SIBGRAPI
2005
IEEE
14 years 5 months ago
2005
IEEE
We present a lossless compressor for multispectral images that exploits interband correlations. Each band is divided into blocks, to which a wavelet transform is applied. The wave...
SIBGRAPI
2005
IEEE
14 years 5 months ago
2005
IEEE
Tracking moving objects in video sequence is an important problem in computer vision, with applications several fields, such as video surveillance and target tracking. Most techn...
SIBGRAPI
2005
IEEE
14 years 5 months ago
2005
IEEE
High-fidelity renderings of virtual environments is a notoriously computationally expensive task. One commonly used method to alleviate the costs is to adaptively sample the rend...
SIBGRAPI
2005
IEEE
14 years 5 months ago
2005
IEEE
Images rendered using global illumination algorithms are considered amongst the most realistic in 3D computer graphics. However, this high fidelity comes at a significant comput...
SIBGRAPI
2005
IEEE
14 years 5 months ago
2005
IEEE
SIBGRAPI
2005
IEEE
14 years 5 months ago
2005
IEEE
SIBGRAPI
2005
IEEE
14 years 5 months ago
2005
IEEE
We present an algorithm that creates a mosaic effect for an image in an adaptive and automatic fashion. The algorithm is automatic because it does not need user intervention, exce...
SIBGRAPI
2005
IEEE
14 years 5 months ago
2005
IEEE
In this paper we study the use of computer vision techniques for for underwater visual tracking and counting of fishes in vivo. The methodology is based on the application of a B...
SIBGRAPI
2005
IEEE
14 years 5 months ago
2005
IEEE
The design of W-operators from a set of input/output examples for large windows is a hard problem. From the statistical standpoint, it is hard because of the large number of examp...
SIBGRAPI
2005
IEEE
14 years 5 months ago
2005
IEEE
This paper presents a linear complexity method for real-time stereo matching, in which the processing time is only dependent on the image resolution. Regions along each epipolar l...