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  4. Learning to Align Sequential Actions in the Wild
 
conference paper

Learning to Align Sequential Actions in the Wild

Liu, Weizhe  
•
Tekin, Bugra
•
Coskun, Huseyn
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2022
2022 Ieee/Cvf Conference On Computer Vision And Pattern Recognition (Cvpr 2022)
CVPR 2022 : IEEE/CVF Conference on Computer Vision and Pattern Recognition

State-of-the-art methods for self-supervised sequential action alignment rely on deep networks that find correspon- dences across videos in time. They either learn frame-to- frame mapping across sequences, which does not leverage temporal information, or assume monotonic alignment be- tween each video pair, which ignores variations in the or- der of actions. As such, these methods are not able to deal with common real-world scenarios that involve background frames or videos that contain non-monotonic sequence of actions. In this paper, we propose an approach to align sequential actions in the wild that involve diverse temporal variations. To this end, we propose an approach to enforce tempo- ral priors on the optimal transport matrix, which leverages temporal consistency, while allowing for variations in the order of actions. Our model accounts for both monotonic and non-monotonic sequences and handles background frames that should not be aligned. We demonstrate that our approach consistently outperforms the state-of-the-art in self-supervised sequential action representation learning on four different benchmark dataset.

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Type
conference paper
DOI
10.1109/CVPR52688.2022.00222
Author(s)
Liu, Weizhe  
Tekin, Bugra
Coskun, Huseyn
Vineet, Vibhav
Fua, Pascal  
Date Issued

2022

Publisher

IEEE COMPUTER SOC

Publisher place

Los Alamitos

Published in
2022 Ieee/Cvf Conference On Computer Vision And Pattern Recognition (Cvpr 2022)
ISBN of the book

978-1-6654-6946-3

Series title/Series vol.

IEEE Conference on Computer Vision and Pattern Recognition

Start page

2171

End page

2181

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CVLAB  
Event nameEvent placeEvent date
CVPR 2022 : IEEE/CVF Conference on Computer Vision and Pattern Recognition

New Orleans, LA, United States

Jun 18-24, 2022

Available on Infoscience
March 16, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/186449
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