News and Announcements
November, 22
Article entitled
"Nova Visão Panorâmica"
about the Visorama Project
is published in
Veja magazine.
October, 20-23
Visgraf participation at SIBGRAPI'98
Organizing Commitee Member: Paulo Cezar Carvalho
Courses Chair: Paulo Cezar Carvalho
Video Festival Chairs: Fernando Wagner da Silva and Marcos Vinicius Rayol.
Course:
"De Fourier às Wavelets",
Jonas Gomes, Luiz Velho.
Panel:
Métodos Multi-escala :
"Wavelet Tools for Digital Painting",
Luiz Velho.
Papers:
"Error measures in greedy insertion simplification methods",
A. A. Montenegro, M. Gattass, P. C. P. Carvalho.
"Cache management for real time visualization of 2D data sets",
Andre Matos, Jonas Gomes, Luiz Velho.
"A systems architecture for warping and morphing af graphical objects",
Jonas Gomes, Lucia Darsa, Bruno Costa, Luiz Velho.
"Texturing composite deformable implicit objects",
Ruben Zonenschein, Jonas Gomes, Luiz Velho, Luiz H. de Figueiredo, Mark Tigges and Brian Wyvill.
"Image-based modeling using a two-step camera calibration method",
P. C. P. Carvalho, F. Szenberg and M. Gattass.
Videos:
"2D Textures - An Implicit Drama",
Ruben Zonenschein, Jonas Gomes, Luiz Velho, Luiz H. de Figueiredo.
"Visorama",
Andre Matos, Jonas Gomes, Luiz Velho and Andre Parente.
September, 28
Article entitled
"Na Fronteira do Saber"
is published in
Época magazine.
September, 3
Article entitled
"Visorama: um aparelho recria tempo e espaço"
about the Visorama Project
is broadcasted by
Hipermidia, an information and technology
program from NetBrasil Cable TV.
September
Book published by Morgan-Kaufmann
"Warping and Morphing of Graphical Objects"
Jonas Gomes, Lucia Darsa, Bruno Costa, Luiz Velho
September, 1-5
Visgraf participation at EUROGRAPHICS'98, Lisbon
short-paper : "Motion Reparametrization"
Fernando Wagner da Silva, Jonas Gomes and Luiz Velho
August, 1-15
Two short courses on medical images at IMPA,
organized by the Visgraf project :
"Image
scale and medical images "
Bart M.ter Haar Romeny
see a picture of the participants
of the course 
"Advanced Medical Imaging "
Davi Geiger
see a picture of the participants
of the course 
July, 31
D.Sc. Thesis Defense. Romildo J. da Silva
Title: "Processamento Geometrico de objetos volumetricos"
Advisor: Jonas Gomes
July, 19-24
Visgraf participation at SIGGRAPH'98:
25th International Conference on Computer Graphics and Interactive Techniques;
Orlando Convention Center; Orlando, Fla, USA;
Course: "From Fourier Analysis to Wavelets"
Organizers: Jonas Gomes and Luiz Velho
(siggraph course description)
Technical Sketch: "Visorama: A Complete Virtual Panorama System"
Andre Matos, Luiz Velho, Jonas Gomes, Andre Parente, Heloisa Siffert
July, 9
Master's Thesis Defense. Andre Machado de Matos
.
Title: "Visualization of Virtual Panoramas"
Advisor: Luiz Velho
June, 15-16
Ruben Zonenschein presents a paper at Implicit Surfaces '98:
The Third International Workshop on Implicit Surfaces.
"Controlling Texture Mapping onto Implicit Surfaces with Particle Systems"
Ruben Zonenschein, Jonas Gomes, Luiz Velho, and Luiz Henrique de Figueiredo
June, 8
Article entitled "Juiz Virtual", about the software JuizVirtual,
by Flavio Szenberg and Paulo Cezar Carvalho
in Jornal do Brasil, Caderno de Informatica.
June, 1
Ralph Teixeira, former IMPA student finishes his PhD in Harvard
in the area of computer vision
Title: "Curvature Motions, Medial Axes and Distance Transforms",
Advisor: David Munford
May, 21
Jonas Gomes from the research staff of Visgraf project was nominated
as a member of the Brazilian Academy of Sciences
May, 15
Master's Thesis Defense. Marcos Vinicius Rayol Sobreiro.
Title: "Color and Image Quantization"
Advisor: Jonas Gomes
March, 23-25
Visgraf participation at
Workshop on Image-Based Modeling and Rendering
see a
picture of the participants
of the workshop
March, 3
Master's Thesis Defense. Fernando Wagner da Silva.
Title: "A Motion Capture Based Animation System"
Advisor: Luiz Velho