SIBGRAPI'98 Technical Programme

(final version)

Tuesday 20-October-1998

8:00 - 10:00 Registration

Courses (in Portuguese)
 
 

Basic Courses

Course 1 - Auditorium 1 - 14:00-18:00

Intermediate Courses

Course 2 - Auditorium 3 - 8:30-12:30 e 14:00-18:00

Course 3 - Auditorium 1 - 8:30-12:30

I2. De Fourier às Wavelets
Jonas de Miranda Gomes (IMPA) e Luiz Velho (IMPA)

Course 4 - Room 228 - 8:30-12:30

I3. Métodos de agrupamento
Tatiana M. Celinski (UFPR) e Olga R. P. Bellon (UFPR)
 

10:30 - 11:00 - Coffee Break

15:30 - 16:00 - Coffee Break

Coordinators:

    Junior Barrera (USP)
    Roberto Lotufo (UNICAMP)
    Gerald Banon (INPE)

Session 1 - 9:00 - 12:30 - Auditorium 2

10:30 - 11:00 - Coffee Break

Chairperson: Junior Barrera (USP)

• A Mathematical Morphology toolbox for MATLAB
  R. A. Lotufo
• Binary filter estimation for large windows
  E. R. Dougherty (presented by J. Barrera)
• Morphological algorithms for color images based on a generic-programming approach
M. C. D’Ornellas, R. V. den Boomgaard, J.-M. Geusebroek
• An Extension of an algorithm for finding sequential decomposition of erosions and dilations
R. F. Hashimoto
• Translation invariant transformations of discrete random sets
J. Barrera, M. Brun
• Morphological approach of handwritten word skew correction
M. E. Morita, F.Bortolozzi, J. Facon, R. Sabourin

12:30 - 13:30 - Lunch

Session 2 - 13:30 - 15:30 - Auditorium 2

Chairperson: Roberto Lotufo (USP)

• Straight-line removal in boron carbide microscopic images
W. N. Matta, A. de A. Araújo
• Morphological image segmentation applied to video quality assessment
R. de A. Lotufo, W. D. F. da Silva, A. X. Falcão, A. C. F. Pessoa
• Bi-variate pattern spectrum
P. Ghosh, B. Chanda
• Arquitetura de Sistemas Especialistas para Classificação de Imagens Utilizando Operadores Morfológicos
R. M. de Moraes, G. J. F. Banon, S. A. Sandri

15:30 - 16:00 - Coffee Break

Invited Talk 1 - 16:00 - 17:00 - Auditorium 2

Chairperson: Sandra Sandri (INPE)

Levelings and morphological segmentation

Fernand Meyer (Centre de Morphologie Mathématique, France)

Invited Talk 2 - 17:00 - 18:00 - Auditorium 2

Chairperson: Junior Barrera (USP)

Two frontiers in morphological image analysis: differential evolution models and hybrid morphological/linear neural networks

Petros Maragos (School of ECE, Georgia Institute of Technology)

Wednesday 21-October-1998

8:00 - 10:00 Registration

Session 3 - 9:00 - 11:30 - Auditorium 1

Chairpersons: Mário Campos (UFMG), Paulo Cruvinel (EMBRAPA)

• Three-dimensional reconstruction and visualization of tomographic image system using frequential techniques and wavelets
E. R. Minatel, P. E. Cruvinel
• Computer vision-based navigation for autonomous blimp
L. de S. Coelho, M. F. M.Campos, V. Kumar
• Reconstructing a 3D model from range images using radial flow model
R. M. da Silva, S.-T. Wu
• A technique for improvement of linear attenuation coefficient maps obtained by means of x-ray tomography in multiple energies
L. F. Granato, P. E.Cruvinel, F. Cassaro, S. Crestana

Session 4 - 9:00 - 11:30 - Auditorium 2

Chairpersons: Antonio Oliveira (UFRJ), Cláudio Esperança (UFRJ)

• Image coding using irregular subsampling and delaunay triangulation
L. Rila
• Image compression based on a multipoint Taylor series representation
G. Franssens, M. de Maziere, D. Fonteyn, D. Fussen
• Directional interpolation pyramids for still image compression
N. V. Boulgouris, M. G. Strintzis
• Compressão de Imagens usando Transformada Wavelet e Curva de Peano-Hilbert
L. F. de Oliveira, A. A. F. de Oliveira, C. Esperança

Session 5 - 9:00 - 10:00- Auditorium 3

Chairpersons: Nélson Mascarenhas (UFSCAR), Rafael Santos (UNIVAP)

• Adaptive Speckle map filtering for SAR images using statistical clustering
F. N. S. Medeiros, N. D. A. Mascarenhas, L. da F. Costa
• Biased clustering methods for image classification
R. Santos, T. Ohashi, T. Yoshida, T. Ejima

Session 6 - 10:30 - 11:30 - Auditorium 3

Chairpersons: Carla Dal Sasso Freitas (UFRGS), Luiz A.Lima (PETROBRAS)

• Virtual Seismic Interpretation
L. A. Lima, R. Bastos
• Visualization of geological prospecting data
K. Basso, C. M. D. S. Freitas

10:00 - 10:30 - Coffee Break

Invited Talk 3 - 11:30 - 12:30 - Auditorium 2

Chairperson: Luciano da Fontoura Costa (IFSC-USP)

Image denoising, enhancement and segmentation: fast marching methods and geometric evolution

James Sethian (University of California, Berkeley)

12:30 - 14:00 - Lunch

Session 7 - 14:00 - 16:00 - Auditorium 1

Chairpersons: Paulo Cézar Carvalho (IMPA), Antônio Oliveira (UFRJ)

• Image-based modeling using a two-step camera calibration method
P. C. P. Carvalho, F.Szenberg, M. Gattass
• Distortion Correction for digital cameras
Y.-C. Lin, C.-S. Fuh
• Evaluation of three-dimension reconstructions from arbitrary images
R. M. L. O. Mendonça, M.F. M. Campos
• Optimized block disparity estimation in stereo systems using a maximum-flow approach
I. Thomo, S. Malasiotis,M. G. Strintzis
• A control architecture for multi-modal sensory integration
L. M. G. Gonçalves, R. A. Grupen, A. A. F. de Oliveira

Session 8 - 14:00 - 16:00 - Auditorium 2

Chairperson: Carla Dal Sasso Freitas (UFRGS), Paulo Geus (UNICAMP)

• Cache management for real time visualization of 2D data sets
A. Matos, J. Gomes, L.Velho
• Towards perception driven visualization
M. C. F. de Oliveira, R. Minghim, S. M. Tutida, V. C. L. Salvador
• Sonification to support visualization tasks
V. C. L. Salvador, R. Minghim, M. L. Pacheco
• Load balancing for distributed virtual reality systems
T. G. de S. Carneiro, J. N. C. Árabe

Session 9 - 14:00 - 16:00 - Auditorium 3

Chaipersons: Mário Campos (UFMG), Thomas Buck(UFBA)

• Human frequency response functions of harmonic 2,4,8 and 16 cycle angular frequency filters
M. L. de B. Simas, N. A. dos Santos
• Density estimation for MR image elastic matching
A. M. C. Machado, J. C. Gee, M. F. M. Campos
• A unified geometric model for 3D confocal image analysis in cytology
A. Sarti, C. Ortiz, S.Lockett, R. Malladi
• Automated Classification of Masses on Mammography
L. M. Soares, A. Conci, A. D. Vianna

16:00 - 16:30 - Coffee Break

Invited Talk 4 - 16:30 - 17:30 - Auditorium 2

Chairperson: Marcelo Gattass (PUC/RJ)

Modeling and analysing computer animations

Leo Pini Magalhães (Faculdade de Engenharia Elétrica, UNICAMP)

Opening Session - 17:30 - 18:30 - Auditorium 2

Convidados:

Prof. Jacob Palis (diretor do IMPA)
Prof. Carlos José de Lucena (Fundação Padre Leonel França - PUC/RJ)
Dra. Carla Dal Sasso Freitas (UFRGS) - Repr. da SBC
Prof. Marcelo Gattass (Diretor do TECGRAF - PUC/RJ)
Dr. Jonas de Miranda Gomes (Coordenador do VISGRAF - IMPA)
Dr. Antônio Miguel Vieira Monteiro (INPE)
Dr. Gilberto Câmara (INPE) - pres. da Com. Organizadora
Prof. Luciano da Fontoura Costa (IFSC-USP) - pres. da Com. de Programa

Welcome Drinks - 18:30 - 20:00

Thursday, 22 October 1998

Session 10 - 9:00 - 11:30- Auditorium 1

Chairpersons: Antonio Elias Fabri (USP), Luiz Henrique Figueredo (LNCC)

• Error measures in greedy insertion simplification methods
A. Montenegro, M. Gattass, P. C. P. Carvalho
• An algorithm for intersecting and trimming parametric meshes
L. C. G. Coelho, M. Gattass, L. H. de Figueiredo
• Stroking discrete polynomial Bézier curves via point containment paradigm
A. E. Fabris, L. Silva, A. R. Forrest
• A constraint-based algorithm for engineering design
E. Lamounier

Session 11 - 9:00 - 11:30 - Auditorium 2

Chairpersons: Fernando Wagner Silva (IMPA), Waldemar Celes (PUC/RJ)

• A system’s architecture for warping and morphing af graphical objects
J. Gomes, L.Darsa, B. Costa, L. Velho
• Interface: a real time facial animation system
J. D. R. Wey, J. A. Zuffo
• Real time video distribution using publication through a database
I. Diamantis, A. Ntalakas, M. G. Strintzis
• A general specification for scene animation
G. S. Lee
• Efficient asynchronous evolution of physical simulations
W. Celes

Session 12 - 9:00 - 11:30 - Auditorium 3

Chairperson: Roberto Lotufo (UNICAMP)

• Space-variant representation for active object recognition
S. Exel, L. Pessoa
• Rule-based classification procedures related to the unprecisely formulated expert rules
M. W. Kurzynski, J. Sas
• Evolving visual features and detectors
A. Guarda, C. Le Gal, A. Lux
• ECIR – An electronic circuit diagram image recognizer
O. de Jesus, R. de A. Lotufo
• A system for automatic extraction of the user-entered data from bankchecks
A. L. Koerich, L. L. Ling

10:00 - 10:30 - Coffee Break

Invited Talk 5 - 11:30 - 12:30- Auditorium 2

Chairperson: Mário Campos (UFMG)

Three-dimensional reconstruction from a set of video cameras of environments for virtual collaboration

Rujena Bajcsy (Computer and Information Science Department, University of Pennsylvania)

12:30 - 14:00 - Lunch

Session 13 - Short Papers - 14:00 - 16:00 (Poster Presentation)

Chairperson: Gilberto Câmara (INPE)

Note: The short papers will be presented as a poster presentation, where the authors will be present, alongside their poster, for discussion and explanation.

Area: Visualisation and Computer Graphics

• Marching Cubes Multiresolução
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S. S. Andrade, T. A. Buck
• Modelagem e Visualização de Ambientes Naturais em Volumes 3D
E. W. G. Clua, M. Gattass
• Multidimensional Data Visualization in Meteorology
G. Câmara, L. Vinhas, F. A. M. Ii, L. Namikawa, B. Raoult, G. Austad, J. Daabeck

Area:  Computer Vision

• Adapting Geometrical Deformable Models to Multiple Range Images
S. Grosskopf, P. J. Neugebauer
• Towards a coarse real-time stereo fusion based on triple junctions
M. Gonzalo-Tasis, J. Finat
• Image mosaic for the teleoperator of an all-terrain fast mobile robot
L. Tavanti, J. Devars
• Effects of the T-Junction Position and its Spatial Orientation on Perceived Length
S. S. Fukusima, A. I. F. Mendes
• A Technique for Compensating Light Source Direction in Face Recognition Applications
P. S. S. Coelho, A. F. de Oliveira, C. Esperança

Area: Image Processing

• Deformação elástica de contornos e o acesso a banco de imagens por conteúdo
T. A. Buck
• Uma Metodologia para Detecção de Padrões em Imagens de Escoamento Hidráulico
P. S. S. Rodrigues, A. A. Araújo, M. P. Barbosa
• Metodologia Automática para Avaliação do Volume do Ventrículo Esquerdo em Imagens Ecocardiográficas
R. A. F. Mini, M. F. M. Campos
• Tracking Left Ventricular Wall Motion using Active Contour Model: PR-Greedy Algorithm
I. T. Pisa, E. E. S. Ruiz

Session 14 - Panel - 14:00 - 16:00 - Auditorium: 2

Multiscale Models in Image Processing, Computer Graphics and Vision

Coordinators:

Roberto Marcondes Cesar Junior - (IME/USP)
Luciano da Fontoura Costa - (IFSC-USP)

Panelists:

João E. Kogler Jr. (EPUSP/USP)
Luiz Velho (IMPA)
Pedro A. Morettin (IME/USP)
João Fernando Marar (UNESP)

Further Information:

Multiscale Models Panel Homepage

16:00 - 16:30 - Coffee Break

Invited Talk 6 - 16:30 - 17:30 - Auditorium 2

Chairperson: Luiz Velho (IMPA)

A DataStructure for Implicit Models with Warping, Texturing and CSG

Brian Wyvil (Dept.of Computer Science, Univ. of Calgary, Canada)

Plenary Session - 17:30 - 19:00-Auditorium 1

Assembleia Geral da Comissao Especial de Computacao Grafica e Processamento de Imagens da SBC

Chairperson: Carla Freitas (UFRGS)

Special Session - 19:30 - 20:30 - Auditorium 2

SIBGRAPI Video Festival

Coordinator: Fernando Wagner da Silva (IMPA)

Friday 23-October-1998

Session 15 - 9:00 - 11:00 - Auditorium 1

Chairpersons: L.A.Consularo (USP), Aura Conci (UFF)

• Automatic feature selection for biological shape classification in SYNERGOS
O. M. Bruno, R. M. C. Junior, L. A. Consularo, L. da F. Costa
• Comparing the influence of color spaces and metrics in content-based image retrieval
E. Mathias, A. Conci
• Towards optimal ranking metrics
N. Sebe, M. Lew, D. P. Huijsmans
• PhotoPixJ: uma Plataforma para Processamento Digital de Imagens em Java
A. C. R. de Almeida, A. A. S. Sol, A. A. Araújo

Session 16 - 9:00 - 11:00 - Auditorim 2

Chairpersons: Luiz Henrique de Figueiredo (LNCC), L.F.Costa(IFSC-USP)

• Estimating vanishing point from the angular correlation of spectral texture distribution
E. Ribeiro, E. R. Hancock
• Texturing composite deformable implicit objects
R. Zonenschein, J. Gomes, L. Velho, L. H. de Figueiredo, M. Tigges, B. Wyvill
• On the efficacy of texture analysis of crowd monitoring
A. N. Marana, L. F. Costa, R. A. Lotufo, S. A. Velastin

Session 17 - 9:00 - 11:00 - Auditorium 3

Chairpersons: Clésio Tozzi(UNICAMP), Antônio Oliveira (UFRJ)

• Pipeline Stereo Matching in Binary Images
L. M. G. Gonçalves, A. A. F. de Oliveira
• Geração Automática de Mapas de Disparidade em Visão Estéreo
F. M. A. Nogueira, C. L. Tozzi
• Um Dispositivo Automático para Obtenção da Forma 3D e Objetos
J. K. S. de Souza, M. F. M. Campos
• A graph-anisotropic approach to 3-D data segmentation
R. Chaine, S. Bouakaz, D. Vandorpe

11:00 - 11:30 - Coffee Break

Invited Talk 7 - 11:30 - 12:30 - Auditorium 2

Chairperson: Arnaldo Araújo (UFMG)

Visual processing throughout the visual field

Jocelyn Faubert (Ecole d'optométrie, Université de Montréal, Canada)