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nobuyuki umetani Nobuyuki Umetani
  Postdoctral researcher
  Disney Research(Switzerland)

  Curriculum Vitae : CV.pdf


About Me

I finished my Ph.D. in September 2012 under the supervision of Prof. Takeo Igarashi. Currently, I am a postdoctoral researcher at Disney Research in Zurich. Before that, I worked for Autodesk Research in Toronto (with Ryan Schmidt) for one year. I am interested in computer graphics, interactive design interface and mechanical engineering, especially : When I was a master's student, I visited the applied mathematic department in TU Delft (Netherland) and worked with Prof. Kees Oosterlee and Prof. Scott MacLachlan. After started my Ph.D, I visited Columbia University in New York and work with Danny Kaufman and Prof. Eitan Grinspun. in another research visit in my Ph.D, I collaborated with Prof. Niloy Mitra at the University Collage London. In addition, I won an internship at Microsoft Research Asia (working with Weiwei Xu and Xin Tong) in February 2012.


flat fit fab FlatFitFab: Interactive Modeling with Planar Sections
James McCrae, Nobuyuki Umetani, Karan Singh
User Interface Software and Technology 2014 (UIST 2014)
[Link] [YouTube]
PBD rod Position-based Elastic Rod
Nobuyuki Umetani, Ryan Schmidt, Jos Stam
Proc. SCA 2014
(Also SIGGRAPH 2014 Talk)
[Project Page] [PDF] [YouTube] [Slides]
branching support Branching Support Structures for 3D Printing
Ryan Schmidt, Nobuyuki Umetani
furniture Guided Exploration of Physically Valid Shapes for Furniture Design (CACM Research Highlights)
Nobuyuki Umetani, Takeo Igarashi, Niloy J. Mitra
Communications of the ACM
airplane Pteromys: Interactive Design and Optimization of Free-formed Free-flight Model Airplanes
Nobuyuki Umetani, Yuki Koyama, Ryan Schdmit, Takeo Igarashi
ACM Transaction on Graphics (SIGGRAPH 2014)
[Project Page] [PDF] [YouTube]
clothing Sensitivity-optimized Rigging for Example-based Real-time Clothing Synthesis
Weiwei Xu*, Nobuyuki Umentani*, Qianwen Chao, Jie Mao, Xiaogang Jin, Xin Tong (*=joint 1st authors)
ACM Transaction on Graphics (SIGGRAPH 2014)
[PDF] [Video] [Slides]
homogenization Macroscopic and Microscopic Deformation Coupling in Up-sampled Cloth Simulation
Shunsuke Saito, Nobuyuki Umetani, Shigeo Morishima
Computer Animation and Virtual Worlds Journal, CASA 2014 Special Issue, 25(3-4), May-August 2014, (to appear).
[YouTube] [Link]
furniture Cross-sectional Structual Analysis for 3D Printing Optimization
Nobuyuki Umetani, Ryan Schmidt
SIGGRAPH Asia 2013 Technical Brief
[Project Page] [PDF] [YouTube] [Slides]
body_avater BodyAvatar: Creating 3-D Avatars with Your Body and Imagination
Yupeng Zhang, Teng Han, Zhimin Ren, Nobuyuki Umetani, Xin Tong, Yang Liu, Takaaki Shiratori, Xiang Cao.
UIST 2013
[Project Page]
heart_valve Bicuspid aortic valves undergo excessive strain during opening:A simulation study
Susumu Katayama, Nobuyuki Umetani, Toshiaki Hisada, Seiryo Sugiura
The Journal of Thoracic and Cardiovascular Surgery, 2013
phd_ut Interactive Design Exploration of Physically Valid Shapes
Nobuyuki Umetani
PhD Dissertation, The University of Tokyo, 2012
furniture Guided Exploration of Physically Valid Shapes for Furniture Design
Nobuyuki Umetani, Takeo Igarashi, Niloy J. Mitra
ACM Transaction on Gracphis (SIGGRAPH 2012)
[Project Page] [PDF] [YouTube]
sketchfluid Real-Time Example-Based Elastic Deformation
Yuki Koyama, Kenshi Takayama, Nobuyuki Umetani, Takeo Igarashi
Proc. SCA 2012
[Project Page]
heartsim A Kinematic Approach for Efficient and Robust Simulation of the Cardiac Beating Motion
Takashi Ijiri, Takashi Ashihara, Nobuyuki Umetani, Takeo Igarashi, Ryo Haraguchi, Hideo Yokota, and Kazuo Nakazawa
[Project Page]
sketchfluid Sketch-based Dynamic Illustration of Fluid Systems
Bo Zhu, Michiaki Iwata, Ryo Haraguchi, Takashi Ashihara, Nobuyuki Umetani, Takeo Igarashi, Kazuo Nakazawa
ACM Transaction on Graphics (SIGGRAPH ASIA 2011)
[Project Page]
fashion Sensitive Couture for Interactive Garment Editing and Modeling
Nobuyuki Umetani, Danny M. Kaufman, Takeo Igarashi, and Eitan Grinspun
ACM Transactions on Graphics (SIGGRAPH 2011)
[Project Page] [PDF] [Video] [Slides] [Bibtex] [Demo Code]
metallophone Designing Custommade Metallophone with Concurrent Eigenanalysis
Nobuyuki Umetani, Jun Mitani, Takeo Igarashi and Kenshi Takayama
New Interfaces for Musical Expression++ (NIME++), Australia, 15-18th June, 2010
ballon A Film Balloon Design System Integrated with Shell Element Simulation
Yohsuke FURUTA, Nobuyuki UMETANI, Jun MITANI, Takeo IGARASHI, and Yukio FUKUI,
the 31st annual conference of the European Association for Computer Graphics (EUROGRAPHICS 2010), short paper, May 3-7, 2010
responsive fem Responsive FEM for Aiding Interactive Geometric Modeling
Nobuyuki Umetani, Kenshi Takayama, Jun Mitani, Takeo Igarashi,
IEEE Computer Graphics & Applications, Volume 31 Issue 5
helmholtz A Multigrid-Based Shifted-Laplacian Preconditioner for a Fourth-Order Helmholtz Discretization
Nobuyuki Umetani, Scott Maclachlan, Kees Oosterlee
Numerical Linear Algebra with Applications,Volume 16, Issue 8, pp603-626,(2008)
heart_valve The sinus of Valsalva relieves abnormal stress on aortic valve leaflets by facilitating smooth closure
Susumu Katayama, Nobuyuki Umetani, Seiryo Sugiura, and Toshiaki Hisada
The Journal of Thoracic and Cardiovascular Surgery, vol.136, no.6, pp.1528-1535,(2008)

     More works can be found in my Japanease web page

Funding Sources


Technical Paper Reviewer:




opening of heart valve

valve velo valve top valve msh
valve_velo.wmv   (845kB) valve_top.wmv   (373kB) valve_msh.wmv   (2473kB)

elastic contact of shin shell in fluid

image of noren1 image of noren2 image of noren3 image of noren4 image of noren5
image of noren6 image of noren7 image of noren8 image of noren9 image of noren10
Movie :   noren.mpg   (820kB)
Movie of FEM mesh :  mesh.mpg   (3220kB)

Muscle-driven dynamic simulation of calf

run_fib0.avi   (72MB) run_fib1.avi   (76MB) run_fib3.avi   (81MB)

     More movies can be found at my Youtube Page


DelFEM:handy environment for finite element analysis (FEA)[Link]


top of national road
At the heighest point of Japanease national road.
(September 2006)
I came all the way from Tokyo by this non-geared ordinary bycicle. It's 2172m above the sea level!!!
top of mt fuji
Sunrise from the top of Mt.Fuji
(August 2006)
ski at matterhorn
Enjoy skiing at Matterhorn
(January 2008)
ski at matterhorn
Programming training at the top of Mt.Fuji
(September 2008)
TU-Delft Library
I studied in Applied Mathematics Dept of TU-Delft in Netherlands as an exchange student.
(April 2007 - March 2008)
Columbia University
I visited computer science departemnt of the Columbia University
(April 2010 - March 2011)

I got my face range-scanned   (at Disney Research Zurich, 2013)


I like reading books. Here is my bookshelf GoodRead