15^th Brazilian Symposium on Computer Graphics and Image processing

 

SIBGRAPI 2002 – Detailed Program

 

7 october 2002 (Monday)

08:00 Registration

08:30-10:00

Tutorial 1 (Room 103)

Robótica: Sistemas Sensorial e Motor. Principais Tendências e Direções

Luiz M. G. Gonçalves (UFRN),

Roberto Marcondes C. Junior (IME-USP)

Tutorial 2 (Room 104)

Image-Based Modeling and Rendering

Manuel Oliveira (Stony Brook University)

Tutorial 3 (Room 105)

Mineração de Imagens: Conceitos, Aplicações e Desafios

Olga Regina Pereira Bellon (UFPR),

Luciano Silva  (UFPR),

Everton Vidal Vieira (UFPR)

10:00-10:30 Intervalo / Pause

10:30-12:00

Tutorial 1(Continuação) (Room 103)

Robótica: Sistemas Sensorial e Motor. Principais Tendências e Direções

Luiz M. G. Gonçalves (UFRN),

Roberto Marcondes C. Junior (IME-USP)

Tutorial 2 (Continuação) (Room 104)

Image-Based Modeling and Rendering

Manuel Oliveira (Stony Brook University)

Tutorial 3 (Continuação) (Room 105)

Mineração de Imagens: Conceitos, Aplicações e Desafios

Olga Regina Pereira Bellon (UFPR),

Luciano Silva  (UFPR),

Everton Vidal Vieira (UFPR)

12:00-14:00 Lunch Pause

14:00-15:30

Tutorial 4 (Room 103)

Volume Visualization

Isabel Manssour (PUCRS),

Carla Freitas (UFRGS)

Tutorial 5 (Room 104)

Modeling and Rendering of Real Environments

Manuel Oliveira (Stony Brook University),

Wagner Corrêa (Princeton),

Cláudio Silva (AT&T)

Tutorial 6 (Room 105)

Graphical Models in Computer Vision

Mauricio Marengoni (Massachussetts College of Liberal Arts)

15:30-16:00 Intervalo / Pause

16:00-17:30

Tutorial 4 (Continuação) (Room 103)

Volume Visualization

Isabel Manssour (PUCRS),

Carla Freitas (UFRGS)

Tutorial 5 (Continuação) (Room 104)

Modeling and Rendering of Real Environments

Manuel Oliveira (Stony Brook University),

Wagner Corrêa (Princeton),

Cláudio Silva (AT&T)

Tutorial 6 (Continuação) (Room 105)

Graphical Models in Computer Vision

Mauricio Marengoni (Massachussetts College of Liberal Arts)

 

18:30 – 19:30

 

Cerimônia de Abertura / Opening Ceremony  (Sala San Polo)

8 October (Tuesday)

08:30-10:00

Technical Session 1 (Veneto room)

 Image Segmentation I

Chair: Thomas Walter Rauber (UFES)

• Substructural segmentation based on regional shape differences

      Alexei M. C. Machado, James C. Gee and Mario F. M. Campos

• Robust Anisotropic Diffusion to Produce Clear Statistical Parametric Map from Noisy MRI Hae Yong Kim and Zang Hee Cho

• Semi-Automatic Identification of Optic Disk by Image Processing for Quantitative Funduscopy

      Wilian Flavio Rigo, Aurelio Paulo Batista da Silva, Thomas W. Rauber

• A Semi-Automatic Surface Reconstruction Framework Based on T-Surfaces and Isosurface Extraction Methods

Edilberto Strauss, Walter Jiménez, Gilson A. Giraldi, Rodrigo Silva, Antonio A. F. Oliveira

 

Technical Session 2 (San Marco room)

 Visualization

Chair: Luiz Henrique de Figueiredo (IMPA)

• DSVOL II - A Distributed Visualization and Sonification Application Communicating via an XML-Based Protocol

      Veridiana Christie, Lucas Salvador, Rosane Minghim, and Haim Levkowitz

• Dynamic Scene Occlusion Culling using a Regular Grid

Harlen Costa Batagelo and Wu, Shin-Ting

• Visualizing Inner Structures in Multimodal Volume Data

Isabel H. Manssour, Sérgio S. Furuie, Silvia D. Olabarriaga, and Carla M. D. S. Freitas

• Point-Based Acquisition and Rendering of Large Real-World Environments

           Wagner T. Correa, Shachar Fleishman, and Claudio T. Silva

 

10:00-10:30 Intervalo / Pause

10:30-12:00

Invited Talk  1 (Venezia 3 room)

Chair: Luiz Marcos G. Gonçalves (UFRN)

HUMANOID VISION

Prof. Dana Ballard, Rochester University – USA

Recent advances in graphics rendering have allowed the modeling of visual
systems for artificial graphics "people" or humanoids. The humanoids exist in a graphics world. They have eye, head and posture movements, and see stereo images of the
rendered world. In order to behave appropriately they must process these images
in real time and use them to control body movements. Sample behaviors are:
walking along a sidewalk in an urban setting while avoiding other pedestrians and
crossing streets safely. The use of humanoids allows the experimentation with
dynamic control strategies that incorporate learning algorithms. In addition, the
artificial environment offers speed and flexibility in algorithm development not
possible in the real-world. The presentation will describe the features of this
new research paradigm.

 

12:00-14:00 Lunch Pause

14:00-15:30

Technical Session 3 (Veneto room)

 Remote Sensing

Chair: Fátima N. Sombra de Medeiros (UFC)

• Evaluating an Adaptive Windowing Scheme in Speckle Noise MAP Filtering

F. N. S. Medeiros, N. D. A. Mascarenhas, R. C. P. Marques, C. M. Laprano

• Multispectral Image Data Fusion Using Projections onto Convex Sets Techniques

Marcia Luciana Silva Aguena e Nelson Delfino D'Avila Mascarenhas

• Non-Parametric Smoothing for Relative Radiometric Correction on Remotely Sensed Data

Maria Luiza F. Velloso, Flávio J. de Souza

• Texture Feature Neural Classifier for Remote Sensing Image Retrieval Systems

Mauricio P. Martins, Lamartine N. F. Guimarães Leila Maria G. Fonseca

 

Technical Session 4 (San Marco Room)

 Computer Vision

Chair: Celso S. Kurashima (UNC)

• Image Moments-Based Structuring and Tracking of Objects

Lourena Rocha, Luiz Velho, and Paulo Cezar Carvalho

• Filtering sparse data with 3D tensorial structuring elements

Marcelo B. Vieira, Matthieu Cord, Paulo P. Martins Jr, Arnaldo de A. Araujo and Sylvie Philipp-Foliguet

• Combining Approximate Geometry with View - Dependent Texture Mapping - A Hybrid Approach to 3D Video Teleconferencing

Celso S. Kurashima, Ruigang Yang, and Anselmo Lastra

• Improvement and Invariance Analysis of Zernike Moments using as a Region-based Shape Descriptor

Ye Bin, Peng Jia-xiong

 

15:30-16:00 Intervalo / Pause

16:00-17:30

Invited Talk  2 (Venezia 3 room)

Chair: Soraia Raupp Musse (UNISINOS)

THE CHALLENGES OF HUMAN FIGURE ANIMATION

Prof. Rick Parent, Ohio State University – USA

One of the 'holy grails' for Computer Animation has been modeling and
animating a synthetic human figure indistinguishable from real life.
There are obvious applications for such a capability in the entertainment
industry. But such technology can also be used in creating more realistic
training environments, more natural user interfaces, and improved educational
material. Great strides have recently been made towards this objective by both
industry and academia. By combining knowledge from such diverse fields as
medicine, art, biomechanics, forensic science, and robotics, there has
been a greater understanding (and appreciation) of the complexity of the human
form. One only has to look at recent films to see how synthetic human figure
modeling and animating have evolved. However, there are still problems to be
overcome in order to satisfy a Turing-like test for synthetic humans.
This talk will review the progress made, the techniques used, the relevant
research at Ohio State, and the issues yet to be resolved.

 

18:00 Video Festival (see detailed program at this link) (San Polo Room)

 Chair: Maria Andréia Formico Rodrigues (UNIFOR)

 

9 October (Wednesday)

08:30-10:00

Technical Session  5 (Veneto room)

 Image Segmentation II

Chair: Roberto de A. Lotufo (UNICAMP)

• Robust Watershed Segmentation using the Wavelet Transform

            C. R. Jung and J. Scharcanski

• Classification of Microstructures by Morphological Analysis and Estimation of the Hydration Degree of Cement Paste in Concrete

            Alexandre Gonçalves Silva, Roberto de A. Lotufo, Franklin César Flores

• IFT-watershed from gray scale marker

            Roberto de A . Lotufo, Alexandre Falcão, Francisco Zampirolli

• Automatic Method for Assessment of Telangiectasia Degreeing by Mathematical Morphology

Franklin César Flores, Roberto de A. Lotufo, Stela Isernhagen, Leonardo Marques Rocha, Alexandre Gonçalves Silva, and Eduardo Faccini Rocha

 

Technical Session 6 (San Marco room)

 Geometric Modelling

Chair: Maria Cristina Ferreira de Oliveira (USP)

• Approximating Parametric Curves with Strip Trees using Affine Arithmetic

            Luiz Henrique de Figueiredo, Jorge Stolfi, and Luiz Velho

• Workspace Awareness in Relaxed WYSIWIS Systems

            Wu, Shin - Ting and Luiz Gonzaga da Silveira Jr.

• Fast and Efficient Projection-based Approach for Surface Reconstruction

            M. Gopi and Shankar Krishnan

• Beta-connection: An Approach to Generate Families of Models from Planar Sections

            Alex J. Q. Vargas, Luis G. Nonato, Rosane Minghim, Maria Cristina F. Oliveira

 

10:00-10:30 Intervalo / Pause

10:30-12:00

Invited Talk  3 (Venezia 1 room)

Chair: Carla dal Sasso Freitas (UFRGS)

PROCEDURAL  AND MULTISCALE MODELS IN GRAPHICS

Prof. Luiz Velho, IMPA - Brazil

This talk will present an overview of the research that has been developed by the invited speaker during his career in Computer Graphics.The emphasis of this talk is on procedural models and multiscale methods applied to different problems in the area.

 

12:00-14:00 Lunch Pause

14:00-15:30

Technical Session 7 (Veneto room)

 Pattern Recognition I

Chair: Edson José Rodrigues Justino (PUC-PR)  

• The Interpersonal and Intrapersonal Variability Influences on Off-Line Signature Verification  Using HMM

            Edson J. R. Justino and Flávio Bortolozzi

• Characterizing and Distinguishing Text in Bank Cheque Images

            José Eduardo Bastos Santos, Bernard Dubuisson and Flávio Bortolozzi

• Evaluating NN and HMM Classifiers for Handwritten Word Recognition

            José Josemar de Oliveira Júnior, João Marques de Carvalho, Cinthia Obladen de Almendra Freitas and Robert Sabourin

• Wavelet-based Compared to Function-based On-line Signature Verification

            Andréa Vergara da Silva and Daniel Santana de Freitas

 

Technical Session 8 (Venezia 1 room)

 Image Synthesis

Chair: João Luiz Comba (UFRGS)

• E-Shell Rendering

            Leonardo M. Rocha and Alexandre X. Falcão

• Re-slicing Tomographic Volumes with Shell Rendering.

            Cesar Augusto de Carvalho Vannini

• Multiscale Moment-Based Painterly Rendering

            Diego Nehab, Luiz Velho

• Towards Local Control for Image-Based Texture Synthesis

            Leandro Tonietto and Marcelo Walter

 

15:30-16:00 Intervalo / Pause

16:00-17:30

Poster session 1 (Veneto room)

   Chair: Herman Martins Gomes (UFCG)

• Image Processing and Analysis to Diagnose Ocular Refraction Errors

A.V. Netto and M.C.F. de Oliveira

• Multiscale Denoising Algorithm Based on the à Trous Algorithm

R.C.P. Marques, C.M. Laprano, and F.N.S. Medeiros

• Linear Features Detection in SAR Images for Urban Analysis

R.C.S. Costa and F.N.S. Medeiros

• Nonextensive Entropic Image Thresholding

I.A. Esquef, M.P. Albuquerque, and M. Albuquerque

• Image segmentation by analysis of scale-space

M.A.G. Carvalho,  M. Croupie, R.A. Lotufo

• Human-Perception Handwritten Character Recognition using Wavelets

S.E. N. Correia, J. M. de Carvalho, R. Sabourin

• A New Paradigm on Fingerprint Classification using Directional Image

S.M.F. Costa, J.M.V. de Oliveira, F.J.R. Fernandez

• A Simple Sketch for 3D Scanning Based on a Rotating Platform and a Web Camera

A. Medeiros, G. Tho, and L.M. Goncalves

• Person Recognition through Eigeneyes Selection based on Fuzzy Distance

J. Ashimine, T.E. de Campos, R.M. Cesar Jr., and I. Bloch

• Localization of Brazilian Vehicles Plates Using Frequency Analysis

B. Borba, C. Vasconcelos, M. Albuquerque

• A Color-Based Retrieval System for Images Collected in the Web

C. J. S. Oliveira, A. de A. Araúdo, D. R. Gomes, C.A. Severiano Jr.

• Regions Tracking in Ventricle MR Sequence Based on Hierarchical Analysis

M.A.G. Carvalho, M. Couprie, R. A. Lotufo

• Automatic Gray Level Thresholding based on Relevant Features for Subjective Decisions

F. M. Lopes, L. A. Consularo

 

Poster session 2 (San Marco room)

   Chair: Marcelo Dreux (PUC-Rio)

• Spherical Maps Visualization

F.M.A. Fonseca, and M.V.A. Andrade

• Medial Axes Neuronal Codification in Topographical Maps

L.F.Costa

• The Color-Code Technique for 3D scanning

F. Franco, A. Oliveira

• A speech orientation animation system to disabled people

J.N. Ulysses, A. Conci

• Shape evolution using restoration forces

A.G.C. Bianchi, H.G.E. Hentschel, L.F. Costa

• Procedural Butterfly Wing Patterns

T.P. Lied, M. Walter

• Determination of oil horizontal spreading coefficients in seawater using analytical methods and digital image processing techniques

J. Falcão, M. Araujo, L.B. Candeias

• A Flexible Model for Simulation of Mammalian Coats

C.E.S. Moreira, M. Walter

• Edugraph: Software to Teach Computer Graphics Concepts

A. L. Battaiola, N.C. Elias, R. de G. Domingues

• Digital Technologies of Learning and Simulation of Virtual

M. M. Laserra, M. T. Longhi, M. Axt

• Battlefield Visualization and Intelligent Agents Decision Support

F.L. de Mello, E. Strauss, A. Oliveira

• Three-dimensional Reconstruction of Urban Scenes from a Single Image

F. Policarpo, E. Azevedo, A. Conci

• Synthesis of Neural Cells using L-System

O. V. Jacques, R.C. Coelho

• A 3D Flight Simulator of Urban Centers for Internet

M.B. Vieira, A. A. Araújo, S. Philipp-Foliguet, M. Cord

• An Interactive System for the Visualization and Measurement Extraction in Medical Images

M.M. Carvalho, R. M. Czekster, I.H. Manssour

• On Validating a Physically-Based Deformable Surface Model

W. Shin-Ting, V.F. Melo

• Resource Management in Computer Graphics Teaching

H. M. A. Bezerra, B. F. F. Karlsson, M. C. A. Gois,  A.C. Frey

• How to Support Collaborative Modelling with the Emerging standard MPEG-4MU

F. V. Duarte, M. Verdi, and R. B.  Araujo

• Animating Virtual Humans Using Hand Postures

F. W. Damásio and S. R. Musse

 

17:30 Plenary (San Marco room)

 

21:00 CEREMONIAL DINNER