Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

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Dissertation Defense of Florent Brunet

Title: Contributions to Parametric Image Registration and 3D Surface Reconstruction


This thesis deals with the modelling and the estimation of parametric functions in computer vision. Three main topics are considered and are related by a single objective: the reconstruction of an arbitrary surface from images taken in an arbitrary deformable environment. The three main topics considered in this work are:

Range surface fitting: we consider the problem of fitting a parameteric surface such as a B-spline to a set of range data obtained with, for instance, a time-of-flight cameras. We take a particular interest in the problem of automatically determining the hyperparameters. We also propose methods to cope with discontinuities and heteroskedastic noise.

Image registration: several problems related to image registration are considered. In particular, we propose a new method for direct image registration that does not need a region of interest. We also propose new ways of automatically selecting the hyperparameters in feature-based image registration. We finally propose a new model of deformation, the NURBS-warp, that copes with perspective effects in the imaging process.

Reconstruction of inextensible surfaces from monocular videos: the last part of this thesis tackles the difficult problem of reconstructing a deformable surface in a monocular setup. We propose two new approaches to solve this problem ; The first one is a convex formulation of some common assumptions ; The second one is a new way of enforcing the inextensibility constraint in a parametric framework.

Advisors: Pr. Adrien Bartoli Pr. Nassir Navab Pr Rémy Malgouyres

Examiner: Pr. Laurent Sarry

Referees: Pr. Joachim Hornegger Dr. Lourdes Agapito Pr. Etienne Mémin

Date: Tuesday, November 30th 2010

Time: 3:00 pm (45min presentation + questions asked by the committee)


Title: Dissertation Defense of Florent Brunet
Date: 30 November 2010
Abstract: Florent Brunet will defend his PhD thesis with the title „Contributions to Parametric Image Registration and 3D Surface Reconstruction”.
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Edit | Attach | Refresh | Diffs | More | Revision r1.2 - 26 Nov 2010 - 15:31 - AminAhantab

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