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We present a self-supervised learning method to learn audio and video representations. Prior work uses the natural correspondence between audio and video to define a standard cross-modal instance discrimination task, where a model is…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Pedro Morgado , Ishan Misra , Nuno Vasconcelos

Accurate prediction of material properties facilitates the discovery of novel materials with tailored functionalities. Deep learning models have recently shown superior accuracy and flexibility in capturing structure-property relationships.…

机器学习 · 计算机科学 2025-04-30 Chowdhury Mohammad Abid Rahman , Aldo H. Romero , Prashnna K. Gyawali

Self-supervised learning techniques have shown their abilities to learn meaningful feature representation. This is made possible by training a model on pretext tasks that only requires to find correlations between inputs or parts of inputs.…

计算机视觉与模式识别 · 计算机科学 2020-01-17 Vishal Keshav , Fabien Delattre

While unsupervised change detection using contrastive learning has been significantly improved the performance of literature techniques, at present, it only focuses on the bi-temporal change detection scenario. Previous state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Yuxing Chen , Lorenzo Bruzzone

This presentation introduces a self-supervised learning approach to the synthesis of new video clips from old ones, with several new key elements for improved spatial resolution and realism: It conditions the synthesis process on contextual…

计算机视觉与模式识别 · 计算机科学 2021-10-27 Guillaume Le Moing , Jean Ponce , Cordelia Schmid

Self-supervised learning (SSL) has recently emerged as a powerful approach to learning representations from large-scale unlabeled data, showing promising results in time series analysis. The self-supervised representation learning can be…

机器学习 · 计算机科学 2024-03-18 Ziyu Liu , Azadeh Alavi , Minyi Li , Xiang Zhang

In low-level video analyses, effective representations are important to derive the correspondences between video frames. These representations have been learned in a self-supervised fashion from unlabeled images or videos, using carefully…

计算机视觉与模式识别 · 计算机科学 2023-06-23 Rui Li , Dong Liu

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…

计算机视觉与模式识别 · 计算机科学 2021-01-20 Nanxuan Zhao , Zhirong Wu , Rynson W. H. Lau , Stephen Lin

Temporal segmentation of long videos is an important problem, that has largely been tackled through supervised learning, often requiring large amounts of annotated training data. In this paper, we tackle the problem of self-supervised…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Sathyanarayanan N. Aakur , Sudeep Sarkar

Online unsupervised video object segmentation (UVOS) uses the previous frames as its input to automatically separate the primary object(s) from a streaming video without using any further manual annotation. A major challenge is that the…

计算机视觉与模式识别 · 计算机科学 2024-01-18 Lin Xi , Weihai Chen , Xingming Wu , Zhong Liu , Zhengguo Li

Self-supervised learning has emerged as a powerful paradigm for label-free model pretraining, particularly in the video domain, where manual annotation is costly and time-intensive. However, existing self-supervised approaches employ…

计算机视觉与模式识别 · 计算机科学 2025-04-09 Akash Kumar , Ashlesha Kumar , Vibhav Vineet , Yogesh S Rawat

Aligning image and text encoders from scratch using contrastive learning requires large amounts of paired image-text data. We alleviate this need by aligning individually pre-trained language and vision representation models using a much…

计算机视觉与模式识别 · 计算机科学 2022-08-01 Tejas Srinivasan , Xiang Ren , Jesse Thomason

Recently, pretext-task based methods are proposed one after another in self-supervised video feature learning. Meanwhile, contrastive learning methods also yield good performance. Usually, new methods can beat previous ones as claimed that…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Li Tao , Xueting Wang , Toshihiko Yamasaki

We present a self-supervised approach for learning video representations using temporal video alignment as a pretext task, while exploiting both frame-level and video-level information. We leverage a novel combination of temporal alignment…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Sanjay Haresh , Sateesh Kumar , Huseyin Coskun , Shahram Najam Syed , Andrey Konin , Muhammad Zeeshan Zia , Quoc-Huy Tran

Self-supervised video representation learning aimed at maximizing similarity between different temporal segments of one video, in order to enforce feature persistence over time. This leads to loss of pertinent information related to…

计算机视觉与模式识别 · 计算机科学 2023-05-12 Di Yang , Yaohui Wang , Quan Kong , Antitza Dantcheva , Lorenzo Garattoni , Gianpiero Francesca , Francois Bremond

Recent self-supervised video representation learning methods have found significant success by exploring essential properties of videos, e.g. speed, temporal order, etc. This work exploits an essential yet under-explored property of videos,…

计算机视觉与模式识别 · 计算机科学 2022-01-13 Hanwen Liang , Niamul Quader , Zhixiang Chi , Lizhe Chen , Peng Dai , Juwei Lu , Yang Wang

Recent works have advanced the performance of self-supervised representation learning by a large margin. The core among these methods is intra-image invariance learning. Two different transformations of one image instance are considered as…

计算机视觉与模式识别 · 计算机科学 2021-05-14 Haiping Wu , Xiaolong Wang

We develop an approach to learning visual representations that embraces multimodal data, driven by a combination of intra- and inter-modal similarity preservation objectives. Unlike existing visual pre-training methods, which solve a proxy…

计算机视觉与模式识别 · 计算机科学 2021-04-28 Xin Yuan , Zhe Lin , Jason Kuen , Jianming Zhang , Yilin Wang , Michael Maire , Ajinkya Kale , Baldo Faieta

Sound localization aims to find the source of the audio signal in the visual scene. However, it is labor-intensive to annotate the correlations between the signals sampled from the audio and visual modalities, thus making it difficult to…

计算机视觉与模式识别 · 计算机科学 2021-04-02 Yan-Bo Lin , Hung-Yu Tseng , Hsin-Ying Lee , Yen-Yu Lin , Ming-Hsuan Yang

Contrastive, self-supervised learning of object representations recently emerged as an attractive alternative to reconstruction-based training. Prior approaches focus on contrasting individual object representations (slots) against one…

计算机视觉与模式识别 · 计算机科学 2020-11-23 Sindy Löwe , Klaus Greff , Rico Jonschkowski , Alexey Dosovitskiy , Thomas Kipf