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SIBGRAPI
2003
IEEE
14 years 4 months ago
A Topological Framework for Advancing Front Triangulation
In this paper we study advancing front methods for surface reconstruction. We propose a topological framework based on handlebody theory to implement such methods in a simple and r...
Esdras Soares de Medeiros Filho, Luiz Velho, H&eac...
SIBGRAPI
2003
IEEE
14 years 4 months ago
A Sketch-Based Collaborative Design System
We present a system for collaborative conceptual design that allows users potentially located in geographically distant areas to cooperate by sketching, exploring and modifying the...
Zhe Fan, Ma Chi, Manuel M. Oliveira
SIBGRAPI
2003
IEEE
14 years 4 months ago
Image Feature Extraction for Application of Biometric Identification of Iris - A Morphological Approach
This paper presents a new approach based on morphological operators for application of biometric identification of individuals by segmentation and analysis of the iris. Algorithms ...
Joaquim de Mira Jr., Joceli Mayer
SIBGRAPI
2003
IEEE
14 years 4 months ago
Learning-Based versus Model-Based Log-Polar Feature Extraction Operators: A Comparative Study
In this paper, we compare two distinct primal sketch feature extraction operators: one based on neural network feature learning and the other based on mathematical models of the f...
Herman Martins Gomes, Robert B. Fisher
SIBGRAPI
2003
IEEE
14 years 4 months ago
A Non-Self-Intersection Douglas-Peucker Algorithm
The classical Douglas-Peucker line-simplification algorithm is recognized as the one that delivers the best perceptual representations of the original lines. It is used extensivel...
Shin-Ting Wu, Mercedes Rocío Gonzales M&aac...