper (PDF)] [BibTeX] [Project]
Time-Varying BRDFs
Bo Sun, Kalyan Sunkavalli, Ravi Ramamoorthi, Peter Belhumeur, and Shree Nayar,
IEEE Transactions on Visualization and Computer Graphics, pp.595-609, 2007.

[Paper (PDF)] [BibTeX] [Project] [Video]
A Theory of Locally Low Dimensional Light Transport
Dhruv Mahajan, Ira Kemelmacher Shlizerman, Ravi Ramamoorthi, Peter Belhumeur,
SIGGRAPH (ACM Transactions on Graphics), 2007.

[Paper (PDF)] [BibTeX] [Project] [Video]
Active Refocusing of Images and Videos
Francesc Moreno-Noguer, Peter N. Belhumeur, Shree K. Nayar,
SIGGRAPH (ACM Transactions on Graphics), 2007.

[Paper (PDF)] [BibTeX] [Video]
Efficient Simulation of Inextensible Cloth
Rony Goldenthal, David Harmon, Raanan Fattal, Michel Bercovier, Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), 2007.

[Paper (PDF)] [BibTeX] [Project] [Video]
Frequency Domain Normal Map Filtering
Charles Han, Bo Sun, Ravi Ramamoorthi, and Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), pp.28, 2007.

[Paper (PDF)] [BibTeX] [Project] [Video]
Prakash: Lighting Aware Motion Capture using Photosensing Markers and Multiplexed Illuminators
Ramesh Raskar, Hideaki Nii, Bert deDecker, Yuki Hashimoto, Jay Summet, Dylan Moore, Yong Zhao, Jonathan Westhues, Paul Dietz, John Barnwell, Shree Nayar, Masahiko Inami, Philippe Bekaert, Michael Noland, Vlad Branzoi, Erich Bruns,
SIGGRAPH (ACM Transactions on Graphics), 2007.

[Paper (PDF)] [BibTeX] [Project] [Video]
TRACKS: Toward Directable Thin Shells
Miklós Bergou, Saurabh Mathur, Max Wardetzky, and Eitan Grinspun,
SIGGRAPH (ACM Transactions on Graphics), pp.50, 2007.

[Paper (PDF)] [BibTeX] [Project] [Video]
4D Compression and Relighting with High-Resolution Light Transport Matrices
Ewen Cheslack-Potava, Nolan Goodnight, Ren Ng, Ravi Ramamoorthi and Greg Humphreys,
ACM Symposium on Interactive 3D Graphics and Games, 2007.

[Paper (PDF)] [BibTeX] [Video]
A Real-time Beam Tracer with Application to Exact Soft Shadows
Ryan Overbeck, Ravi Ramamoorthi, and William R. Mark,
Eurographics Symposium on Rendering, 2007.

[Paper (PDF)] [BibTeX] [Video]
Dirty Glass: Rendering Contamination on Transparent Surfaces
Jinwei Gu, Ravi Ramamoorthi, Peter Belhumeur, Shree Nayar,
EuroGraphics Symposium on Rendering, 2007.

[Paper (PDF)] [BibTeX] [Project] [Video]
Material Based Splashing of Water Drops
Kshitiz Garg and Gurunandan Krishnan and Shree K. Nayar,
EuroGraphics Symposium on Rendering, 2007.

[Paper (PDF)] [BibTeX] [Project] [Video]
Scene Collages and Flexible Camera Arrays
Yoshikuni Nomura, Li Zhang, and Shree Nayar,
EuroGraphics Symposium on Rendering, 2007.

[Paper (PDF)] [BibTeX] [Project] [Video]
Viewpoint-Coded Structured Light
Mark Young, Erik Beeson, James Davis, Szymon Rusinkiewicz and Ravi Ramamoorthi,
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2007.

[Paper (PDF)] [BibTeX] [Project]
SimX meets SCIRun: A Component-based Implementation of a Computational Study System
Siu-Man Yau, Eitan Grinspun, Vijay Karamcheti, Denis Zorin,
IEEE International Parallel & Distributed Processing Symposium, pp.322, 2007.

[Paper (PDF)] [BibTeX]
Cubic Shells
Akash Garg, Eitan Grinspun, Max Wardetzky, Denis Zorin,
Symposium on Computer Animation, pp.91-98, 2007.

[Paper (PDF)] [BibTeX] [Video]
Discrete Laplace operators: No free lunch
Max Wardetzky, Saurabh Mathur, Felix Kälberer and Eitan Grinspun,
Symposium on Geometry Processing, pp.33-37, 2007.

[Paper (PDF)] [BibTeX]
Final-Placement BRDF Editing
Aner Ben-Artzi,
PhD Thesis, Department of Computer Science, Columbia University, 2007.
[Paper (PDF)] [BibTeX]
A note on the triangle-centered quadratic interpolation discretization of the shape operator
Jason Reisman, Eitan Grinspun, Denis Zorin,
Technical Report, Department of Computer Science, Columbia University and New York University, 2007.
[Paper (PDF)] [BibTeX]
Modeling Illumination Variation with Spherical Harmonics
Ravi Ramamoorthi,
Face Processing: Advanced Modeling Methods, pp.385-424, 2006.
[Paper (PDF)] [BibTeX] [Project]
Computing discrete shape operators on general meshes [Eurographics 2006 Best Paper, 3rd Place]
Eitan Grinspun, Yotam Gingold, Jason Reisman, Denis Zorin,
Eurographics (Computer Graphics Forum), pp.547-556, 2006.

[Paper (PDF)] [BibTeX]
Reflectance Sharing: Predicting Appearance from a Sparse Set of Images of a Known Shape
Todd Zickler, Ravi Ramamoorthi, Sebastian Enrique and Peter Belhumeur,
IEEE Transactions on Pattern Analysis and Machine Intelligence, pp.1287-1302, 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
Efficient Shadows from Sampled Environment Maps
Aner Ben-Artzi, Ravi Ramamoorthi and Maneesh Agrawala,
Journal of Graphics Tools, pp.13-36, 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
A Compact Factored Representation of Heterogeneous Subsurface Scattering
Pieter Peers, Karl vom Berge, Wojciech Matusik, Ravi Ramamoorthi, Jason Lawrence, Szymon Rusinkiewicz, and Philip Dutre,
SIGGRAPH (ACM Transactions on Graphics), pp.746-753, 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
Acquiring Scattering Properties of Participating Media by Dilution
Srinivasa Narasimhan, Mohit Gupta, Craig Donner, Ravi Ramamoorthi, Shree Nayar and Henrik Jensen,
SIGGRAPH (ACM Transactions on Graphics), pp.1003-1012, 2006.

[Paper (PDF)] [BibTeX] [Project]
Fast Separation of Direct and Global Components of a Scene using High-Frequency Illumination
Shree Nayar, Gurunandan Krishnan, Michael Grossberg and Ramesh Raskar,
SIGGRAPH (ACM Transactions on Graphics), 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
Inverse Shade Trees for Non-Parametric Material Representation and Editing
Jason Lawrence, Aner Ben-Artzi, Christopher DeCoro, Wojciech Matusik, Hanspeter Pfister, Ravi Ramamoorthi, Szymon Rusinkiewicz,
SIGGRAPH (ACM Transactions on Graphics), pp.735-745, 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
Multiview Radial Catadioptric Imaging for Scene Capture
Sujit Kuthirummal and Shree Nayar,
SIGGRAPH (ACM Transactions on Graphics), 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
Photorealistic Rendering of Rain Streaks
Kshitiz Garg and Shree Nayar,
SIGGRAPH (ACM Transactions on Graphics), 2006.

[Paper (PDF)] [BibTeX] [Project]
Projection Defocus Analysis for Scene Capture and Image Display
Li Zhang and Shree Nayar,
SIGGRAPH (ACM Transactions on Graphics), 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
Real-Time BRDF Editing in Complex Lighting
Aner Ben-Artzi, Ryan Overbeck and Ravi Ramamoorthi,
SIGGRAPH (ACM Transactions on Graphics), pp.945-954, 2006.

[Paper (PDF)] [BibTeX] [Video]
Real-Time Soft Shadows in Dynamic Scenes using Spherical Harmonic Exponentiation
Zhong Ren, Rui Wang, John Snyder, Kun Zhou, Xinguo Liu, Bo Sun, Peter-Pike Sloan, Hujun Bao, Qunsheng Peng, and Baining Guo,
SIGGRAPH (ACM Transactions on Graphics), 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
Time-Varying Surface Appearance: Acquisition, Modeling and Rendering
Jinwei Gu, Chien-I Tu, Ravi Ramamoorthi, Peter Belhumeur, Wojciech Matusik and Shree Nayar,
SIGGRAPH (ACM Transactions on Graphics), pp.762-771, 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
Exploiting Temporal Coherence for Incremental All-Frequency Relighting
Ryan Overbeck, Aner Ben-Artzi, Ravi Ramamoorthi and Eitan Grinspun,
Eurographics Symposium on Rendering, 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
Time-Varying BRDFs
Bo Sun, Kalyan Sunkavalli, Ravi Ramamoorthi, Peter Belhumeur, and Shree Nayar,
Eurographics Workshop on Natural Phenomena, 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
A Theory of Spherical Harmonic Identities for BRDF/Lighting Transfer and Image Consistency
Dhruv Mahajan, Ravi Ramamoorthi and Brian Curless,
European Conference on Computer Vision, pp.41-55 (vol IV), 2006.

[Paper (PDF)] [BibTeX] [Project]
A Quadratic Bending Model for Inextensible Surfaces
Miklós Bergou, Max Wardetzky, David Harmon, Denis Zorin, and Eitan Grinspun,
Fourth Eurographics Symposium on Geometry Processing, pp.227-230, 2006.

[Paper (PDF)] [BibTeX] [Project] [Video]
Sim-X: Parallel System Software for Interactive Multi-Experiment Computational Studies
Siu-Man Yau, Eitan Grinspun, Vijay Karamcheti, and Denis Zorin,
International Parallel & Distributed Processing Symposium, 2006.

[Paper (PDF)] [BibTeX]
Discrete Shells Origami
Robert Burgoon, Eitan Grinspun, Zoë Wood,
Proceedings of Computers And Their Applications, pp.180-187, 2006.

[Paper (PDF)] [BibTeX]
Exploiting Temporal Coherence for Pre-computation Based Rendering
Ryan Overbeck,
Masters Thesis, Department of Computer Science, Columbia University, 2006.
[Paper (PDF)] [BibTeX]
A Fourier Theory for Cast Shadows
Ravi Ramamoorthi, Melissa Koudelka and Peter Belhumeur,
IEEE Transactions on Pattern Analysis and Machine Intelligence, pp.288-295, 2005.

[Paper (PDF)] [BibTeX]
Spacetime Stereo: A Unifying Framework for Depth from Triangulation
James Davis, Diego Nehab, Ravi Ramamoorthi and Szymon Rusinkiewicz,
IEEE Transactions on Pattern Analysis and Machine Intelligence, pp.296-302, 2005.

[Paper (PDF)] [BibTeX] [Project]
A Practical Analytic Single Scattering Model for Real Time Rendering
Bo Sun, Ravi Ramamoorthi, Srinivasa Narasimhan and Shree Nayar,
SIGGRAPH (ACM Transactions on Graphics), pp.1040-1049, 2005.

[Paper (PDF)] [BibTeX] [Project] [Video]
Efficiently Combining Positions and Normals for Precise 3D Geometry
Diego Nehab, Szymon Rusinkiewicz, James Davis and Ravi Ramamoorthi,
SIGGRAPH (ACM Transactions on Graphics), pp.536-543, 2005.

[Paper (PDF)] [BibTeX] [Project]
Removing Photography Artifacts using Gradient Projection and Flash-Exposure Sampling
Amit Agarwal, Ramesh Raskar, Shree Nayar and Yuanzhen Li,
SIGGRAPH (ACM Transactions on Graphics), pp.828-835, 2005.

[Paper (PDF)] [BibTeX]
Adaptive Numerical Cumulative Distribution Functions for Efficient Importance Sampling
Jason Lawrence, Szymon Rusinkiewicz and Ravi Ramamoorthi,
EuroGraphics Symposium on Rendering, pp.11-20, 2005.

[Paper (PDF)] [BibTeX]
Reflectance Sharing: Image-Based Rendering from a Sparse Set of Images
Todd Zickler, Sebastian Enrique, Ravi Ramamoorthi and Peter Belhumeur,
EuroGraphics Symposium on Rendering, 2005.

[Paper (PDF)] [BibTeX] [Project] [Video]
A Signal-Processing Framework for Reflection
Ravi Ramamoorthi and Pat Hanrahan,
ACM Transactions on Graphics, pp.1004-1042, 2004.

[Paper (PDF)] [BibTeX]
Lighting sensitive display
Shree Nayar, Peter Belhumeur and Terry Boult ,
ACM Transactions on Graphics, pp.963-979, 2004.

[Paper (PDF)] [BibTeX] [Project] [Video]
Efficient BRDF Importance Sampling Using a Factored Representation
Jason Lawrence, Szymon Rusinkiewicz and Ravi Ramamoorthi,
SIGGRAPH (ACM Transactions on Graphics), pp.494-503, 2004.

[Paper (PDF)] [BibTeX] [Project]
Eyes for Relighting
Ko Nishino and Shree Nayar,
SIGGRAPH (ACM Transactions on Graphics), pp.704-711, 2004.

[Paper (PDF)] [BibTeX] [Video]
Triple Product Wavelet Integrals for All-Frequency Relighting
Ren Ng, Ravi Ramamoorthi and Pat Hanrahan,
SIGGRAPH (ACM Transactions on Graphics), pp.475-485, 2004.

[Paper (PDF)] [BibTeX] [Project] [Video]
Practical Rendering of Multiple Scattering Effects in Participating Media
Simon Premoze, Michael Ashikhmin, Jerry Tessendorf, Ravi Ramamoorthi and Shree Nayar,
EuroGraphics Symposium on Rendering, 2004.

[Paper (PDF)] [BibTeX]
A Fourier Theory for Cast Shadows
Ravi Ramamoorthi, Melissa Koudelka and Peter Belhumeur,
European Conference on Computer Vision (ECCV), pp.146-162 (vol 1), 2004.

[Paper (PDF)] [BibTeX]
A Discrete Model for Inelastic Deformation of Thin Shells
Yotam Gingold, Adrian Secord, Jefferson Y. Han, Eitan Grinspun, Denis Zorin,
Technical Report, Courant Institute of Mathematical Sciences, New York University, 2004.
[Paper (PDF)] [BibTeX] [Project]
Natural Hierarchical Refinement for Finite Element Methods
Petr Krysl, Eitan Grinspun, and Peter Schröder,
International Journal for Numerical Methods in Engineering, pp.1109–1124, 2003.

[Paper (PDF)] [BibTeX]
All-Frequency Shadows Using Non-Linear Wavelet Lighting Approximation
Ren Ng, Ravi Ramamoorthi and Pat Hanrahan,
SIGGRAPH (ACM Transactions on Graphics), pp.376-381, 2003.

[Paper (PDF)] [BibTeX] [Project] [Video]
Sparse Matrix Solvers on the GPU: Conjugate Gradients and Multigrid
Jeff Bolz, Ian Farmer, Eitan Grinspun, and Peter Schröder,
SIGGRAPH (ACM Transactions on Graphics), pp.917-924, 2003.

[Paper (PDF)] [BibTeX]
Structured Importance Sampling of Environment Maps
Sameer Agarwal, Ravi Ramamoorthi, Serge Belongie and Henrik Jensen,
SIGGRAPH (ACM Transactions on Graphics), pp.605-612, 2003.

[Paper (PDF)] [BibTeX] [Video]
Discrete Shells
Eitan Grinspun, Anil Hirani, Mathieu Desbrun and Peter Schröder,
ACM SIGGRAPH / Eurographics Symposium on Computer Animation, pp.62-67, 2003.

[Paper (PDF)] [BibTeX]
Spacetime Stereo: A Unifying Framework for Depth from Triangulation
James Davis, Ravi Ramamoorthi and Szymon Rusinkiewicz,
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), pp.359-366 (vol 2), 2003.

[Paper (PDF)] [BibTeX] [Project]
Using Specularities for Recognition
Margarita Osadchy, David Jacobs and Ravi Ramamoorthi,
International Conference on Computer Vision, pp.1512-1519, 2003.

[Paper (PDF)] [BibTeX]
The Basis Refinement Method
Eitan Grinspun,
PhD Thesis, Caltech, 2003.
[Paper (PDF)] [BibTeX]
Analytic PCA Construction for Theoretical Analysis of Lighting Variability in Images of a Lambertian Object
Ravi Ramamoorthi,
IEEE Transactions on Pattern Analysis and Machine Intelligence, pp.1322-1333, 2002.

[Paper (PDF)] [BibTeX] [Project]
CHARMS: A Simple Framework for Adaptive Simulation
Eitan Grinspun, Petr Krysl and Peter Schröder,
SIGGRAPH (ACM Transactions on Graphics), pp.281-290, 2002.

[Paper (PDF)] [BibTeX]
Frequency Space Environment Map Rendering
Ravi Ramamoorthi and Pat Hanrahan,
SIGGRAPH, ACM Transactions on Graphics, pp.517-526, 2002.

[Paper (PDF)] [BibTeX] [Project]
Normal Bounds for Subdivision-Surface Interference Detection
Eitan Grinspun and Peter Schröder,
IEEE VIS \'01: Proceedings of the conference on Visualization \'01, pp.333-340, 2001.

[Paper (PDF)] [BibTeX]
On the relationship between Radiance and Irradiance: Determining the illumination from images of a convex Lambertian object
Ravi Ramamoorthi and Pat Hanrahan,
Journal of the Optical Society of America, pp.2448-2459, 2001.

[Paper (PDF)] [BibTeX] [Project]
A Signal-Processing Framework for Inverse Rendering
Ravi Ramamoorthi and Pat Hanrahan,
SIGGRAPH, pp.117-128, 2001.

[Paper (PDF)] [BibTeX] [Project]
An Efficient Representation for Irradiance Environment Maps
Ravi Ramamoorthi and Pat Hanrahan,
SIGGRAPH, pp.497-500, 2001.

[Paper (PDF)] [BibTeX] [Project] [Video]
Analysis of Planar Light Fields From Homogeneous Convex Curved Surfaces Under Distant Illumination
Ravi Ramamoorthi and Pat Hanrahan,
SPIE Proceedings of Human Vision and Electronic Imaging VI (part of Photonics West, 2001), pp.185-198, 2001.

[Paper (PDF)] [BibTeX] [Project]
Efficient Image-Based Methods for Rendering Soft Shadows
Maneesh Agrawala, Ravi Ramamoorthi, Alan Heirich and Laurent Moll,
SIGGRAPH, pp.375-384, 2000.

[Paper (PDF)] [BibTeX] [Project]
Creating Generative Models from Range Images
Ravi Ramamoorthi and James Arvo,
SIGGRAPH, pp.195-204, 1999.

[Paper (PDF)] [BibTeX] [Project]
Non-Linear Mechanics and Collisions for Subdivision Surfaces
Eitan Grinspun, Fehmi Cirak, Peter Schröder, and Michael Ortiz,
Technical Report, 1999.
[Paper (PDF)] [BibTeX]
Fast Construction of Accurate Quaternion Splines
Ravi Ramamoorthi and Alan H. Barr,
SIGGRAPH, pp.287-292, 1997.

[Paper (PDF)] [BibTeX] [Project]
Dynamic Splines with Constraints for Animation
Ravi Ramamoorthi,
Caltech CS-TR-97-03, 1997.
[Paper (PDF)] [BibTeX] [Project]
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