| Full text | |
| Author(s): |
Morimitsu, Henrique
;
Bloch, Isabelle
;
Cesar-, Roberto M., Jr.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | COMPUTER VISION AND IMAGE UNDERSTANDING; v. 159, p. 16-pg., 2017-06-01. |
| Abstract | |
In this paper, we propose a novel approach for exploiting structural relations to track multiple objects that may undergo long-term occlusion and abrupt motion. We use a model-free approach that relies only on annotations given in the first frame of the video to track all the objects online, i.e. without knowledge from future frames. We initialize a probabilistic Attributed Relational Graph (ARG) from the first frame, which is incrementally updated along the video. Instead of using the structural information only to evaluate the scene, the proposed approach considers it to generate new tracking hypotheses. In this way, our method is capable of generating relevant object candidates that are used to improve or recover the track of lost objects. The proposed method is evaluated on several videos of table tennis, volleyball, and on the ACASVA dataset. The results show that our approach is very robust, flexible and able to outperform other state-of-the-art methods in sports videos that present structural patterns. (C) 2016 Elsevier Inc. All rights reserved. (AU) | |
| FAPESP's process: | 14/50135-2 - Learning salient elements from videos using structural and temporal information |
| Grantee: | Roberto Marcondes Cesar Junior |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 11/50761-2 - Models and methods of e-Science for life and agricultural sciences |
| Grantee: | Roberto Marcondes Cesar Junior |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 13/08258-7 - High-level event characterization using graphs |
| Grantee: | Henrique Morimitsu |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |
| FAPESP's process: | 12/09741-0 - Multiview object detection using keygraphs |
| Grantee: | Henrique Morimitsu |
| Support Opportunities: | Scholarships in Brazil - Doctorate |