[Jobinfo] Fwd: [Members] [General] Institute of Computer Graphics and Knowledge Visualisation, Graz University of Technology: 3 year PhD position

-------- Forwarded Message --------
Subject: 	[Members] [General] Institute of Computer Graphics and 
Knowledge Visualisation, Graz University of Technology: 3 year PhD position
Date: 	Tue, 23 Jan 2018 10:57:05 +0100
From: 	eurographics@eg.org
To: 	general@eg.org



*Institute of Computer Graphics and Knowledge Visualisation, Graz 
University of Technology*


  Applications are invited for a 3 year PhD position

The Institute for Computer Graphics and Knowledge Visualization 
<http://www.cgv.tugraz.at/>at Graz University ofTechnology 
<https://www.tugraz.at/home/>(TU Graz), Austria participates since 2012 
in a joint PhD programme 
<https://www.tugraz.at/studium/studienangebot/doktoratsstudien/joint-doctoral-programme-visual-computing-zusammen-mit-nanyang-technological-university-singapore/>with 
the School of Computer Science <http://scse.ntu.edu.sg/> and Engineering 
<http://scse.ntu.edu.sg/>at Nanyang Technological University 
<http://www.ntu.edu.sg/>(NTU),Singapore.

Currently, we offer a 3 year *PhD Position *on this joint program at the 
Institute 
forComputerGraphicsandKnowledgeVisualisation,withafocusonresearchinGeometricModeling,3DComputer 
Graphics and Novel Applications in Visual Computing. The PhD includes a 
one year stay at NTU in Singapore in the second year, while year one and 
three will be spend at TU Graz, Austria. The PhD will be dual degree, 
that is the degree will be both, from TU Graz andNTU.

The application deadline is: *March 1st, 2018*.


    Topic

Computer-aided design (CAD) is the use of computer systems to aid in the 
creation, modification,anal- ysis, or optimization of a design. Most CAD 
software is traditionally based on NURBS spline surfaces. In recent 
years subdivision surfaces are becoming increasingly important for the 
development of high quality surfaces involved in CAD. Since the first 
time they were used in Pixars movie Geris game, they 
hadgreatsuccessintheentertainmentindustryandtheyarenowwidelysupportedinnearlyallmodern 
modeling programs for graphic applications. Their flexibility and the 
fact that some subdivisionsurfaces 
representasupersetofthestandardNon-UniformRationalB-Spline(NURBS)representation(see,e.g., 
[7, <#_bookmark6>4]) <#_bookmark3>easily suggests that they can be the 
future description form of all geometricdata.

A subdivision surface is a method of representing a smooth surface via a 
specification of a coarser 
piecewiselinearpolygonmesh,thecontrolmesh.Asubdivisionschemeisaniterativerefinementwhich 
generates a sequence of finer and finer nets which converge to a smooth 
surface. Despite its simple iterative approach, the analysis of 
subdivision surfaces is hard and it has taken the last 40 years to 
understand exactly what characteristics a subdivision surface has in the 
limit. We now know that most reasonable schemes will have continuous 
tangent plane everywhere, and that it is possible to choose the 
coefficients so that the curvature remains bounded, though not quite 
constant in any region around irregular points [3, 
<#_bookmark2>2,<#_bookmark1>1]. <#_bookmark0>

The successful applicant will be working on aspects of geometry 
processing in order to improve the usability of subdivision surfaces.


    Description of the project:

We are looking into improving the creation of subdivision control meshes 
from point clouds to apply subdivision surfaces in CAD and analysis.

The evolution of 3D scanning devices and innovation in computer 
processing power and storage capacity has sparked a revolution in 
producing big point-cloud datasets. The big point-cloud datasets 
havecausedcomplexityinhandlingsurfacereconstructionandvisualizationsinceexistingalgorithmsare 
notreadilyavailable.Inthisprojectweaimtosolveproblemsinvolvingbigpoint-clouddatasetsfrom3D 
scanningdevicesbyconvertingthedatatoamathematicalrepresentation,namelysubdivisionsurfaces. 
This research can take a range of directions. One path we like to 
explore is applying deep learning to obtain good control meshes. What 
defines a ”good” control mesh depends on the context in which the 
meshwillbeused.Weareinvestigatingwaysinwhichsurfacegeometryfordesignandanalysiscanbe 
modelled in the same framework based on subdivision surfaces 
[5,<#_bookmark4>6]. <#_bookmark5>

The research has multidisciplinary aspects drawing from computer 
science, mathematics, engineering and physics.


    Requirements:

We are seeking an excellent and highly motivated PhD student interested 
in the fields of Computer Graphics, Geometry Processing, Computer Aided 
Design (CAD), Simulation and Analysis.

A master degree in applied/computational mathematics or a closely 
related field is required withexcellent grades. The applicant ideally 
has a good understanding of geometric modelling andprocessing, and/or 
finite element methods. Due to the computational nature of the project, 
programming skills (in Fortran/C++/Matlab)arealsorequired. 
Additionally,somebackgroundinmeshprocessing(and/orcomputer aided 
geometry design) will be highlydesirable.

The selected candidates are expected to join by 1st of April 2018 or as 
soon as possible thereafter.


    Opportunities:

What we offer in exchange:

•AcreativeenvironmentinGraz,oneofthemostbeautifulandlivelycitiesinAustria.

•A young and international team of researchers with an excellent 
workingatmosphere.

•A work environment that is equipped with the newest hardware and 
softwaretechnology.

•The possibility to present your research results at international 
topconferences.

Entry level salary as a PhD researcher is currently 2.731,55 Euro gross, 
which is paid 14x per annum. As a PhD researcher at TU Graz you are also 
entitled to full social benefits.

Freedom to explore your scientific interests in the course of your work 
(within the scope of the project goals).

•Continuing personal and professionaleducation.

The position includes one year stay at Nanyang Technological University 
(NTU), where you will continue your work under excellent local 
supervision. NTU is an autonomous institution based in 
Singapore.Ithasbeenrankedthebestuniversityintheworldunderfiftyyearsofage,accordingto 
QSTop50Under502016-2017<https://www.topuniversities.com/university-rankings/top-50-under-50/2016>andisalso11thintheworldintheQSWorldUniversityRankings 
<https://www.topuniversities.com/university-rankings/world-university-rankings/2018> 
2018 
<https://www.topuniversities.com/university-rankings/world-university-rankings/2018>and 
third in the QS University Rankings: Asia2016. 
<https://www.topuniversities.com/university-rankings/asian-university-rankings/2016>

•You will receive a dual degree from TU Graz and NTUSingapore.


    Contact:

To apply send all necessary documents to

Institute of Computer Graphics and Knowledge Visualization Department of 
Information Technology

Graz University of Technology Ass. Prof. Ursula H. Augsdorfer

Inffeldgasse 16c

A-8010 Graz

Please mail /u.augsdorfer@cgv.tugraz.at / 
<mailto:u.augsdorfer@cgv.tugraz.at>for further details.


  References

[1]U.H.Augsdo¨rfer,N.A.Dodgson,andM.A.Sabin.Removingpolarrenderingartifactsinsubdivisionsurfaces.

/Journal of Graphics, GPU, and Game Tools/, 14, 2009.

[2]U.H.Augsdo¨rfer,T.J.Cashman,N.A.Dodgson,andM.A.Sabin.NumericalcheckingofC1forarbitrarydegree 
subdivision schemes. In /Proceedings of the 13th IMA International 
Conference on Maths of Surfaces XIII/, pages 45–54,2009.

[3]U.H.Augsdo¨rfer,N.A.Dodgson,andM.A.Sabin.Tuningsubdivisionbyminimisinggaussiancurvaturevariation 
near extraordinary vertices. /Computer Graphics Forum/, 25(3):263–272,2006.

[4]T.J.Cashman,U.H.Augsdo¨rfer, N.A.Dodgson, andM.A.Sabin. 
NURBSwithExtraordinaryPoints: High- degree, Non-uniform, Rational 
Subdivision Schemes. /ACM Transactions on Graphics/, 28(3), 2009.

[5]A.Riffnaller-Schiefer,U.Augsdo¨rfer,andD.Fellner.Isogeometricanalysisformodellinganddesign./EG////short 
//Paper/,2015.

[6]A.Riffnaller-Schiefer,U.Augsdo¨rfer,andD.Fellner.Isogeometricshellanalysiswithnurbscompatiblesubdi- 
vision surfaces. /Applied Mathematics and Computation/, 272:139–147,2016.

[7]T.Sederberg, D.Sewell, and M.Sabin. Non-uniform recursive subdivision 
surfaces. In /Proceedings of SIG- GRAPH 1998/, pages 387–394,1998.

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