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In this study, a novel self-supervised learning (SSL) method is proposed, which considers SSL in terms of variational inference to learn not only representation but also representation uncertainties. SSL is a method of learning…

Computer Vision and Pattern Recognition · Computer Science 2023-09-11 Hiroki Nakamura , Masashi Okada , Tadahiro Taniguchi

Existing video self-supervised learning methods mainly rely on trimmed videos for model training. However, trimmed datasets are manually annotated from untrimmed videos. In this sense, these methods are not really self-supervised. In this…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Dezhao Luo , Bo Fang , Yu Zhou , Yucan Zhou , Dayan Wu , Weiping Wang

Self-supervised learning methods overcome the key bottleneck for building more capable AI: limited availability of labeled data. However, one of the drawbacks of self-supervised architectures is that the representations that they learn are…

Machine Learning · Computer Science 2022-07-08 Avi Ziskind , Sujeong Kim , Giedrius T. Burachas

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

In this paper, we present a technique for unsupervised learning of visual representations. Specifically, we train a model for foreground and background classification task, in the process of which it learns visual representations.…

Computer Vision and Pattern Recognition · Computer Science 2018-06-04 Aditya Vora

Transfer learning has become a standard practice to mitigate the lack of labeled data in medical classification tasks. Whereas finetuning a downstream task using supervised ImageNet pretrained features is straightforward and extensively…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Tuan Truong , Sadegh Mohammadi , Matthias Lenga

Self-supervised learning, which learns by constructing artificial labels given only the input signals, has recently gained considerable attention for learning representations with unlabeled datasets, i.e., learning without any…

Machine Learning · Computer Science 2020-06-30 Hankook Lee , Sung Ju Hwang , Jinwoo Shin

To mimic human vision with the way of recognizing the diverse and open world, foundation vision models are much critical. While recent techniques of self-supervised learning show the promising potentiality of this mission, we argue that…

Computer Vision and Pattern Recognition · Computer Science 2023-10-12 Zhiming Qian

Visual-only self-supervised learning has achieved significant improvement in video representation learning. Existing related methods encourage models to learn video representations by utilizing contrastive learning or designing specific…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Jinyu Liu , Ying Cheng , Yuejie Zhang , Rui-Wei Zhao , Rui Feng

Videos are a rich source of multi-modal supervision. In this work, we learn representations using self-supervision by leveraging three modalities naturally present in videos: visual, audio and language streams. To this end, we introduce the…

Computer Vision and Pattern Recognition · Computer Science 2020-11-02 Jean-Baptiste Alayrac , Adrià Recasens , Rosalia Schneider , Relja Arandjelović , Jason Ramapuram , Jeffrey De Fauw , Lucas Smaira , Sander Dieleman , Andrew Zisserman

Audio-visual representation learning is an important task from the perspective of designing machines with the ability to understand complex events. To this end, we propose a novel multimodal framework that instantiates multiple instance…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Sanjeel Parekh , Slim Essid , Alexey Ozerov , Ngoc Q. K. Duong , Patrick Pérez , Gaël Richard

Existing datasets for manually labelled query-based video summarization are costly and thus small, limiting the performance of supervised deep video summarization models. Self-supervision can address the data sparsity challenge by using a…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Jia-Hong Huang , Luka Murn , Marta Mrak , Marcel Worring

Deep neural networks often struggle to learn robust representations in the presence of dataset biases, leading to suboptimal generalization on unbiased datasets. This limitation arises because the models heavily depend on peripheral and…

Machine Learning · Computer Science 2024-12-11 Carlo Alberto Barbano , Enzo Tartaglione , Marco Grangetto

The objective of this paper is self-supervised learning of feature embeddings that are suitable for matching correspondences along the videos, which we term correspondence flow. By leveraging the natural spatial-temporal coherence in…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Zihang Lai , Weidi Xie

This paper presents a study on semi-supervised learning to solve the visual attribute prediction problem. In many applications of vision algorithms, the precise recognition of visual attributes of objects is important but still challenging.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Minchul Shin

We present a semi-supervised approach that localizes multiple unknown object instances in long videos. We start with a handful of labeled boxes and iteratively learn and label hundreds of thousands of object instances. We propose criteria…

Computer Vision and Pattern Recognition · Computer Science 2015-05-22 Ishan Misra , Abhinav Shrivastava , Martial Hebert

With recent progress in joint modeling of visual and textual representations, Vision-Language Pretraining (VLP) has achieved impressive performance on many multimodal downstream tasks. However, the requirement for expensive annotations…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Zirui Wang , Jiahui Yu , Adams Wei Yu , Zihang Dai , Yulia Tsvetkov , Yuan Cao

Our objective is to transform a video into a set of discrete audio-visual objects using self-supervised learning. To this end, we introduce a model that uses attention to localize and group sound sources, and optical flow to aggregate…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Triantafyllos Afouras , Andrew Owens , Joon Son Chung , Andrew Zisserman

In this work, we propose a novel methodology for self-supervised learning for generating global and local attention-aware visual features. Our approach is based on training a model to differentiate between specific image transformations of…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Trung X. Pham , Rusty John Lloyd Mina , Dias Issa , Chang D. Yoo

The success of supervised learning requires large-scale ground truth labels which are very expensive, time-consuming, or may need special skills to annotate. To address this issue, many self- or un-supervised methods are developed. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2020-04-14 Longlong Jing , Yucheng Chen , Ling Zhang , Mingyi He , Yingli Tian