SIBGRAPI
2007
IEEE
13 years 10 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
13 years 10 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
13 years 10 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
13 years 10 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
13 years 10 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
13 years 10 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
13 years 10 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
13 years 10 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
13 years 10 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
13 years 10 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...