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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…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Christoph Feichtenhofer , Haoqi Fan , Bo Xiong , Ross Girshick , Kaiming He

We propose a self-supervised framework to learn scene representations from video that are automatically delineated into objects and background. Our method relies on moving objects being equivariant with respect to their transformation…

Computer Vision and Pattern Recognition · Computer Science 2020-11-12 Cinjon Resnick , Or Litany , Hugo Larochelle , Joan Bruna , Kyunghyun Cho

In recent years self-supervised learning has emerged as a promising candidate for unsupervised representation learning. In the visual domain its applications are mostly studied in the context of images of natural scenes. However, its…

Computer Vision and Pattern Recognition · Computer Science 2021-06-04 Vladan Stojnić , Vladimir Risojević

Recent progress in contrastive learning has revolutionized unsupervised representation learning. Concretely, multiple views (augmentations) from the same image are encouraged to map to the similar embeddings, while views from different…

Computer Vision and Pattern Recognition · Computer Science 2021-01-20 Nanxuan Zhao , Zhirong Wu , Rynson W. H. Lau , Stephen Lin

Extracting and predicting object structure and dynamics from videos without supervision is a major challenge in machine learning. To address this challenge, we adopt a keypoint-based image representation and learn a stochastic dynamics…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Matthias Minderer , Chen Sun , Ruben Villegas , Forrester Cole , Kevin Murphy , Honglak Lee

Humans are continuously exposed to a stream of visual data with a natural temporal structure. However, most successful computer vision algorithms work at image level, completely discarding the precious information carried by motion. In this…

Computer Vision and Pattern Recognition · Computer Science 2020-04-27 Alessandro Betti , Marco Gori , Stefano Melacci

This thesis focuses on representation learning for sequence data over time or space, aiming to improve downstream sequence prediction tasks by using the learned representations. Supervised learning has been the most dominant approach for…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-02 Qingming Tang

We introduce a novel self-supervised contrastive learning method to learn representations from unlabelled videos. Existing approaches ignore the specifics of input distortions, e.g., by learning invariance to temporal transformations.…

Computer Vision and Pattern Recognition · Computer Science 2021-12-08 Simon Jenni , Hailin Jin

Considering the close connection between action recognition and human pose estimation, we design a Collaboratively Self-supervised Video Representation (CSVR) learning framework specific to action recognition by jointly factoring in…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Jie Zhang , Zhifan Wan , Lanqing Hu , Stephen Lin , Shuzhe Wu , Shiguang Shan

Discriminative self-supervised learning allows training models on any random group of internet images, and possibly recover salient information that helps differentiate between the images. Applied to ImageNet, this leads to object centric…

Computer Vision and Pattern Recognition · Computer Science 2022-02-23 Priya Goyal , Quentin Duval , Isaac Seessel , Mathilde Caron , Ishan Misra , Levent Sagun , Armand Joulin , Piotr Bojanowski

Despite the great progress in video understanding made by deep convolutional neural networks, feature representation learned by existing methods may be biased to static visual cues. To address this issue, we propose a novel method to…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Manlin Zhang , Jinpeng Wang , Andy J. Ma

Humans develop visual intelligence through perceiving and interacting with their environment - a self-supervised learning process grounded in egocentric experience. Inspired by this, we ask how can artificial systems learn stable object…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yuting Tan , Xilong Cheng , Yunxiao Qin , Zhengnan Li , Jingjing Zhang

Learning a good representation for space-time correspondence is the key for various computer vision tasks, including tracking object bounding boxes and performing video object pixel segmentation. To learn generalizable representation for…

Computer Vision and Pattern Recognition · Computer Science 2021-10-15 Jiarui Xu , Xiaolong Wang

A core component of the recent success of self-supervised learning is cropping data augmentation, which selects sub-regions of an image to be used as positive views in the self-supervised loss. The underlying assumption is that randomly…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Shlok Mishra , Anshul Shah , Ankan Bansal , Abhyuday Jagannatha , Janit Anjaria , Abhishek Sharma , David Jacobs , Dilip Krishnan

Understanding the world around us and making decisions about the future is a critical component to human intelligence. As autonomous systems continue to develop, their ability to reason about the future will be the key to their success.…

Computer Vision and Pattern Recognition · Computer Science 2018-11-22 Adam M. Terwilliger , Garrick Brazil , Xiaoming Liu

We develop a fully automatic image colorization system. Our approach leverages recent advances in deep networks, exploiting both low-level and semantic representations. As many scene elements naturally appear according to multimodal color…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Gustav Larsson , Michael Maire , Gregory Shakhnarovich

In Deep Reinforcement Learning (RL), it is a challenge to learn representations that do not exhibit catastrophic forgetting or interference in non-stationary environments. Successor Features (SFs) offer a potential solution to this…

Machine Learning · Computer Science 2024-11-01 Raymond Chua , Arna Ghosh , Christos Kaplanis , Blake A. Richards , Doina Precup

The goal of self-supervised visual representation learning is to learn strong, transferable image representations, with the majority of research focusing on object or scene level. On the other hand, representation learning at part level has…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Subhabrata Choudhury , Iro Laina , Christian Rupprecht , Andrea Vedaldi

Animals have evolved highly functional visual systems to understand motion, assisting perception even under complex environments. In this paper, we work towards developing a computer vision system able to segment objects by exploiting…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Charig Yang , Hala Lamdouar , Erika Lu , Andrew Zisserman , Weidi Xie

Humans perceive and interact with the world with the awareness of equivariance, facilitating us in manipulating different objects in diverse poses. For robotic manipulation, such equivariance also exists in many scenarios. For example, no…

Robotics · Computer Science 2024-08-08 Yue Chen , Chenrui Tie , Ruihai Wu , Hao Dong