INRIA - Sophia Antipolis
BP 93, 2004 Route des Lucioles
06902 Sophia Antipolis Cedex
Tel: +33 / 4 92 38 75 68
Fax: +33 / 4 92 38 76 43
Who I am ?
See my cv
I am finishing my Ph. D. Thesis. I am working within the Ariana project. My work
uses some probabilistic tools like spatial point
processes to infer from the altimetry of an urban scene its 3d
simplified map. |
Under this introduction, you will find below what my Ph. D. is precisly about, a presentation that explains my research work and a list of publications and papers I have recently written.
Ph. D. Subject|
Building detection on Digital Elevation Models |
Digital Elevation Models given by automatic processing of aerial images exhibit some geometrical artefacts (misplaced walls, presence of trees or cars etc. .). The objective of this work is to build a simple geometrical model of buildings and to extract objects from the DEM which are close with respect to this geometrical model. The goal of this work is to improve the scene reconstruction.
We choose to use stochastic geometry as our tool. We use marked point processes. These mathematical objects are quite new in image processing and give us the freedom on the kind of object we want to introduce in the model. Moreover, these marked point processes fit in well with our goals as they allow us to add interactions between objects such as alignement constraints on buildings. To optimize the model we use a Reversible Jump Markov Chain Monte Carlo algorithm.
Evaluation of this model technique will be carried out using real data given by IGN (French Mapping Institute).
|This link to the demo will allow you to discover pages presenting my work. This pages use the results I obtained after my first year of Ph. D.|
|October 2001||Invited Seminar||VISTA Project, Irisa Rennes|
|October 2001||Invited Seminar||Celar, DGA (French Defense Agency Lab) Rennes|
|December 2001||Invited Seminar||CWI Amsterdam|
|February 2002||Seminar||INRIA Sophia Antipolis|
|August 2002||Invited Seminar||BRGM (French Geological Survey), Orleans|
|September 2002||Invited Seminar||Alcatel Space Cannes|
|January 2003||Oral Communication||Jacques-Louis Lions Lab (Applied Mathematics), University of Paris VI|
|May 2003||Seminar||INRIA Sophia Antipolis|
|May 2003||Invited Seminar||CTA, DGA (French Defense Agency Lab), Arcueil Paris|
|November 2003||Oral Communication||CNES (French Space Agency)/ DLR (German Space Agency), at DLR, Oberpfaffenoffen|
|December 2003||Invited Seminar||DLR (German Space Agency), Oberpfaffenoffen|
|Jan. 2004||Seminar||MATIS Lab, IGN (French Mapping Institute) Paris|
Youg Authors Award for the following paper :|
A Discontinuity detector for building extraction from Digital Elevation Models by stochastic geometry. M. Ortner, X. Descombes and J. Zerubia, In Proc. of EUSIPCO'04. Vienna, September 2004.
Research Reports :
Invited communications :
Proceedings of French-speaking conferences
French Journal with review :
Proceedings of International Conferences :
International Journal Paper :
Chapter of books :