SIBGRAPI
2000
IEEE
14 years 3 months ago
2000
IEEE
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...
SIBGRAPI
2000
IEEE
14 years 3 months ago
2000
IEEE
SIBGRAPI
2000
IEEE
14 years 3 months ago
2000
IEEE
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...
SIBGRAPI
2000
IEEE
14 years 3 months ago
2000
IEEE
SIBGRAPI
2000
IEEE
14 years 3 months ago
2000
IEEE
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 ...
SIBGRAPI
2000
IEEE
14 years 3 months ago
2000
IEEE
SIBGRAPI
2000
IEEE
14 years 3 months ago
2000
IEEE
SIBGRAPI
2000
IEEE
14 years 3 months ago
2000
IEEE
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...
SIBGRAPI
2000
IEEE
14 years 3 months ago
2000
IEEE
SIBGRAPI
2000
IEEE
14 years 3 months ago
2000
IEEE
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...