Visualizing Skiers' Trajectories in Monocular Videos
Abstract
Trajectories are fundamental to winning in alpine skiing. Tools enabling the analysis of such curves can enhance the training activity and enrich broadcasting content. In this paper, we propose SkiTraVis, an algorithm to visualize the sequence of points traversed by a skier during its performance. SkiTraVis works on monocular videos and constitutes a pipeline of a visual tracker to model the skier's motion and of a frame correspondence module to estimate the camera's motion. The separation of the two motions enables the visualization of the trajectory according to the moving camera's perspective. We performed experiments on videos of real-world professional competitions to quantify the visualization error, the computational efficiency, as well as the applicability. Overall, the results achieved demonstrate the potential of our solution for broadcasting media enhancement and coach assistance.
Cite
Text
Dunnhofer et al. "Visualizing Skiers' Trajectories in Monocular Videos." IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, 2023. doi:10.1109/CVPRW59228.2023.00547Markdown
[Dunnhofer et al. "Visualizing Skiers' Trajectories in Monocular Videos." IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, 2023.](https://mlanthology.org/cvprw/2023/dunnhofer2023cvprw-visualizing/) doi:10.1109/CVPRW59228.2023.00547BibTeX
@inproceedings{dunnhofer2023cvprw-visualizing,
title = {{Visualizing Skiers' Trajectories in Monocular Videos}},
author = {Dunnhofer, Matteo and Sordi, Luca and Micheloni, Christian},
booktitle = {IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops},
year = {2023},
pages = {5188-5198},
doi = {10.1109/CVPRW59228.2023.00547},
url = {https://mlanthology.org/cvprw/2023/dunnhofer2023cvprw-visualizing/}
}