Proceedings of the AST 2012

Proceedings of the AST 2012
13th Argentine Symposium on Technology

ISSN: 1850-2806

AST, the Argentine Symposium on Technology, provides an open forum for researchers and developers from industry and academia worldwide where they can present and discuss their research on computing technology and its applications.

Topics of Interest

In AST 2012 we expect to stress the theoretical and applied research results on the general area of Computer and Sensor Networks, Imaging and Multimedia Applications and Signal Processing. The topics of interest in AST 2012 include but are not limited to:

  • Digital Image and Video Processing
  • HDTV Applications
  • Multimedia Applications
  • Scientific Visualization
  • Virtual and Augmented Reality
  • Computer Vision
  • Human-computer interaction. Virtual set environments
  • Remote Sensing and Teledetection
  • Multi-sensor Imaging and Sensor Fussion
  • Wired and Wireless Networks
  • Network Performance
  • Computer and Sensor networks
  • Information and Communication Theory
  • Digital Signal Processing
  • Automatic Speech Recognition, Speech Synthesis
  • Affective Computing
  • Identification and Estimation
  • System Modelling and Simulation
  • Linear and Nonlinear Systems
  • Biomedical engineering
  • Bioinformatics
  • Medical Imaging
  • Embedded systems. FPGA and DSP implementations
  • Embedded Systems
  • Robotics

Program Co-Chairs

  • Luis Marrone – UNLP – La Plata
  • Leandro Di Persia – UNL - CONICET, Santa Fé

Program Committee

  • Leonardo Giovaninni (UNL, CONICET)
  • Georgina Stegmayer (UTN FRSF, CONICET)
  • Diego Milone (UNL – Conicet)
  • Carlos Muravchik (UNLP - CIC)
  • Fernando Hugo Gregorio (UNS - CONICET)
  • Juan Carlos Gómez (UNR - CONICET)
  • Jacob Scharcanski (UNFRGS, Brasil)
  • Cecilia Galarza (UBA – CONICET)
  • Ariel Lütenberg(UBA)
  • Gastón Schlotthauer (UNER – CONICET)
  • María Eugenia Torres (UNER – CONICET)
  • Marcelo Risk  (Instituto Tecnológico de Buenos Aires)
  • Hugo Leonardo Rufiner (UNL- CONICET)
  • Alexandre Santos (Universidad de Minho, Portugal)
  • Paulo Martins Carvalho  (Universidad de Minho, Portugal)
  • Dennis Pfisterer (Universidad de Lübeck, Alemania)
  • Stefan Fischer (Universidad de Lübeck, Alemania)
  • Eduardo Sosa (Universidad Nacional de Misiones)
  • Liane Tarouco (UFRGS, Brasil)
  • Fernando Tinetti(UNLP)
  • Roberto Suenaga(Universidad Gastón Dachary)
  • Jorge Ardenghi(Universidad Nacional del Sur)
  • Antonio Castro Lechtaler (UBA)
  • Ignacio Alvarez Hamelin (UBA)
  • Reinaldo Scappini(UTN)
  • Ulises Rapallini(Universidad Autónoma de Entre Ríos)
  • Matías Robles (UNLP)
  • Roberto Vignoni (UNLP)

Additional Reviewers

  • Enrique Marcelo Albornoz (UNL, CONICET)
  • Leandro Vignolo (UNL, CONICET)
  • César Ernesto Martínez (UNL)
  • Diego Tomassi (UNL, CONICET)
  • Néstor Calvo (UNL)
  • Ana Ruedin (UBA)
  • Sergio Burgos (UTN FR Paraná)
  • Jorge Dignani (UNPSJB)
  • John Soldera (UFRGS, Brazil)
  • Ignacio Álvarez Hamelin (UBA, CONICET)
  • Hugo Pagola (UBA)



Besides the regular paper sessions, there are three other activities to be held during AST2012. 

On the first day, Dr. Jacob Scharcanski, from Universidad Federal do Rio Grande do Sul, will present the conference “From Imaging Data to Useful Visual Information and Measurements”, sponsored by the IEEE Distinguished Lecturer Program.

In this talk, we address the problem of extracting relevant information from image data. We also introduce briefly the concepts and techniques often used in the automatic interpretation of phenomena based on imagery, or to make inferences based on models of such imagery data. When modeling and representing imaging measurements, usually we are trying to describe the world (or a real world phenomenon) using one or more images, and reconstruct some of its properties based on imagery data (like shape, texture or color). Actually, this is an ill-posed problem that humans can learn to solve effortlessly, but computer algorithms often are prone to errors. Nevertheless, in some cases computers can surpass humans and interpret imagery more accurately, given the proper choice of data representations (i.e. features), as we discuss in this talk. In order to illustrate this presentation, several applications are discussed, focusing in areas such as medicine, biometrics, pulp and paper, soil sciences, porous media, surveillance, and human-machine interfaces.

Jacob ScharcanskiJacob Scharcanski is an Associate Professor in Computer Science at the Federal University of Rio Grande do Sul (UFRGS), Brasil. He holds a cross appointment with the Department of Electrical Engineering at UFRGS, and also is an Associate Adjunct Professor with the Department of Systems Design Engineering, University of Waterloo, Ontario, Canada. He has authored and co-authored over 100 refereed journal and conference papers, and has contributed to several books on imaging and measurements. In addition to his academic publications, he has several technology transfers to the private sector. Presently, he serves as an Associate Editor for two journals, and has served on dozens of International Conference Committees. Professor Scharcanski is a licensed Professional Engineer, Senior Member of the IEEE, IEEE Multimedia Signal Processing TC Affiliate Member, and serves as Chair of the Technical Committee TC-17 (Materials in Measurements). His areas of expertise are Computer Vision, Imaging Measurements and their Applications.


The second day a Discussion Panel on the subject “New Network Technologies and Services” will be held. The panel will be composed by Ing. Marcelo Cohen: Senior Manager, Architecture & Technology Level 3, Latam. Specialized in Transmission optical networks (DWDM/SDH) and Metro Ethernet. Current postgraduate professor at UBA and ITBA.

Lic. Christian O’Flaherty: Regional Internet Development at Internet Society; promoting Internet access, growth, and sustainability in Latin American and the Caribbean. Formerly IP Technology Regional Manager at IMPSAT FIBER NETWORKS and Internet Operations Director at RETINA, Argentina National Academic Network.

Ing. Claudio Felizia: Advanced Services Regional Manager for America Movil International at Cisco, over Central and South America. Formerly lecturer on Cryptography and Information Security at University of Buenos Aires.


Finally, the third day will be dedicated to a workshop on “Mobility in IPv6 Wireless Networks”, taught by Mg. Matías Robles and Lic. Andrés Barbieri.

Workshop Contents:

  • IPv6 Introduction.
  • Wireless Technologies.
  • Mobile IP in Wireless environments.
  • Mobile IPv6. 
  • Basic Operation
  • Tunnelling.
  • Security.


IPv6 mobile networks will be displayed on virtual machines and in real environments with possibilities of hands on.