Cited by 224Human Pose and Action RecognitionDomain Adaptation and Few-Shot LearningMultimodal Machine Learning Applications

A large-scale study on unsupervised spatiotemporal representation learning

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Feichtenhofer, Christoph, Fan, Haoqi, Xiong, Bo, Girshick, Ross, He, Kaiming·2021·2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)

Abstract

We present a large-scale study on unsupervised spatiotemporal representation learning from videos. With a unified perspective on four recent image-based frameworks, we study a simple objective that can easily generalize all these methods to space-time. Our objective encourages temporally-persistent features in the same video, and in spite of its simplicity, it works surprisingly well across: (i) different unsupervised frameworks, (ii) pre-training datasets, (iii) downstream datasets, and (iv) backbone architectures. We draw a series of intriguing observations from this study, e.g., we discover that encouraging long-spanned persistency can be effective even if the timespan is 60 seconds. In addition to state-of-the-art results in multiple benchmarks, we report a few promising cases in which unsupervised pre-training can outperform its supervised counterpart. Code will be made available at https://github.com/facebookresearch/SlowFast.

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6 of the 104 references couldn’t be matched to a known paper.

Research works printed but not linked: 6

  1. R. B. Girshick. Fast R-CNN. In Proc. ICCV, 2015. 12
  2. Kaiming He, Georgia Gkioxari, Piotr Dollár, and Ross Gir- shick. Mask R-CNN. In Proc. ICCV, 2017. 13
  3. Kaiming He, Xiangyu Zhang, Shaoqing Ren, and Jian Sun. Delving deep into rectifiers: Surpassing human-level perfor- mance on imagenet classification. In Proc. ICCV, 2015. 11
  4. Xu Ji, João F. Henriques, and Andrea Vedaldi. Invariant information clustering for unsupervised image classification and segmentation. In Proc. ICCV, pages 9865-9874, 2019. 2
  5. Andrew Owens, Phillip Isola, Josh H. McDermott, Antonio Torralba, Edward H. Adelson, and William T. Freeman. Vi- sually indicated sounds. In Proc. CVPR, pages 2405-2413, 2016. 2
  6. Carl Vondrick, Hamed Pirsiavash, and Antonio Torralba. An- ticipating visual representations from unlabelled video. In Proc. CVPR, 2016. 2

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Authors
Feichtenhofer, C., Fan, H., Xiong, B., Girshick, R., & He, K.
Affiliations
Meta (United States) (US)
Venue
2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)
Publisher
IEEE
Published
2021-06
Pages
3298-3308
ISSN
1063-6919 (ISSN-L)
OpenAlex
W3170837227
Cited by
222
References
104
Citations by year
2026: 10 · 2025: 33 · 2024: 49 · 2023: 67 · 2022: 49 · 2021: 13 · 2020: 1
FWCI
14.56
Type
conference paper
Language
en
Open access
Locations
  • IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Human Pose and Action Recognition
  • Physical Sciences › Computer Science › Artificial Intelligence › Domain Adaptation and Few-Shot Learning
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Multimodal Machine Learning Applications
Keywords
unsupervised feature learning, spatio-temporal representation learning, SlowFast, video understanding

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