Nobuyuki Umetani
Autodesk Research
Research Scientist, Head of Design and Fabrication Group
661 University Avenue, Suite 200
Toronto, Ontario, M5G 1M1, Canada+1-(416) 874 8441

December 2017
http://www.nobuyuki-umetani.com/
nobuyuki.umetani@autodesk.com

PERSONAL SUMMARY
I finished my Ph.D. in September 2012 under the supervision of Prof. Takeo Igarashi. Currently, I am a
research scientist at Autodesk Research, leading the Design and Fabrication group. Before that, I
worked for Autodesk Research in Toronto (with Ryan Schmidt) and Disney Research Zürich (with BerndBickel) as a postdoctoral fellow for one year each. I am interested in computer graphics, interactive
design interface and mechanical engineering, especially:• Integrated Design, Simulation and Interaction• Interactive Simulation• Fabrication• Finite Element Methods• Data-driven Aerodynamics modeling and fabrication• Biomechanical Simulation
When I was a master’s student, I visited the applied mathematics department in TU Delft (theNetherlands) and worked with Prof. Scott MacLachlan and Prof. Kees Oosterlee. After I started myPh.D, I visited Columbia University in New York and work with Danny Kaufman and Prof. EitanGrinspun. In another research visit for my Ph.D., I collaborated with Prof. Niloy Mitra at the University
College London. In addition, I won an internship at Microsoft Research Asia (working with Weiwei Xuand Xin Tong) in February 2012.

EDUCATION
Ph.D., Computer Science (October 2009 – September 2012)
The University of Tokyo, Japan
Thesis: Interactive Design Exploration of Physically Valid Shapes
Adviser: Takeo Igarashi
M.S., Frontier Science (April 2006 – September 2009)
The University of Tokyo, Japan
Thesis: Coupling analysis of skeletal muscles and skeletal system using Lagrange multiplier
Adviser: Toshiaki Hisada
B.S., Mechanical Engineering (April 2002 – March 2006)
The University of Tokyo, Japan
Thesis: Analysis of open and close phase of heart valve by changing connectivity in time step
Adviser: Toshiaki Hisada

PUBLICATION (JOURNAL)
Nobuyuki Umetani, Athina Panotopoulou, Ryan Schmidt, Emily Whiting , “Printone: Interactive Resonance Simulation
for Free-form Print-wind Instrument Design”, ACM Transaction on Graphics (SIGGARPH Asia 2016)
Nobuyuki Umetani, Ryan Schmidt , “SurfCuit: Surface Mounted Circuits on 3D Prints”, IEEE Computer Graphics andApplications
Tobias Martin*,Nobuyuki Umetani*,Bernd Bickel (*=joint 1st authors), “OmniAD: Data-driven Omni-directional
Aerodynamics”, ACM Transaction on Graphics (SIGGRAPH 2015), 34(4), July, 2014
Nobuyuki Umetani, Takeo Igarashi, Niloy J. Mitra, “Guided Exploration of Physically Valid Shapes forFurniture Design”, CACM Research Highlights, Communications of the ACM (to appea
Nobuyuki Umetani, Yuki Koyama, Ryan Schmidt, Takeo Igarashi, “Pteromys: Interactive Design andOptimization of Free-formed Free-flight Model Airplanes” ACM Transaction on Graphics (SIGGRAPH
2014), 33(4), July, 2014
Weiwei Xu*, Nobuyuki Umetani*, Qianwen Chao, Jie Mao, Xiaogang Jin, Xin Tong (*=joint 1stauthors), “Sensitivity-optimized Rigging for Example-based Real-time Clothing Synthesis”, ACM
Transaction on Graphics (SIGGRAPH 2014), 33(4), July, 2014
Shunsuke Saito, Nobuyuki Umetani, Shigeo Morishima, “Macroscopic and Microscopic Deformation
Coupling in Up-sampled Cloth Simulation”, Computer Animation and Virtual Worlds Journal, CASA 2014
Special Issue, 25(3-4), May-August, 2014
Susumu Katayama, Nobuyuki Umetani, Toshiaki Hisada, Seiryo Sugiura, "Bicuspid aortic valves undergo
excessive strain during opening: A simulation study", The Journal of Thoracic and CardiovascularSurgery, 2013
Nobuyuki Umetani, Takeo Igarashi, Niloy J. Mitra, "Guided Exploration of Physically Valid Shapes forFurniture Design", ACM Transaction on Graphics (SIGGRAPH 2012), 31(4), August, 2012.
Takashi Ijiri, Takashi Ashihara, Nobuyuki Umetani, Takeo Igarashi, Ryo Haraguchi, Hideo Yokota, andKazuo Nakazawa, “A Kinematic Approach for Efficient and Robust Simulation of the Cardiac BeatingMotion”, PLos One.
Bo Zhu, Michiaki Iwata, Ryo Haraguchi, Takashi Ashihara, Nobuyuki Umetani, Takeo Igarashi, KazuoNakazawa. Sketch-based Dynamic Illustration of Fluid Systems. SIGGRAPH ASIA 2011
Nobuyuki Umetani, Danny Kaufman, Takeo Igarashi, Eitan Grinspun, "Sensitive Couture for Interactive
Garment Editing and Modeling", ACM Transaction on Graphics (SIGGRAPH 2011), 30(4), August, 2011
Nobuyuki Umetani, Kenshi Takayama, Jun Mitani, Takeo Igarashi, "Responsive FEM for Aiding
Interactive Geometric Modeling", Computer Graphics & Applications
Nobuyuki Umetani, Scott Maclachlan, Kees Oosterlee, "A Multigrid-Based Shifted-Laplacian
Preconditioner for a Fourth-Order Helmholtz Discretization”, Numerical Linear Algebra withApplications, Volume 16, Issue 8, pp603-626,(2008)
Susumu Katayama, Nobuyuki Umetani, Seiryo Sugiura, and Toshiaki Hisada, "The sinus of Valsalva
relieves abnormal stress on aortic valve leaflets by facilitating smooth closure", The Journal ofThoracic and Cardiovascular Surgery, vol.136, no.6, pp.1528-1535,(2008)

PUBLICATION (CONFERENCE)
Nobuyuki Umetani, “Exploring Generative 3D Shapes Using Autoencoder Networks”, Siggraph Asia 2017 TechnicalBrief
Rubaiat Habib, Tovi Grossman, Nobuyuki Umetani, George Fitzmaurice, “Motion Amplifiers: Sketching DynamicIllustrations Using the Principles of 2D Animation”, CHI 2016 Conference proceedings
Andrew O. Sageman-Furnas, Nobuyuki Umetani, Ryan Schmidt, “Meltables: Fabrication of Complex 3D Curves byMelting”, SIGGRAPH Asia 2015 Technical Brief

James McCrae, Nobuyuki Umetani, Karan Singh, “FlatFitFab: Interactive Modeling with Planar
Sections”, In Proceedings of the ACM User Interface Software and Technology (UIST ‘14).
Nobuyuki Umetani, Ryan Schmidt, Jos Stam, “Position-based Elastic Rod”, In Proceedings of the 21014
ACM SIGGRAPH/Eurographics Symposium on Computer Animation (SCA ‘14)
Nobuyuki Umetani, Ryan Schmidt, “Cross-sectional Structural Analysis for 3D Printing Optimization”,
SIGGRAPH Asia 2013 Technical Brief
Yupeng Zhang, Teng Han, Zhimin Ren, Nobuyuki Umetani, Xin Tong, Yang Liu, Takaaki Shiratori, Xiang
Cao, “BodyAvatar: Creating freeform 3D avatars using first-person body gestures”, In Proceedings ofthe ACM Symposium on User Interface Software and Technology (UIST ‘12).
Yuki Koyama, Kenshi Takayama, Nobuyuki Umetani, and Takeo Igarashi, “Real-time example-basedelastic deformation”, In Proceedings of the 2012 ACM SIGGRAPH/Eurographics Symposium on
Computer Animation (SCA '12)
Nobuyuki Umetani, Kenshi Takayama, Jun Mitani, Takeo Igarashi, "Designing Custom-madeMetallophone with Concurrent Eigenanalysis", In Proceedings of the 2010 New Interfaces for MusicalExpression (NIME++2010)
Yohsuke Furuta, Nobuyuki Umetani, Jun Mitani, Takeo Igarashi and Yukio Fukui, "A Film Balloon
Design System Integrated with Shell Element Simulation" (short paper), Eurographics 2010

PUBLICATION (BOOK)“Introduction of Finite Element Methods in Computer Graphics”, CG Gems JP 2013, chapter 11 (inJapanese).
“Clothing Simulation and Self-collision Handling using Finite Element Method”, CG Gems JP 2012,
chapter 9 (in Japanese).

PATENT
Techniques for modeling elastic rods in position-based dynamics frameworks, US 20160154906 A1
Techniques for optimizing orientation of models for three-dimensional printing, US 20150154321 A1
Methods, systems, and media for interactive garment modeling and editing, US 20140114620 A1

WORK EXPERIENCE
Research Scientist (March 2015-present)
Autodesk Research, Toronto, Canada
Postdoctoral Researcher (March 2014-February 2015)
Disney Research Zürich, Switzerland
Project Researcher (December 2013-Februrary 2014)
The University of Tokyo/JST ERATO, Japan
Fix-term Research Scientist (November 2012-November 2013)
Autodesk Research, Toronto, Canada
Internship Researcher (February 2012-May 2012)
Microsoft Research Asia, Beijing, China
Supervisor: Dr. Weiwei Xu

Research Fellow (April 2010-October 2012)
Japan Society for the Promotion of Science
Research Assistant (2008 - 2010)
JST ERATO Igarashi Design Interface Project, Japan
Supervisor: Dr. Takeo Igarashi
Chief Developer (2008)
Information – technology Promotion Agency (IPA) Exploratory Software Project, Japan
Supervisor: Dr. Ikuo Takeuchi

AWARDS
Microsoft Research Asia Fellowship (2011)
Best Paper Award (2010)
WISS 2010(Japanese UIST), 18th Workshop on Interactive Systems and Software
Yamanouchi Award (2009)
IPSJ(Japanese ACM), Japanese Symposium on ProgrammingSUPER CREATER (2008)
Information-technology Promotion Agency (IPA) Exploratory Software

TEACHING
University of Toronto, Geometry Processing (guest lecture on 3D Printing), Winter 2017
University of Toronto, Computer Graphics (guest lecture), Fall 2017

RESEARCH VISITS
Computer Science Department, University College London, UK (August2011-November-2011)
Mentor: Niloy J. Mitra
Columbia Computer Graphics Group, Computer Science Department, Columbia University, USA (April2010-March 2011)
Mentor: Eitan Grinspun
Numerical Analysis Group, Delft Institute of Applied Mathematics, Delft University of Technology, The
Netherlands (April 2007-March 2008)
Mentor: Kees Oosterlee

PROFESSIONAL SERVICE
Program Committee
Euro Graphics short paper: 2017,2018
CASA: 2017, 2018
Pacific Graphics: 2015,2016
Symposium on Computer Animation: 2016, 2017
CAD/Graphics: 2017
WSCG: 2017
ACM SIGGRAPH Technical Paper: 2015
ACM SIGGRAPH ASIA Brief and Poster: 2015Associate Editor
The Visual Computer: 2016-2017

Reviewer
SIGGRAPH: 2012 - 2017
SIGGRAPH Asia: 2011 - 2017
TOG: 2015, 2016, 2017
Eurographics: 2012 - 2017
CGF: 2015,2016,2017
CHI: 2017
UIST: 2016, 2017
GrapdiFab: 2016, 2017
3DUI: 2014
IEICE: 2014
Pacific Graphics: 2014, 2015
TVCG: 2014, 2015, 2017
WSCG: 2017
CAD: 2016

INVITED TALK
“Simulation-guided Interactive Exploration of Functional Design”, September 2016,
Host: Stelian Coros: VASC Seminar at Carngie Mellon University“Simulation-guided Interactive Exploration of Functional Design”, May 2016,
Host: Paul Kry“Simulation-guided Interactive Exploration of Functional Design” October 2015
Host: Kun Xu, Pacific Graphics 2015 Invited Talk
“Simulation-Guided Creation: Interactive Simulation to Animate and Fabricate your Own Idea”, June2015,
Host: Marie-Paule Cani:“Expressive modeling : New advances towards the seamless creation of 3Dcontent”“Interactive Design of Functional Shapes”, Schloss Dagstuhl, Germany, September 2014,
Host: Dagstuhl Seminar: "Computational Aspects of Fabrication"“Interactive Authoring for Designing Physically Valid Shapes”, University of Manitoba, May 2013,
Host: Jim Young“Interactive Exploration of Physically Valid Shapes”, Disney Research Zurich, February 2013,
Host: Bernd Bickel“Integration of Design, Simulation and Interaction”, Max Planck Institute Infomatik, October 2011,
Host: Michael Wand“Interactive integration of design and real-time simulation”, New York University, September 2010
Host: Kenshi Takayama

SOFTWARE
DelFEM: http://code.google.com/p/delfem/
This is an environment for solving various partial differential equations (PDE) using finite element
method (FEM). Users can run FEA simulation through simple object oriented C++ problem description.

This library is very fast compare to other software using specially designed linear system solver. Thus
it achieves real-time computation and interaction between shape modeling and numerical simulation. I
developed this library from scratch.
Structural weakness detection for Autodesk MeshMixer®: http://www.meshmixer.com/
During my post-doc in Autodesk, I developed weak structure detection function for Autodesk
MeshMixer. This function detects breakable location in a complicated 3D structure in a fraction of asecond. This function is used for computational vilification of design for 3D printing. This technology
was newly developed and described in a paper “Cross-sectional Structural Analysis for 3D printing”.
Hair simulation for Autodesk Maya, Nucleus®: http://www.autodeskresearch.com/projects/nucleus
During my post-doc in Autodesk, I developed new version of hair simulation component for Nucleus.
Nucleus is a simulation library for Maya, which is visual computing widely used design software in thecomputer animation industry.

Technical Skills
C++, C, OpenGL, Python, TensorFlow, Qt, C#, Fortran, .net, HTML, Subversion(SVN), PHP.
• Cross-platform C++ development, across Mac, Windows and Linux platforms.
• Developing large scale software (over 100 thousands lines)• Distribute and maintain open-source software.