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Despite their irresistible success, deep learning algorithms still heavily rely on annotated data. On the other hand, unsupervised settings pose many challenges, especially about determining the right inductive bias in diverse scenarios.…

计算机视觉与模式识别 · 计算机科学 2021-03-11 Beril Besbinar , Pascal Frossard

We propose a new self-supervised CNN pre-training technique based on a novel auxiliary task called "odd-one-out learning". In this task, the machine is asked to identify the unrelated or odd element from a set of otherwise related elements.…

计算机视觉与模式识别 · 计算机科学 2017-04-06 Basura Fernando , Hakan Bilen , Efstratios Gavves , Stephen Gould

The recent success in deep learning has lead to various effective representation learning methods for videos. However, the current approaches for video representation require large amount of human labeled datasets for effective learning. We…

计算机视觉与模式识别 · 计算机科学 2018-11-30 Shruti Vyas , Yogesh S Rawat , Mubarak Shah

Previous methods on estimating detailed human depth often require supervised training with `ground truth' depth data. This paper presents a self-supervised method that can be trained on YouTube videos without known depth, which makes…

计算机视觉与模式识别 · 计算机科学 2020-05-08 Feitong Tan , Hao Zhu , Zhaopeng Cui , Siyu Zhu , Marc Pollefeys , Ping Tan

The success of deep learning based models for computer vision applications requires large scale human annotated data which are often expensive to generate. Self-supervised learning, a subset of unsupervised learning, handles this problem by…

计算机视觉与模式识别 · 计算机科学 2022-08-02 Siladittya Manna , Saumik Bhattacharya , Umapada Pal

Self-supervised tasks such as colorization, inpainting and zigsaw puzzle have been utilized for visual representation learning for still images, when the number of labeled images is limited or absent at all. Recently, this worthwhile stream…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Dahun Kim , Donghyeon Cho , In So Kweon

This work focuses on the apparent emotional reaction recognition (AERR) from the video-only input, conducted in a self-supervised fashion. The network is first pre-trained on different self-supervised pretext tasks and later fine-tuned on…

计算机视觉与模式识别 · 计算机科学 2022-10-21 Marija Jegorova , Stavros Petridis , Maja Pantic

In this paper, we tackle the problem of video alignment, the process of matching the frames of a pair of videos containing similar actions. The main challenge in video alignment is that accurate correspondence should be established despite…

计算机视觉与模式识别 · 计算机科学 2024-09-09 Niloufar Fakhfour , Mohammad ShahverdiKondori , Sajjad Hashembeiki , Mohammadjavad Norouzi , Hoda Mohammadzade

Planning at a higher level of abstraction instead of low level torques improves the sample efficiency in reinforcement learning, and computational efficiency in classical planning. We propose a method to learn such hierarchical…

机器人学 · 计算机科学 2019-10-16 Ashish Kumar , Saurabh Gupta , Jitendra Malik

Human behavior understanding in videos is a complex, still unsolved problem and requires to accurately model motion at both the local (pixel-wise dense prediction) and global (aggregation of motion cues) levels. Current approaches based on…

计算机视觉与模式识别 · 计算机科学 2019-09-19 C. Spampinato , S. Palazzo , P. D'Oro , D. Giordano , M. Shah

We propose a self-supervised method for learning motion-focused video representations. Existing approaches minimize distances between temporally augmented videos, which maintain high spatial similarity. We instead propose to learn…

计算机视觉与模式识别 · 计算机科学 2023-09-29 Fida Mohammad Thoker , Hazel Doughty , Cees Snoek

We present a novel self-taught framework for unsupervised metric learning, which alternates between predicting class-equivalence relations between data through a moving average of an embedding model and learning the model with the predicted…

计算机视觉与模式识别 · 计算机科学 2022-05-05 Sungyeon Kim , Dongwon Kim , Minsu Cho , Suha Kwak

Video action recognition (VAR) is a primary task of video understanding, and untrimmed videos are more common in real-life scenes. Untrimmed videos have redundant and diverse clips containing contextual information, so sampling dense clips…

计算机视觉与模式识别 · 计算机科学 2021-04-22 Yunyan Hong , Ailing Zeng , Min Li , Cewu Lu , Li Jiang , Qiang Xu

Is strong supervision necessary for learning a good visual representation? Do we really need millions of semantically-labeled images to train a Convolutional Neural Network (CNN)? In this paper, we present a simple yet surprisingly powerful…

计算机视觉与模式识别 · 计算机科学 2015-10-07 Xiaolong Wang , Abhinav Gupta

Deep neural networks are efficient learning machines which leverage upon a large amount of manually labeled data for learning discriminative features. However, acquiring substantial amount of supervised data, especially for videos can be a…

计算机视觉与模式识别 · 计算机科学 2018-08-16 Sujoy Paul , Sourya Roy , Amit K. Roy-Chowdhury

We propose a realistic scenario for the unsupervised video learning where neither task boundaries nor labels are provided when learning a succession of tasks. We also provide a non-parametric learning solution for the under-explored problem…

计算机视觉与模式识别 · 计算机科学 2025-09-01 Nattapong Kurpukdee , Adrian G. Bors

Surgical data science is a new research field that aims to observe all aspects of the patient treatment process in order to provide the right assistance at the right time. Due to the breakthrough successes of deep learning-based solutions…

Self-supervised learning of convolutional neural networks can harness large amounts of cheap unlabeled data to train powerful feature representations. As surrogate task, we jointly address ordering of visual data in the spatial and temporal…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Uta Büchler , Biagio Brattoli , Björn Ommer

We propose a novel self-supervised approach for learning audio and visual representations from unlabeled videos, based on their correspondence. The approach uses an attention mechanism to learn the relative importance of convolutional…

计算机视觉与模式识别 · 计算机科学 2024-12-11 Sudha Krishnamurthy

Because of the rich dynamical structure of videos and their ubiquity in everyday life, it is a natural idea that video data could serve as a powerful unsupervised learning signal for training visual representations in deep neural networks.…

计算机视觉与模式识别 · 计算机科学 2020-03-12 Chengxu Zhuang , Tianwei She , Alex Andonian , Max Sobol Mark , Daniel Yamins