SIBGRAPI
2007
IEEE
14 years 6 months ago
2007
IEEE
Medical image registration is a difficult problem. Not only a registration algorithm needs to capture both large and small scale image deformations, it also has to deal with glob...
SIBGRAPI
2007
IEEE
14 years 6 months ago
2007
IEEE
This paper proposes a model-based methodology for recognizing and tracking objects in digital image sequences. Objects are represented by attributed relational graphs (or ARGs), w...
SIBGRAPI
2007
IEEE
14 years 6 months ago
2007
IEEE
Visualizations are highly valuable in improving the understanding, as well as the analysis of a variety of physical phenomena. Two such applications can be as a pedagogical tool f...
SIBGRAPI
2007
IEEE
14 years 6 months ago
2007
IEEE
A good shape descriptor is necessary for automatically identifying landmarks on boundaries. Our method of boundary shape description is based on the notion of cscale, which is a n...
SIBGRAPI
2007
IEEE
14 years 6 months ago
2007
IEEE
This paper analyzes the robustness issue in three segmentation approaches: the iterative relative fuzzy object extraction, the watershed transforms (WT) by image foresting transfo...
SIBGRAPI
2007
IEEE
14 years 6 months ago
2007
IEEE
— In the reversible conversion of color images to gray ones, colors are mapped to textures and from the textures the receiver can recover the colors, i.e. one may print a color i...
SIBGRAPI
2007
IEEE
14 years 6 months ago
2007
IEEE
Dental biometrics is used in forensic dentistry to identify or verify persons based on their dental radiographs. This paper presents a method for human identification based on den...
SIBGRAPI
2007
IEEE
14 years 6 months ago
2007
IEEE
This paper presents a new approach to multiple objects tracking that combines particle filters and k-means. The approach has been tested under an important real world situation, ...
SIBGRAPI
2007
IEEE
14 years 6 months ago
2007
IEEE
We address the problem of binary image operator design over large windows by breaking it into two phases. Firstly, we design several operators over small sub-windows of the main w...
SIBGRAPI
2007
IEEE
14 years 6 months ago
2007
IEEE
This paper presents a data hiding technique for printed bicolor documents. It inserts tiny dots, hardly noticeable at normal reading distance, to embed the message. For message ex...