17 search results - page 3 / 4 » sibgrapi 2003 |
SIBGRAPI
2003
IEEE
14 years 21 days ago
2003
IEEE
Abstract. Authentication watermarking is a hidden data inserted into an image, in order to detect any alterations. It seems to be almost impossible to design a really secure authen...
SIBGRAPI
2003
IEEE
14 years 21 days ago
2003
IEEE
Creating models of real scenes is a complex task for which the use of traditional modelling techniques is inappropriate. For this task, laser rangefinders are frequently used to s...
SIBGRAPI
2003
IEEE
14 years 21 days ago
2003
IEEE
We report on new results on the use of Algebraic Reconstruction Techniques (ART) for reconstructing from helical cone-beam Computerized Tomography (CT) data. We investigate two va...
SIBGRAPI
2003
IEEE
2003
IEEE
Using Efficient Visual Exploration Techniques to Evaluate Features for Content-Based Image Retrieval
14 years 21 days ago
This paper presents a novel visual approach to evaluate, in a fast and effective way, the development of new image feature extraction techniques concerning content-based image ret...
SIBGRAPI
2003
IEEE
14 years 21 days ago
2003
IEEE
Content-Based Image Retrieval (CBIR) systems have been developed aiming at enabling users to search and retrieve images based on their properties such as shape, color and texture....