Marcelo A. Pereyra

Marcelo A. Pereyra
Contact
Information
Department of Mathematics, University of Bristol
University Walk, Bristol, BS8 1TW, UK.
www.stats.bris.ac.uk/ mp12320/
e-mail : [email protected]
Education
Doctor of Philosophy
September 2009 – July 2012
• Ph.D. Statistical Signal Processing, “Statistical modeling and processing of high frequency ultrasound images”, Institut National Polytechnique de Toulouse, France.
Masters Degrees
December 2001 – July 2009
• M.Sc. (M2R) Information, Decision and Control Systems (summa cum laude / 1st class hons),
Institut National des Sciences Appliques de Toulouse, France.
• M.Eng. (Ingénieur) Control Theory and Real Time Systems,
Institut National des Sciences Appliques de Toulouse, France.
• M.Eng (Ingénieur) Electronic Engineering,
Instituto Tecnólogico de Buenos Aires, Argentina.
Research
Interests
Professional
Activities
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Statistical signal processing.
Inverse problems in medical imaging and remote sensing.
Bayesian modeling of time series and images.
Markov Chain Monte Carlo (MCMC).
Hybrid & likelihood free Monte Carlo methods.
Brunel Postdoctoral Research Fellow
School of Mathematics, University of Bristol, Bristol, UK.
September 2012 – present
Postdoctoral Researcher
Institut National Polytechnique de Toulouse, Toulouse, France.
July 2012 – August 2012
Ph.D. Researcher
Institut National Polytechnique de Toulouse, Toulouse, France.
September 2009 – July 2012
Teaching Assistant
September 2009 – present
Institut National des Sciences Appliques de Toulouse, France.
Subjects taught : non-linear Kalman filters and robust (LMI) control theory.
Research Engineer (internship)
EADS Innovation Works (R&D), Toulouse, France
Awards
February 2009 : July 2009
INFOTEL R&D 2009 Award, “Ultrafast GPGPU-based ultrasound propagation simulation”,
awarded by the INSA Toulouse Association of Engineers, Toulouse, 2009.
ITBA R&D 2007 Award, “Blind deconvolution of images distorted by handshake blur”,
awarded by the Buenos Aires Institute of Technology, Buenos Aires, 2007.
Publications :
Journals
M. Pereyra, H. Batatia and S. McLaughlin, “Exploiting information geometry to improve the convergence properties of variational active contours,” submitted to IEEE Spec. Topics Signal Processing.
M. Pereyra, N. Dobigeon, H. Batatia and J.-Y. Tourneret, “Estimating the Granularity Coefficient
of a Potts-Markov Random field within an MCMC algorithm ,” submitted to IEEE Trans. Image
Processing.
M. Pereyra, N. Dobigeon, H. Batatia and J.-Y. Tourneret, “Segmentation of skin lesions in 2D and
3D ultrasound images using a spatially coherent generalized Rayleigh mixture model,” IEEE Trans.
Medical Imaging, to appear.
M. Pereyra and H. Batatia, “Modeling Ultrasound Echoes in Skin Tissues using Symmetric α-Stable
Processes,” IEEE Trans. Ultrason. Ferroelect. Freq. Contr., vol. 59, no. 1, pp. 6072, Jan. 2012.
Publications :
Conferences
Z. Irace, M. A. Pereyra, N. Dobigeon and H. Batatia, “Un modèle de mélange de lois Poisson-Gamma
pour segmenter des images TEP,” in Actes de la Conférence Reconnaissance des Formes et Intelligence
Artificielle (RFIA), Lyon, France, Jan. 2012, in French, to appear
M. Pereyra, N. Dobigeon, H. Batatia and J.-Y. Tourneret, “Un modèle de mélange de lois Rayleigh
généralisées spatialement corrélées pour la segmentation d’échographies cutanées,” in (GRETSI),
Bordeaux, France, Sep. 2011.
M. Pereyra, N. Dobigeon, H. Batatia and J.-Y. Tourneret, “Segmentation of ultrasound images using a
spatially coherent generalized Rayleigh mixture model,” in European Signal Proc. Conf. (EUSIPCO),
Barcelona, Spain, Aug. 2011.
Z. Irace, M. A. Pereyra, N. Dobigeon and H. Batatia, “Bayesian Segmentation of Chest Tumors in
PET Scans using a Poisson-Gamma Mixture Model,” in Proc. IEEE Stat. Signal Process. Workshop
(SSP), Nice, France, June 2011.
M. A. Pereyra, N. Dobigeon, H. Batatia and J.-Y. Tourneret, “Labeling skin tissues in ultrasound
images using a generalized Rayleigh mixture model,” in Proc. IEEE Int. Conf. Acoust., Speech, and
Signal Proc. (ICASSP), Prague, Czech Republic, May 2011.
M. A. Pereyra and H. Batatia, “A Levy Flight Model for Ultrasound in Skin Tissues,” in Proc. IEEE
Eng. Med. Bio. Soc. (EMBC), San Diego (CA), USA, Oct. 2010.
M. A. Pereyra and H. Batatia, “An Alpha-Stable Model for Ultrasound Speckle Statistics in Skin,”
in Proc. IEEE Eng. Med. Bio. Soc. (EMBC), Buenos Aires, Argentina, Sep. 2010.
Publications :
Reports
M. Pereyra, N. Dobigeon, H. Batatia and J.-Y. Tourneret, “Computing the Cramer-Rao bound of
Markov random field parameters : Application to the Ising and the Potts models ,” University of
Toulouse, May 2012.
M. Pereyra, N. Dobigeon, H. Batatia and J.-Y. Tourneret, “Estimating the Granularity Coefficient
of a Potts-Markov Random field within an MCMC algorithm ,” University of Toulouse, Mars 2012.
M. Pereyra, N. Dobigeon, H. Batatia and J.-Y. Tourneret, “Segmentation of skin lesions in 2D and
3D ultrasound images using a spatially coherent generalized Rayleigh mixture model,” University of
Toulouse, December 2011.
Publications :
Other
Attended the 9th IEEE EMBS Int. Summer School on Biomed. Imaging, Berder, France, June 2010.
Co-supervised
M.Eng. PRJs.
Biberidis Nicolas, Buenos Aires Institute of Technology, co-adviced with Ph.D. Hadj Batatia
“Ultrafast K-space simulation of 3D ultrasound images of skin.”, February 2011 - July 2011.
Guest lecturer for IEEE Argentina, Oct. 2009 and Sep. 2010.
Totorica Andres, Buenos Aires Institute of Technology, co-adviced with Ph.D. Hadj Batatia
“Efficient implementation strategies for hybrid Gibbs samplers.”, February 2011 - July 2011.