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ID switch |
MOTA (%) |
Original CEM |
Table 3 |
Results—indoor thermal sequence 3 |
TP (%) |
FP (%) |
FN (%) |
ID switch |
MOTA (%) |
Original CEM |
Table 4 |
Results—outdoor RGB sequence |
TP (%) |
FP (%) |
FN (%) |
ID switch |
MOTA (%) |
Original CEM |
Table 5 |
Results—courtyard thermal sequence |
TP (%) |
FP (%) |
FN (%) |
ID switch |
MOTA (%) |
Original CEM |
This subsequence is a typical example of how an occlusion between two players is handled. As shown in Fig. 7, the original tracker loses one of the targets (light blue in the top right corner) between frame 10 and 25. From frame 28, a new ID is assigned to that person. The proposed constrained tracker tracks both targe... |
7.6 GT numbers |
To analyse the influence of errors in the counting algorithm and the possibilities of the algorithm with a perfect counting result, we now compare the results from Section 7.5 with the results using ground truth numbers as input to the constrained algorithm. These results are presented in Table 6. |
Table 6 |
Comparison between the MOTA results with automatic counting results and ground truth counting results as input |
Indoor thermal 1 (%) |
Indoor thermal 2 (%) |
Indoor thermal 3 (%) |
Outdoor RGB (%) |
Courtyard thermal (%) |
Ours - aut. counting |
Ours - GT counting |
The results show that using a ground truth number as input to the tracking algorithm improves MOTA 0.16–3.52% on three sequences, while it gives a lower MOTA with 1.09–1.80% on the remaining two sequences. This indicates that errors in the counting algorithm do not have a large effect on the tracking result, as it is o... |
8 Conclusion |
This work focuses on a robust tracking algorithm for team sports activities. We have shown how to combine an automatic counting algorithm with an offline tracking algorithm in order to constrain the number of tracks and improve reliability. The method is tested on four sports sequences from both indoor and outdoor scen... |
We plan to test the proposed method on several other types of team sports and refine the algorithms accordingly. For future work in this area, we will consider integrating an automatically recognised sports type, as prior context knowledge on the specific sports type may inform the tracker in ambiguous situations. |
Authors’ contributions |
RG has designed the method, performed the experiments, and prepared this manuscript. TBM has been supervising the work and revising the paper. Both authors read and approved the final manuscript. |
Competing interests |
The authors declare that they have no competing interests. |
Publisher’s Note |
Authors’ Affiliations |
Visual Analysis of People Lab, Aalborg University, Aalborg, Rendsburggade 14, Denmark |
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© The Author(s) 2018 |
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Mar 30, 2008 |
The Most Beautiful Heart |
Insha'Allah you are all in the best of states. |
I would like to share a story I found on the net. Masha'Allah it is very beautiful and it should serve as a reminder to us all. |
Suddenly, an old man appeared at the front of the crowd and said, “Why your heart is not nearly as beautiful as mine.” The crowd and the young man looked at the old man’s heart. It was beating strongly, but full of scars, it had places where pieces had been removed and other pieces put in, but they didn’t fit quite rig... |
The people stared — how can he say his heart is more beautiful, they thought? The young man looked at the old man’s heart and saw its state and laughed. “You must be joking,” he said. “Compare your heart with mine, mine is perfect and yours is a mess of scars and tears.” “Yes,” said the old man, “yours is perfect looki... |
The young man looked at his heart, not perfect anymore but more beautiful than ever, since love from the old man’s heart flowed into his. They embraced and walked away side by side. |
Please let everyone know each day how much they mean to you, as they may be gone tomorrow. |
May Allah (SWT) make as the among the people of Jannah. Ameen. |
ma'asalaam =) |
Leia Mais |
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