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Sunday, May 2, 2010

Netherlands: PhD Position Adaptive and directional local processing in image processing, Eindhoven University of Technology

Overview

The PhD student will initially work at Eindhoven University of Technology for one year, and subsequently spend two years at resp. Technion Israel Institute of Technology Haifa (Israel) and Ecole Polytechnique Paris (France).

Program Description

High angular resolution diffusion imaging (HARDI) and Diffusion Tensor Imaging (DTI) are popular magnetic resonance imaging techniques for imaging fields of angular water diffusivity profiles in fibrous tissues such as brain white matter and muscle. So far research has been done on constructing diffusion processes on DTI and HARDI data, yielding multi-scale representations as a pre-processing step for robust fibre tracking. These approaches suffer from an unnatural decoupling of position and orientation. Consequently, these methods fail at the interesting locations where fibres cross and bifurcate. Instead, enhancement of elongated structures can be achieved via left-invariant diffusions and Hamilton Jacobi equations on the group of both rotations and translations via invertible orientation scores to properly deal with crossing fibers in HARDI or DTI-data. The idea is to locally diffuse along disentangled fiber-fragments, while simultaneously eroding orthogonally to them in the joined domain of positions and orientations.

Preliminary studies on medical data sets indicate that if such evolutions are applied on HARDI-data they yield clear enhancement of fibers, whereas if they are applied to DTI-data they may yield better results than unprocessed HARDI-data. Therefore the proposed technique could provide an alternative to expensive high resolution scanning.


Furthermore, we would like to apply these fiber-enhancing techniques to investigate extensions of geodesic active contours to the coupled space of positions and orientations.

Research Field

Mathematics - Computational mathematics

Benefits

Standard Marie Curie ITN contract for a PhD

Comment/web site for additional job details
Contact data 3 partners

1) TU/e Eindhoven University of Technology TU/e
Den Dolech 2
5600 MB
Eindhoven, the Netherlands.
Email: L.M.J.Florack@tue.nl, R.Duits@tue.nl
Phone +31-402475377 / +31-402473037

2) Technion
Haifa 32000, Israel
E-mail: ron@cs.technion.ac.il
Phone: +972-4-8294616
Phone: +972-4-8294898 (Yana Katz, R&A Assistant)

3) Ecole Polytechnique Paris
91128 Palaiseau Cedex,
France
Email: antonin.chambolle@polytechnique.fr
tél : +33 (0) 1 69 33 46 19
fax : +33 (0) 1 69 33 46 46

Application Deadline
31/05/2010

Eindhoven University of Technology

Mathematics & Computer Science/ Applied Analysis (CASA)
Academic
Den Dolech 2
5600 MB - Eindhoven
Noord-Brabant - NETHERLANDS
phone +3140-247303037 / +3140-247302869
mobile +31610901749
fax +3140-247
email R.Duits@tue.nl
http://w3.tue.nl/nl/


Please kindly mention Scholarization.blogspot.com when applying for this position


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1 comments:

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Scholarship Team: Ph.D Scholar Krisstofferson Joniel Scholarship Adviser, PhD Scholar Chea Vitom Scholarship Adviser and Senior Lecturer, PhD Scholar Rebecca T. Dalisay Scholarship Adviser, Ph.D Student Jiao Wang Scholarship Coordinator, MSc Student Dennise Maricel Scholarship Coordinator