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SIBGRAPI
2000
IEEE
9 years 10 months ago
Semi-Regular 4-8 Refinement and Box Spline Surfaces
Abstract. In this paper we introduce a new mesh refinement method for subdivision surfaces. It generates a semiregular 4-direction hierarchical structure from control meshes repres...
Luiz Velho
SIBGRAPI
2000
IEEE
9 years 10 months ago
Ray Path Categorization
Edge detection and image segmentation algorithms usually operate on an image to extract geometrical information based on pixel colors. For ray-traced images, the presence of geomet...
Diego Nehab, Marcelo Gattass
SIBGRAPI
2000
IEEE
9 years 11 months ago
On Estimating Local Geometric Properties of Intersection Curves
This paper presents a simple and robust algorithm for estimating the local geometric properties of intersection curves, namely the tangent, normal, binormal, curvature and torsion ...
Shin-Ting Wu, Osmar Aléssio, Sueli I. Rodri...
SIBGRAPI
2000
IEEE
9 years 11 months ago
Curvature and Orientation Estimation by Neuronal Structures
Júlia Sawaki Tanaka, Edson Tadeu Monteiro M...
SIBGRAPI
2000
IEEE
9 years 11 months ago
A Control Theory Approach for Real-Time Animation of Artificial Agents
Fernando Wagner da Silva, Luiz-Marcos Garcia, Rica...
SIBGRAPI
2000
IEEE
9 years 11 months ago
Image-Based Texture Analysis for Realistic Image Synthesis
We present a method to measure reflectance and texture of surfaces in a one step process. For later use in digital image synthesis it is mandatory to separate the gathered intensi...
Heinz Mayer
SIBGRAPI
2000
IEEE
9 years 11 months ago
Enhancing the Volumetric Approach to Stereo Matching
Italo de Oliveira Matias, Antonio A. F. Oliveira
SIBGRAPI
2000
IEEE
9 years 11 months ago
Handwritten Digits Segmentation Based on Structural Approach
This article deals with a new segmentation approach applied to unconstrained handwritten digits. The novelty of the proposed algorithm is based on the combination of two types of s...
Luiz E. Soares de Oliveira, Edouard Lethelier, Fl&...
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