PUC-Rio de Janeiro
Sibgrapi 2009 - Technical Papers

Welcome to Sibgrapi 2009, the XXII edition of the Brazilian Symposium on Computer Graphics and Image Processing, held in the city of Rio de Janeiro, Brazil, 11-14 October 2009. Sibgrapi is the most important Brazilian meeting in the areas of Computer Graphics, Image Processing, and Computer Vision. It is held yearly with the sponsorship of the Brazilian Computer Society, since the first meeting in 1988. The proceedings have been published by IEEE Computer Society from 1997 to 208. A novelty in this Sibgrapi Edition is the beginning of a cooperation with the Eurographics Association, increasing the visibility of the Symposium considerably. We received 108 paper submissions, and each paper was evaluated, double-blind, by at least three reviewers. We accepted 44 high-quality papers, representing an acceptance of 40%. It should be mentioned that the overall quality of submissions was very good this year, leading to the nonacceptance of some good quality papers in the borderline region. The richness of this volume can be mainly credited to the authors, who have chosen Sibgrapi to present their work, to the Program Committee members, who helped to guide the reviewing process, and to the reviewers, who dedicated their valuable time to read carefully and evaluate each one of the 108 papers submitted to the conference. We also would like to thank the local organization committee, the several committees in charge for the different technical activities, the invited speakers, the session chairs, and the tutorial instructors. Finally, we are grateful to several institutions which were involved directly or indirectly in the organization of Sibgrapi 2009: Universidade de São Paulo (USP), Universidade Federal do Rio Grande do Sul (UFRGS), Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Universidade Federal Fluminense (UFF), and the Brazilian Computer Society (SBC).

Chairs

Luis Gustavo Nonato and Jacob Scharcanski.
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Work Selection

All full papers are double blindly reviewed by three experts in the topic of the work, and all papers considered high quality will be accepted. As in the previous editions of Sibgrapi, the authors of the best papers can be invited to submit extended versions of their work to international journals in the field (best computer graphics papers have been published in Computer Graphics Forum and The Visual Computer Journal, whereas the best image processing and computer vision papers have been published in Pattern Recognition Letters, Image and Vision Computing and Computerized Medical Imaging and Graphics). In 2009, the three best papers of in the area of computer graphics will be invited to submit to Computer Graphics Forum, and negotiations with other journals are at hand.


Important Dates

  • Submission Deadline: Monday, May 25th, 2009
  • Reviews: Tuesday, June 23th, 2009
  • Notification of Acceptance: Friday, July 3rd, 2009
  • Final Paper Due: Sunday, July 12th, 2009

Author's instruction

See the submission instructions' page.


Oral Presentation

Each accepted paper will be presented orally in technical sessions of 4 papers each. The presentation must fit in 25 minutes, with additional 5 minutes for questions. It may follow the Sibgrapi presentation template. Presenters can bring their own laptop or use the conference computer. In the last case, it is recommended to check the presentation in the break before the session.

No-show Policy

  • At least one of the authors must be registered at the event.
  • Each paper must be presented by an author. In case, none of the authors can be present at the event, the paper must be presented by a qualified person, with the previous agreement of the Session Chair in writing (paper or electronic form).

Failure in meeting the above mentioned no-show policy criteria, will cause the paper to be excluded from the proceedings.

 

Citation format

@inproceedings{key,
  author = {...},
  title = {...},
  year = {2009},
  month = {october},
  booktitle = {Sibgrapi 2009 (XXII Brazilian Symposium on Computer Graphics and Image Processing)},
  editor = {Luis Gustavo Nonato and Jacob Scharcanski},
  address = {Rio de Janeiro, RJ},
  url = {http://www.matmidia.mat.puc-rio.br/Sibgrapi2009}
}

 

Accepted Papers

Graphics, Visualization, and Geometry Processing

TP1 Isosurfacing and Mesh Processing: Monday October 12th, 10:30-12:30
Efficient and High Quality Contouring of Isosurfaces on Uniform Grids
Leonardo Schmitz (UFRGS), João Comba (UFRGS)
doi: 10.1109/Sibgrapi.2009.19 - pp 64-71

Surface Reconstruction: An Improved Marching Triangle Algorithm for Scalar and Vector Implicit Field Representations
Marc Fournier (Louis Pasteur University - Strasbourg 1)
doi: 10.1109/Sibgrapi.2009.14 - pp 72-79

Lossless Compression of Adaptive Multiresolution Meshes
Christoph von Tycowicz (Freie Universität Berlin), Felix Kälberer (Freie Universität Berlin), Konrad Polthier (Freie Universitaet Berlin)
doi: 10.1109/Sibgrapi.2009.53 - pp 80-87

 Optimized Pattern-Based Adaptive Mesh Refinement Using GPU
Ricardo Lenz (UFC), Joaquim Bento Cavalcante-Neto (UFC), Creto Vidal (UFC)
doi: 10.1109/Sibgrapi.2009.37 - pp 88-95
TP2 Modeling and Reconstruction: Monday October 12th, 15:00-17:00
Hermite Interpolation of Implicit Surfaces with Radial Basis Functions (Supplementary Material)
Ives Macêdo (IMPA), João Paulo Gois (Universidade Federal do ABC), Luiz Velho (IMPA)
doi: 10.1109/Sibgrapi.2009.11 - pp 1-8

Scale-Space for Union of 3D Balls (Supplementary Material)
Alex Bordignon (PUC-Rio de Janeiro), Betina Vath (PUC-Rio de Janeiro), Thales Vieira (PUC-Rio de Janeiro), Cynthia O.L. Ferreira (INSA-Toulouse), Marcos Craizer (PUC-Rio de Janeiro), Thomas Lewiner (PUC-Rio de Janeiro)
doi: 10.1109/Sibgrapi.2009.9 - pp 9-16

Legolizer: A Real-Time System for Modeling and Rendering LEGO Representations of Boundary Models (Supplementary Material)
Luis Fernando MS Silva (UFRGS), Vitor Pamplona (UFRGS), João Comba (UFRGS)
doi: 10.1109/Sibgrapi.2009.18 - pp 17-23

RGBN image editing
Thiago Pereira (IMPA), Luiz Velho (IMPA)
doi: 10.1109/Sibgrapi.2009.28 - pp 24-31
TP3 Vector Field, Skeleton, and Hexagonal Tiling: Tuesday October 13th, 14:30-16:30
Fast Medial Axis Transform for Planar Domains With General Boundaries
Francisco Pinto (UFRGS), Carla Freitas (UFRGS)
doi: 10.1109/Sibgrapi.2009.21 - pp 96-103

Support Vectors Learning for Vector Field Reconstrution (Supplementary Material)
Marcos Lage (PUC-Rio de Janeiro), Rener Castro, Fabiano Petronetto (PUC-Rio de Janeiro), Alex Bordignon (PUC-Rio de Janeiro), Geovan Tavares (PUC-Rio de Janeiro), Thomas Lewiner (PUC-Rio de Janeiro), Hélio Lopes (PUC-Rio de Janeiro)
doi: 10.1109/Sibgrapi.2009.20 - pp 104-111

Random Walks for Vector Field Denoising
João Paixão (PUC-Rio de Janeiro), Marcos Lage (PUC-Rio de Janeiro), Fabiano Petronetto (PUC-Rio de Janeiro), Alex Bordignon (PUC-Rio de Janeiro), Sinésio Pesco (PUC-Rio de Janeiro), Geovan Tavares (PUC-Rio de Janeiro), Thomas Lewiner (PUC-Rio de Janeiro), Hélio Lopes (PUC-Rio de Janeiro)
doi: 10.1109/Sibgrapi.2009.13 - pp 112-119

Rectangular hexagonal mesh generation for parametric modeling
Patrícia Pampanelli (Universidade Federal de Juiz de Fora), João Paulo Peçanha (Universidade Federal de Juiz de Fora), Alessandra Matos Campos (Universidade Federal de Juiz de Fora), Marcelo Bernardes Vieira (Universidade Federal de Juiz de Fora), Marcelo Lobosco (Universidade Federal de Juiz de Fora), Sócrates de Oliveira Dantas (Universidade Federal de Juiz de Fora)
doi: 10.1109/Sibgrapi.2009.26 - pp 120-125
TP4 Texture and Rendering: Tuesday October 13th, 17:00-19:00
Synthesis and Transfer of Time-Variant Material Appearance on Images
Djalma Bandeira (UFPE), Marcelo Walter (UFPE)
doi: 10.1109/Sibgrapi.2009.38 - pp 32-39

Geometry Super-Resolution by Example
Thales Vieira (PUC-Rio de Janeiro), Alex Bordignon (PUC-Rio de Janeiro), Thomas Lewiner (PUC-Rio de Janeiro), Luiz Velho (IMPA)
doi: 10.1109/Sibgrapi.2009.10 - pp 40-47

Perspective Contouring in Illustrative Visualization
Jonatas Medeiros (UFRGS), Mario Sousa (University of Calgary), Luiz Velho (IMPA), Carla Freitas (UFRGS)
doi: 10.1109/Sibgrapi.2009.49 - pp 48-55

Salient Clustering for View-dependent Multiresolution Rendering
Rodrigo Barni (UFRGS), João Comba (UFRGS)
doi: 10.1109/Sibgrapi.2009.34 - pp 56-63

Image Processing, Computer Vision, and Pattern Recognition

TP5 Image Analysis and Pattern Recognition I: Monday October 12th, 10:30-12:30
A multi-linear discriminant analysis of 2D frontal face images
Carlos Thomaz (Centro Universitario da FEI), Vagner Amaral (Centro Universitário da FEI), Gilson Giraldi (LNCC), Edson Kitani (USP), Joao Sato (Universidade Federal do ABC), Duncan Gillies (Imperial College London)
doi: 10.1109/Sibgrapi.2009.15 - pp 216-223

Nude Detection in Video using Bag-of-Visual-Features
Ana Paula Lopes (UESC), Sandra Avila (UFMG), Anderson Peixoto (UFMG), Rodrigo Oliveira (UFMG), Marcelo Coelho (Escola Preparatória de Cadetes do Ar), Arnaldo de Albuquerque (UFMG)
doi: 10.1109/Sibgrapi.2009.32 - pp 224-231

Computing the q-index for Tsallis Nonextensive Image Segmentation
Paulo Rodrigues (Centro Universitário da FEI), Gilson Giraldi (LNCC)
doi: 10.1109/Sibgrapi.2009.23 - pp 232-237

An Immune-Inspired Approach for Unsupervised Texture Segmentation using Wavelet Packet Transform
Karinne Silva (Unicamp), Yuzo Iano (Unicamp)
doi: 10.1109/Sibgrapi.2009.30 - pp 238-7244
TP6 Image Processing and Analysis in Medicine and Biometry: Monday October 12th, 15:00-17:00
Microcalcification Detection in Mammograms Using Difference of Gaussians Filters and a Hybrid Feedforward-Kohonen Neural Network
Juan Ramirez-Villegas (Universidad Autónoma de Occidente), Eric Lam-Espinosa (Universidad Autónoma de Occidente), David Ramirez-Moreno (Universidad Autónoma de Occidente)
doi: 10.1109/Sibgrapi.2009.25 - pp 186-193

A Semi-Automatic Method for Segmentation of the Coronary Artery Tree from Angiography
Daniel Lara (UFMG), David Menotti (UFOP), Alexandre Faria (UFMG), Arnaldo de Albuquerque (UFMG)
doi: 10.1109/Sibgrapi.2009.41 - pp 194-201

Extraction and selection of dynamic features of the human iris
Ronaldo Costa (USP), Adilson Gonzaga (USP)
doi: 10.1109/Sibgrapi.2009.16 - pp 202-208

Determination of the reference point of a fingerprint based on multiple levels of representation
Jorge Aching (UFES), Evandro Salles (UFES)
doi: 10.1109/Sibgrapi.2009.35 - pp 209-215
TP7 Mathematical Morphology: Monday October 12th, 15:00-17:00
Segmentation of brain structures by watershed transform on tensorial morphological gradient of diffusion tensor imaging
Leticia Rittner (Unicamp), Simone Appenzeller (Unicamp), Roberto Lotufo (Unicamp)
doi: 10.1109/Sibgrapi.2009.36 - pp 126-132

Analysis of the watershed algorithms based on the Breadth-First and Depth-First exploring methods
André Körbes (Unicamp), Roberto Lotufo (Unicamp)
doi: 10.1109/Sibgrapi.2009.43 - pp 133-140

The use of high resolution images in morphological operator learning
Marta Dornelles (USP), Nina Hirata (USP)
doi: 10.1109/Sibgrapi.2009.39 - pp 141-148

Jump-Miss Binary Erosion Algorithm
Anderson Machado (USP), Ronaldo Hashimoto (USP)
doi: 10.1109/Sibgrapi.2009.27 - pp 149-155
TP8 Image Analysis and Pattern Recognition II: Tuesday October 13th, 14:30-16:30
A Study of the Effect of Illumination Conditions and Color Spaces on Skin Segmentation
Diogo Kuiaski (UTFPR), Hugo Vieira Neto (UTFPR), Gustavo Borba (UTFPR), Humberto Gamba (UTFPR)
doi: 10.1109/Sibgrapi.2009.47 - pp 245-252

Fractal-JSEG: JSEG Using a Homogeneity Measurement based on Local Fractal Descriptor
Karin Komati (UFES), Evandro Salles (UFES), Mario Sarcinelli Filho (UFES)
doi: 10.1109/Sibgrapi.2009.22 - pp 253-260

Automatic discrimination between printed and handwritten text in documents
Lincoln Silva (UFF), Aura Conci (UFF), Angel Sanchez (Universidad Rey Juan Carlos)
doi: 10.1109/Sibgrapi.2009.40 - pp 261-267

A comparative study among pattern classifiers in interactive image segmentation
Thiago Spina (Unicamp), Javier Alexander Montoya-Zegarra (Unicamp), Fábio Faria (Unicamp), Carlos Elias Arminio Zampieri (Unicamp), Sheila Maricela Pinto-Cáceres (Unicamp), Tiago Carvalho (Unicamp), Fabio Andrijauskas, Alexandre Falcão (Unicamp)
doi: 10.1109/Sibgrapi.2009.45 - pp 268-275
TP9 Computer Vision I: Tuesday October 13th, 17:00-19:00
Detecting Buildings in Historical Photographs Using Bag-of-Keypoints
Natália Batista (UFMG), Ana Paula Lopes (UESC), Arnaldo de Albuquerque (UFMG)
doi: 10.1109/Sibgrapi.2009.31 - pp 276-283

Multi-frame motion detection for active/unstable cameras
Mirko Ristivojevic (Tyco International), Janusz Konrad (Boston University)
doi: 10.1109/Sibgrapi.2009.46 - pp 284-290

2D-DCT Distance Based Face Recognition Using a Reduced Number of Coefficients
Derzu Omaia (UFPB), JanKees van der Poel (UFPB), Leonardo Batista (UFPB)
doi: 10.1109/Sibgrapi.2009.52 - pp 291-298

Action Recognition in Video by Covariance Matching of Silhouette Tunnels
Kai Guo (Boston University), Prakash Ishwar (Boston University), Janusz Konrad (Boston University)
doi: 10.1109/Sibgrapi.2009.29 - pp 299-306
TP10 Image Processing: Wednesday October 14th, 9:00-11:00
GSAShrink: A Novel Iterative Approach for Wavelet-Based Image Denoising
Alexandre Levada (Universidade de São Paulo), Nelson Mascarenhas (UFSCar), Alberto Tannús (USP)
doi: 10.1109/Sibgrapi.2009.8 - pp 156-163

A Regularized Nonlinear Diffusion Approach for Texture Image Denoising
Wallace Casaca (Unesp), Maurilio Boaventura (Unesp)
doi: 10.1109/Sibgrapi.2009.33 - pp 164-171

Im age Restoration with Operators Modeled by Artificial Neural Networks
Ana Paula Abrantes de Castro (INPE), José Demisio Simoes Silva (INPE), Elcio Hideiti Shiguemori (IEAv)
doi: 10.1109/Sibgrapi.2009.44 - pp 172-179

Mammography Images Restoration by Quantum Noise Reduction and Inverse MTF Filtering
Larissa dos Santos Romualdo (USP), Marcelo Vieira (USP), Homero Schiabel (USP)
doi: 10.1109/Sibgrapi.2009.12 - pp 180-185
TP11 Computer Vision II: Wednesday October 14th, 9:00-11:00
An Improved Methodology for Image Feature Matching
Vilar da Camara Neto (UFMG), Mario Fernando Campos (UFMG)
doi: 10.1109/Sibgrapi.2009.24 - pp 307-314

Spatio-Temporal Frames in a Bag-of-visual-features Approach for Human Actions Recognition
Ana Paula Lopes (UESC), Rodrigo Oliveira (UFMG), Jussara Almeida (UFMG), Arnaldo de Albuquerque (UFMG)
doi: 10.1109/Sibgrapi.2009.17 - pp 315-321

Learning Discriminative Appearance-Based Models Using Partial Least Squares
William Schwartz (University of Maryland), Larry Davis (University of Maryland)
doi: 10.1109/Sibgrapi.2009.42 - pp 322-329

Stereo Based Structure Recovery of Underwater Scenes from Automatically Restored Images
Erickson Nascimento (UFMG), Mario Fernando Campos (UFMG), Wagner Barros (UFMG)
doi: 10.1109/Sibgrapi.2009.48 - pp 330-337

Technical Committee

  • Adelailson Peixoto da Silva, UFAL - Brazil
  • Alejandro Frery, UFAL - Brazil
  • Alexandre Xavier Falcão, Unicamp - Brazil
  • Alexei Manso C. Machado, PUC/MG - Brazil
  • Anastasios N. Venetsanopoulos, Ryerson U. - Canada
  • Anselmo Montenegro, UFF - Brazil
  • Arnaldo de Albuquerque, UFMG - Brazil
  • Bruno Motta de Carvalho, UFRN - Brazil
  • Carla Freitas, UFRGS - Brazil
  • Christian Hofsetz, Microsoft - USA
  • Claudio Esperança, UFRJ - Brazil
  • Claudio R. Jung - Unisinos - Brazil
  • Claudio Silva, Utah - USA
  • Daniel Aliaga, Purdue Unversity - USA
  • Ducan Gilles, Imperial College of London - UK
  • Fernando Pereira, Instituto Superior TÈcnico - Portugal
  • Gilson Giraldi, LNCC - Brazil
  • Gladimir Baranoski, Waterloo - Canada
  • Gustavo K. Rohde, CMU - USA
  • Gutemberg Guerra-filho, U. of Texas Arlington - USA
  • Haim Levkowitz, Massachusetts Lowell - USA
  • Hélio Cortes Vieira Lopes, PUC-Rio - Brazil
  • Hélio Pedrini, UNICAMP - Brazil
  • Hemerson Pistori, UCDB - Brazil
  • Herman M. Gomes, UFCG - Brazil
  • Hugo Proença, U. da Beira Interior - Portugal
  • Jacques Facon, PUC-PR - Brazil
  • Jan Modersitzki, McMaster U. - Canada
  • Javad Alirezaie, Ryerson U. - Canada
  • Jeff Orchard, U. Waterloo - Canada
  • João Comba, UFRGS - Brazil
  • Joaquim Bento Cavalcante Neto, UFC - Brasil
  • Joceli Mayer, UFSC - Brazil
  • Jos Stam, Autodesk - Canada
  • Konrad Polthier, Freie Universitat Berlin - Germany
  • Leif Kobbelt, RWTH - Germany
  • Luciana Nedel, UFRGS - Brazil
  • Luciano Costa, USP-SC - Brazil
  • Luciano Silva, UFPR - Brazil
  • Luiz Henrique de Figueiredo, IMPA - Brazil
  • Luiz Velho, IMPA - Brazil
  • M. Gopi, Uniersity of California Irvine - USA
  • Manuel Oliveira, UFRGS - Brazil
  • Marcelo Siqueira, UFMS - Brazil
  • Marcelo Walter, UFPE - Brazil
  • Marco Olano, University of Maryland - USA
  • Maria Andréia Formico Rofrigues, UNIFOR - Brazil
  • Maria Cristina de Oliveira, USP-SC - Brazil
  • Nelson Mascarenhas, UFSCar - Brazil
  • Neucimar Leite, UNICAMP - Brazil
  • Nina Hirata, USP - Brasil
  • Olga Bellon, UFPR - Brazil
  • Olga Sorkine, NYU - USA
  • Pierre Poulin, Montreal - Canada
  • Ricardo Torres, UNICAMP - Brazil
  • Robert Fischer, U. of Edinburgh - UK
  • Roberto Cesar, USP - Brazil
  • Roberto Hirata Jr., USP - Brazil
  • Roberto Lotufo, Unicamp - Brazil
  • Sergio Furuie, USP-Ribeirão Preto - Brazil
  • Silvio Jamil F. Guimar„es, PUC-MG - Brazil
  • Soraia R. Musse, PUC-RS - Brazil
  • Thomas Ertl, Stuttgart - Germany
  • Thomas Lewiner, PUC-Rio - Brazil
  • Tibério Caetano, NICTA - Australia
  • Uri Ascher, UBC - Canada
  • Valerio Pascucci, Utah - USA
  • Waldemar Celes, PUC-Rio - Brazil
  • Wu Shin Ting, Unicamp - Brazil

Reviewers

  • A. N. Venetsanopoulos, Ryerson University - Canada
  • Adalberto Schuck Júnior, Universidade Federal do Rio Grande do Sul - Brazil
  • Adelailson Peixoto, Universidade Federal de Alagoas - Brazil
  • Afonso Paiva, Universidade Federal de Uberlândia - Brazil
  • Alejandro Frery, Universidade Federal de Alagoas - Brazil
  • Alessandro B. Oliveira, Universidade Federal do Rio Grande do Sul - Brazil
  • Alex Laier Bordignon, PUC-Rio de Janeiro - Brazil
  • Alexandre Luís Magalhães Levada, Universidade Federal de São Carlos - Brazil
  • Alexei Machado, PUC-MG - Brazil
  • Alvaro L.G.A. Coutinho, Universidade Federal do Rio de Janeiro - Brazil
  • Ana Luísa Dine Martins, Universidade Federal de São Carlos - Brazil
  • Anselmo Montenegro, Universidade Federal Fluminense - Brazil
  • Aravind Krishnaswamy, Adobe Systems Inc. - USA
  • Arnaldo de Albuquerque, Universidade Federal de Minas Gerais - Brazil
  • Arnaldo Lara, Universidade de São Paulo - Brazil
  • Attila Gyulassy, University of Utah - USA
  • Beatriz Andrade, Universidade Federal do Paraná - Brazil
  • Benjamin Hoeferlin, University of Stuttgart - Germany
  • Bradley Kimmel, University of Waterloo - Canada
  • Bruno Carvalho, Universidade Federal do Rio Grande do Norte - Brazil
  • Bruno Travencolo, Universidade de São Paulo - Brazil
  • Carla D. S. Freitas, Universidade Federal do Rio Grande do Sul - Brazil
  • Carlos Santos, Universidade de São Paulo - Brazil
  • Carlos Scheidegger, University of Utah - USA
  • Carlos Thomaz, Centro Universitario da FEI - Brazil
  • Chauã Queirolo, Universidade Federal do Paraná - Brazil
  • Christian Hofsetz, UNISINOS - Brazil
  • Christian Schulz Freie, Universitaet Berlin - Germany
  • Christoph von Tycowicz, Freie Universität Berlin - Germany
  • Christopher Healey, North Carolina State University - USA
  • Clarissa Marques, PUC-Rio de Janeiro - Brazil
  • Claudio Esperança, Universidade Federal do Rio de Janeiro - Brazil
  • Claudio Jung, UNISINOS - Brazil
  • Creto Vidal, Universidade Federal do Ceará - Brazil
  • Daniel Osmari, Universidade Federal do Rio Grande do Sul - Brazil
  • Daniel Welfer, Universidade Federal do Rio Grande do Sul - Brazil
  • David Martins-Jr, Universidade de São Paulo - Brazil
  • David Menotti, Universidade Federal de Ouro Preto - Brazil
  • Denis Henrique Pinheiro Salvadeo, Universidade Federal de São Carlos - Brazil
  • Dimas Martínez Morera, IMPA - Brazil
  • Duncan Gillies, Imperial College - Great Britain
  • Eanes Pereira, Universidade Federal de Campina Grande - Brazil
  • Eduardo A. B. da Silva, Universidade Federal do Rio de Janeiro - Brazil
  • Eduardo Valle, Universidade Federal de Minas Gerais - Brazil
  • Emilio Ashton Vital Brazil, IMPA - Brazil
  • Erik Anderson, University of Utah - USA
  • Fabiano Petronetto, PUC-Rio de Janeiro - Brazil
  • Fabio Dias, ESIEE Paris - France
  • Fabricio Sousa, Universidade de São Paulo - Brazil
  • Fernando Marson, Universidade Regional Integrada - Santo Ângelo - Brazil
  • Fernando Osório, Universidade de São Paulo - Brazil
  • Fernando Pereira, Instituto Superior Técnico - Portugal
  • Francisco Pinto, Universidade Federal do Rio Grande do Sul - Brazil
  • Francisco Rodrigues, Universidade de São Paulo - Brazil
  • Francisco Zampirolli, Universidade Federal do ABC - Brazil
  • Friedemann Roessler, University of Stuttgart - Germany
  • Gerald Banon, INPE - Brazil
  • Gilson Giraldi, Laboratorio Nacional de Computacao Cientifica - Brazil
  • Gladimir Baranoski, University of Waterloo - Canada
  • Guilherme Oliveira, UFRGS - Brazil
  • Guillermo Camara Chavez, Universidade Federal de Minas Gerais - Brazil
  • Gustavo Rohde, Carnegie Mellon University - USA
  • Gutemberg Guerra-Filho, University of Texas at Arlington - USA
  • Haim Levkowitz, University of Massachussetts Lowell - USA
  • Hao Wang, University of Utah - USA
  • Harlen Batagelo, Universidade Estadual de Campinas - Brazil
  • Heitor Ramos, Universidade Federal de Alagoas - Brazil
  • Helio Lopes, PUC-Rio - Brazil
  • Helio Pedrini, Universidade Estadual de Campinas - Brazil
  • Helton Biscaro, Universidade de São Paulo - Brazil
  • Hemerson Pistori, Universidade Católica Dom Bosco (UCDB) - Brazil
  • Herman Gomes, Universidade Federal de Campina Grande - Brazil
  • Hugo Proença, Universidade da Beira Interior - Portugal
  • Ives J. A. Macêdo Júnior, IMPA - Brazil
  • Jacob Scharcanski, Universidade Federal do Rio Grande do Sul - Brazil
  • Jacques Facon, PUC-PR - Brazil
  • Jan Modersitzki, McMaster University - Canada
  • Jander Moreira, Universidade Federal de São Carlos - Brazil
  • Javad Alirezaie, Ryerson University - Canada
  • Javier A. Montoya-Zegarra, Universidade Estadual de Campinas - Brazil
  • Jeff Orchard, University of Waterloo - Canada
  • Jesús Mena-Chalco, Universidade de São Paulo - Brazil
  • Joao Carvalho, Universidade Federal de Campina Grande - Brazil
  • João Comba, Universidade Federal do Rio Grande do Sul - Brazil
  • João do E. S. Batista Neto, Universidade de São Paulo - Brazil
  • João Fernandes, Universidade Federal Fluminense - Brazil
  • Joao Paulo Gois, Universidade Federal do ABC - Brazil
  • Joao Paulo Papa, Universidade Estadual de Campinas - Brazil
  • Joaquim B. Cavalcante-Neto, Universidade Federal do Ceará - Brazil
  • Joceli Mayer, Universidade Federal de Santa Catarina - Brazil
  • Jos Stam, Autodesk, Inc. - Canada
  • Julien Tierny, University of Utah - USA
  • Julio Jacques, PUC-RS - Brazil
  • Klaus Hildebrandt, Freie Universitaet - Germany
  • Leandro Dihl, PUC-RS - Brazil
  • Leandro Fernandes, Universidade Federal do Rio Grande do Sul - Brazil
  • Leif Kobbelt, RWTH Aachen University - Germany
  • Luciana Nedel, Universidade Federal do Rio Grande do Sul - Brazil
  • Luciano Costa, Universidade de São Paulo - Brazil
  • Luciano Silva, Universidade Federal do Paraná - Brazil
  • Luis A. Rivera, Universidade Estadual do Norte Fluminense - Brazil
  • Luis Silva, Universidade Federal do Rio Grande do Sul - Brazil
  • Luiz Gonzaga da Silveira Jr, UNISINOS - Brazil
  • Luiz Henrique de Figueiredo, IMPA - Brazil
  • Luiz Neves, Universidade Federal do Paraná - Brazil
  • Luiz Scheidegger, Universidade Federal do Rio Grande do Sul - Brazil
  • Luiz Velho, IMPA - Brazil
  • M. Gopi, University of California - USA
  • Marc Olano, University of Maryland - USA
  • Marcelo Coelho, Escola Preparatória de Cadetes do Ar - Brazil
  • Marcelo Hashimoto, Universidade de São Paulo - Brazil
  • Marcelo Resende Thielo, HP R\&D - Brazil
  • Marcelo Siqueira, Universidade Federal do Rio Grande do Norte - Brazil
  • Marcelo Walter, Universidade Federal de Pernanbuco - Brazil
  • Marco Alvarez, Utah State University - USA
  • Marconi Barbosa, NICTA - Australia
  • Maria Cristina de Oliveira, Universidade de São Paulo - Brazil
  • Maurício Segundo, Universidade Federal do Paraná - Brazil
  • Michelle Horta, Universidade de São Paulo - Brazil
  • Nelson Mascarenhas, Universidade Federal de São Carlos - Brazil
  • Neucimar Leite, Universidade Estadual de Campinas - Brazil
  • Nina Hirata, Universidade de São Paulo - Brazil
  • Nivando Bezerra, Instituto Federal de Educação, Ciência e Tecnologia do Ceará - Brazil
  • Odemir Bruno, Universidade de São Paulo - Brazil
  • Olga Bellon, Universidade Federal do Paraná - Brazil
  • Olga Sorkine, NYU - USA
  • Pablo Cavalcanti, Universidade Federal do Rio Grande do Sul - Brazil
  • Paulo Cavalcanti, Universidade Federal do Rio de Janeiro - Brazil
  • Paulo Pagliosa, Universidade Federal de Mato Grosso do Sul - Brazil
  • Paulo Rodrigues, Centro Universitário da FEI - Brazil
  • Peer-Timo Bremer & LLNL & USA \ Pierre Poulin, Universite de Montreal - Canada
  • Rafael Torchelsen, Universidade Federal do Rio Grande do Sul - Brazil
  • Ran Gal & Tel Aviv University & Israel \ Ricardo Ferrari, University of Toronto - Canada
  • Ricardo Torres, Universidade Estadual de Campinas - Brazil
  • Richard Parent, Ohio-State University - USA
  • Robert Fisher, University Edinburgh - Great Britain
  • Roberto Hirata Jr., Universidade de São Paulo - Brazil
  • Roberto Lotufo, Universidade Estadual de Campinas - Brazil
  • Rodrigo Minetto, Universidade Estadual de Campinas - Brazil
  • Rodrigo Schramm, Universidade Federal do Rio Grande do Sul - Brazil
  • Ruigang Yang, University of Kentucky - USA
  • Saulo de Tarso Rodrigues, Universidade Federal de Campina Grande - Brazil
  • Sebastian Grottel, University of Stuttgart - Germany
  • Sergio Furuie, Universidade de São Paulo - Brazil
  • Silvio Guimarães, PUC-MG - Brazil
  • Sinesio Pesco, PUC-Rio - Brazil
  • Soraia Musse, PUC-RS - Brazil
  • Talita Perciano, Universidade de São Paulo - Brazil
  • Tenn Chen, University of Waterloo - Canada
  • Thiago Santos, Universidade de São Paulo - Brazil
  • Thomas Engelhardt, University of Stuttgart - Germany
  • Thomas Ertl, University of Stuttgart - Germany
  • Thomas Lewiner, PUC-Rio - Brazil
  • Tiago Etiene, Universidade de São Paulo - Brazil
  • Tibério Caetano, NICTA - Austraia
  • Uri Ascher, UBC - Canada
  • Valguima Odakura, Universidade Federal da Grande Dourados - Brazil
  • Vitor Pamplona, Universidade Federal do Rio Grande do Sul - Brazil
  • Waldemar Celes, Tecgraf, PUC-Rio - Brazil