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SIBGRAPI
2006
IEEE
13 years 11 months ago
Point set compression through BSP quantization
This work introduces a new compression scheme for point sets. This scheme relies on an adaptive binary space partition (BSP) which takes into account the geometric structure of the...
Alex Laier Bordignon, Thomas Lewiner, Hélio...
SIBGRAPI
2006
IEEE
13 years 11 months ago
A Computer-Assisted Colorization Algorithm based on Topological Difference
Region-based approaches to cel painting typically use shape similarity and topology relations between regions of consecutive animation frames. This paper presents a new colorizati...
Hedlena M. de A. Bezerra, Bruno Feijó, Luiz...
SIBGRAPI
2006
IEEE
13 years 11 months ago
Adapted Dynamic Meshes for Deformable Surfaces
Deformable objects play an important role in many applications, such as animation and simulation. Effective computation with deformable surfaces can be achieved through the use of...
Fernando de Goes, Felipe P. G. Bergo, Alexandre X....
SIBGRAPI
2006
IEEE
13 years 11 months ago
Polygonization of volumetric reconstructions from silhouettes
In this work we propose a method for the polygonization of octree-based reconstructions by dual contouring. Dual contouring is an adaptive method for determining contiguous polygo...
Anselmo Antunes Montenegro, Luiz Velho, Paulo Ceza...
SIBGRAPI
2006
IEEE
13 years 11 months ago
Exploratory visualization based on multidimensional transfer functions and star coordinates
Exploration and analysis of multivariate data play an important role in different domains. This work proposes a simple interface prototype that allows a human user to visually expl...
Alex Laier Bordignon, Rener Castro, Hélio L...
SIBGRAPI
2006
IEEE
13 years 11 months ago
Hardware-assisted Rendering of CSG Models
Current methods that interactively render reasonably complex CSG objects are image based and are severely bandwidth limited. This paper presents a new approach to raytracing CSG o...
Fabiano Romeiro, Luiz Velho, Luiz Henrique de Figu...
SIBGRAPI
2006
IEEE
13 years 11 months ago
Non-Extensive Entropy for CAD Systems of Breast Cancer Images
Recent statistics show that breast cancer is a major cause of death among women in all of the world. Hence, early diagnostic with Computer Aided Diagnosis (CAD) systems is a very ...
Paulo S. Rodrigues, Ruey-Feng Chang, Jasjit S. Sur...
SIBGRAPI
2006
IEEE
13 years 11 months ago
Particle-based non-Newtonian fluid animation for melting objects
Afonso Paiva, Fabiano Petronetto, Thomas Lewiner, ...
SIBGRAPI
2006
IEEE
13 years 11 months ago
Robust adaptive meshes for implicit surfaces
Afonso Paiva, Hélio Lopes, Thomas Lewiner, ...
SIBGRAPI
2006
IEEE
13 years 11 months ago
Increasing statistical power in medical image analysis
In this paper, we present a novel method for estimating the effective number of independent variables in imaging applications that require multiple hypothesis testing. The method ...
Alexei Manso Correa Machado