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I'm a software engineer at Onshape Inc., a CAD startup in Boston. Previously I was a researcher in computer graphics. My research interests span most areas of graphics, with a focus on geometry and applying discrete algorithms. I was a postdoc at Disney Research in Zürich. I did my Ph.D. in the MIT Graphics Group, working with Jovan Popović on making 3D modeling and animation more accessible to non-professionals. My master's was in the algorithms group, working with Erik Demaine. My email is "baran37 AT gmail DOT com".

Research Publications

Graphics


Amit H. Bermano, Derek Bradley, Thabo Beeler, Fabio Zünd, Derek Nowrouzezahrai, Ilya Baran, Olga Sorkine, Hanspeter Pfister, Robert W. Sumner, Bernd Bickel, Markus Gross, "Facial Performance Enhancement Using Dynamic Shape Space Analysis," TOG 2014. [.pdf] [Video (.mp4)] [bib]


Derek Nowrouzezahrai, Ilya Baran, Kenny Mitchell, Wojciech Jarosz, "Visibility Silhouettes for Semi-Analytic Spherical Integration," CGF 2014. [.pdf] [Video (.mp4)] [bib]


Katie Bassett, Ilya Baran, Johannes Schmid, Markus Gross, Robert W. Sumner, "Authoring and Animating Painterly Characters," TOG 2013. [.pdf] [Video (.mp4)] [bib]
The technical focus is on a multidimensional interpolation scheme.


A. Cengiz Öztireli, Ilya Baran, Tiberiu Popa, Boris Dalstein, Robert W. Sumner, Markus Gross, "Differential Blending for Expressive Sketch-Based Posing," SCA 2013. [.pdf] [Video (.mp4)] [bib]


Daniele Panozzo, Ilya Baran, Olga Diamanti, Olga Sorkine, "Weighted Averages on Surfaces," SIGGRAPH 2013. [.pdf] [Video (.mp4)] [bib]


Linjie Luo, Ilya Baran, Szymon Rusinkiewicz, Wojciech Matusik, "Chopper: Partitioning Models into 3D-Printable Parts," SIGGRAPH Asia 2012. [.pdf] [Video (.mp4)] [bib]
Mini user study results: [.pdf]


Alec Jacobson, Ilya Baran, Ladislav Kavan, Jovan Popović, Olga Sorkine, "Fast Automatic Skinning Transformations," SIGGRAPH 2012. [.pdf] [Video (.mp4)] [bib]


Ilya Baran, Philipp Keller, Derek Bradley, Stelian Coros, Wojciech Jarosz, Derek Nowrouzezahrai, Markus Gross, "Manufacturing Layered Attenuators for Multiple Prescribed Shadow Images," Eurographics 2012. [.pdf] [Video (.mp4)] [bib]


Amit Bermano, Ilya Baran, Marc Alexa, Wojciech Matusik, "ShadowPIX: Multiple Images from Self-Shadowing," Eurographics 2012. [.pdf] [Video (.mov)] [bib]


Ilya Baran, Johannes Schmid, Thomas Siegrist, Markus Gross, Robert W. Sumner, "Mixed-Order Compositing for 3D Painting," SIGGRAPH Asia 2011. [.pdf] [Video (.mov)] [bib]
Supplemental proofs: [.pdf]


Michael Holroyd, Ilya Baran, Jason Lawrence, Wojciech Matusik, "Computing and Fabricating Multilayer Models," SIGGRAPH Asia 2011. [.pdf] [Video (.avi, 115MB, use VLC)] [bib][Vimeo]


Alec Jacobson, Ilya Baran, Jovan Popović, Olga Sorkine, "Bounded Biharmonic Weights for Real-Time Deformation," SIGGRAPH 2011. [.pdf] [Video (.mp4)] [bib]


Jiawen Chen, Ilya Baran, Frédo Durand, Wojciech Jarosz, "Real-Time Volumetric Shadows Using 1D Min-Max Mipmaps," I3D 2011. [.pdf] [Video (.mp4, 174MB)] [bib]


Ilya Baran, Jiawen Chen, Jonathan Ragan-Kelley, Frédo Durand, Jaakko Lehtinen, "A Hierarchical Volumetric Shadow Algorithm for Single Scattering," SIGGRAPH Asia 2010. [.pdf] [Video (.mp4, 98MB)] [bib]


Ilya Baran, Jaakko Lehtinen, Jovan Popović, "Sketching Clothoid Splines Using Shortest Paths," Eurographics 2010. [.pdf] [Code] [bib]


Daniel Vlasic, Pieter Peers, Ilya Baran, Paul Debevec, Jovan Popović, Szymon Rusinkiewicz, Wojciech Matusik, "Dynamic Shape Capture using Multi-View Photometric Stereo," SIGGRAPH Asia 2009. [.pdf] [Video (.avi, DivX)] [bib]


Ilya Baran, Daniel Vlasic, Eitan Grinspun, Jovan Popović, "Semantic Deformation Transfer," SIGGRAPH 2009. [.pdf] [Video (.avi, DivX)] [bib]


Daniel Vlasic, Ilya Baran, Wojciech Matusik, Jovan Popović, "Articulated Mesh Animation from Multi-view Silhouettes," SIGGRAPH 2008. (Includes 3D data of Daniel and myself acting like idiots and Tilke dancing.) [.pdf] [Video (.mp4)] [bib]


Ilya Baran, Jovan Popović, "Automatic Rigging and Animation of 3D Characters," SIGGRAPH 2007. [.pdf] [Video (DivX)] [Code] [bib]


Algorithms


Ilya Baran, Erik D. Demaine, Dmitriy A. Katz, "Optimally Adaptive Integration of Univariate Lipschitz Functions," LATIN 2006.
Extended abstract: [.pdf]
Full version: (In special issue of Algorithmica, Volume 50, Issue 2, February 2008) [.pdf] [bib]


Ilya Baran, Erik D. Demaine, Mihai Pătraşcu, "Subquadratic Algorithms for 3SUM," WADS 2005. (Also in special issue of Algorithmica, Volume 50, Issue 4, April 2008) [.pdf] [bib]


My M.Eng. thesis: "Adaptive Algorithms for Problems Involving Black Box Lipschitz Functions," 2004. [.pdf] [bib]


Ilya Baran, Erik D. Demaine, "Optimal Adaptive Algorithms for Finding the Nearest and Farthest Point on a Parametric Black-box Curve," SoCG 2004.
Extended abstract: [.pdf] [bib]
Full version: (In special issue of IJCGA, Volume 15, Issue 4, August 2005) [.pdf]


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