Authors:
Gilmario Barbosa dos Santos
1
;
Sidney Pinto da Cunha
2
and
Clesio Luiz Tozzi
3
Affiliations:
1
University of State of Santa Catarina, Brazil
;
2
Center of Information Technology Renato Archer, Brazil
;
3
University of Campinas, Brazil
Keyword(s):
B-spline, Snakes, 3D image reconstruction, Camera calibration, Electrical discharges characterization.
Related
Ontology
Subjects/Areas/Topics:
Applications
;
Computer Vision, Visualization and Computer Graphics
;
Geometry and Modeling
;
Human-Computer Interaction
;
Image-Based Modeling
;
Methodologies and Methods
;
Model-Based Object Tracking in Image Sequences
;
Motion and Tracking
;
Motion, Tracking and Stereo Vision
;
Pattern Recognition
;
Physiological Computing Systems
;
Retrieval of 3D Objects from Video Sequences
;
Software Engineering
;
Stereo Vision and Structure from Motion
Abstract:
A new approach for modelling electrical discharges is proposed. To this purpose, an active contour named 3Dsnake is used that is geometrically represented by a B-spline which evolves in 3D space constrained by internal and external energies. More specifically, this external energy come from a pair of images. This new model is much less dependent on determination of homologous points than the approaches found in the literature for recovering 3D geometry of electrical discharges. In addition, the proposal discussed here is capable of tracking the evolution os the electrical discharge taking into account the time dependence between consecutive pairs of frames in two videos.