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相关论文: Contrastive Learning through Auxiliary Branch for …

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We propose a supervised contrastive learning framework for video representation learning that leverages temporally global context. We introduce a video to image aggregation strategy that spatially arranges multiple frames from each video…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Shaif Chowdhury , Mushfika Rahman , Greg Hamerly

Contrastive learning has nearly closed the gap between supervised and self-supervised learning of image representations, and has also been explored for videos. However, prior work on contrastive learning for video data has not explored the…

计算机视觉与模式识别 · 计算机科学 2022-03-31 Ishan Dave , Rohit Gupta , Mamshad Nayeem Rizve , Mubarak Shah

We propose a novel unsupervised approach based on a two-stage object-centric adversarial framework that only needs object regions for detecting frame-level local anomalies in videos. The first stage consists in learning the correspondence…

计算机视觉与模式识别 · 计算机科学 2020-11-16 Pankaj Raj Roy , Guillaume-Alexandre Bilodeau , Lama Seoud

Semantic segmentation in autonomous driving predominantly focuses on learning from large-scale data with a closed set of known classes without considering unknown objects. Motivated by safety reasons, we address the video class agnostic…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Mennatullah Siam , Alex Kendall , Martin Jagersand

Unsupervised object-centric learning from videos is a promising approach to extract structured representations from large, unlabeled collections of videos. To support downstream tasks like autonomous control, these representations must be…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Anna Manasyan , Maximilian Seitzer , Filip Radovic , Georg Martius , Andrii Zadaianchuk

Contrastive learning has emerged as a powerful technique in audio-visual representation learning, leveraging the natural co-occurrence of audio and visual modalities in webscale video datasets. However, conventional contrastive audio-visual…

声音 · 计算机科学 2025-03-18 Ioannis Tsiamas , Santiago Pascual , Chunghsin Yeh , Joan Serrà

The rapid proliferation of digital content and the ever-growing need for precise object recognition and segmentation have driven the advancement of cutting-edge techniques in the field of object classification and segmentation. This paper…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Chandan Kumar , Jansel Herrera-Gerena , John Just , Matthew Darr , Ali Jannesari

In the field of 3D object detection tasks, fusing heterogeneous features from LiDAR and camera sensors into a unified Bird's Eye View (BEV) representation is a widely adopted paradigm. However, existing methods often suffer from imprecise…

计算机视觉与模式识别 · 计算机科学 2025-08-20 Ziying Song , Hongyu Pan , Feiyang Jia , Yongchang Zhang , Lin Liu , Lei Yang , Shaoqing Xu , Peiliang Wu , Caiyan Jia , Zheng Zhang , Yadan Luo

This paper proposes an adaptive auxiliary task learning based approach for object counting problems. Unlike existing auxiliary task learning based methods, we develop an attention-enhanced adaptively shared backbone network to enable both…

计算机视觉与模式识别 · 计算机科学 2022-03-09 Yanda Meng , Joshua Bridge , Meng Wei , Yitian Zhao , Yihong Qiao , Xiaoyun Yang , Xiaowei Huang , Yalin Zheng

Contrastive learning has shown promising potential in self-supervised spatio-temporal representation learning. Most works naively sample different clips to construct positive and negative pairs. However, we observe that this formulation…

计算机视觉与模式识别 · 计算机科学 2022-07-13 Shuangrui Ding , Rui Qian , Hongkai Xiong

Current audio-visual representation learning can capture rough object categories (e.g., ``animals'' and ``instruments''), but it lacks the ability to recognize fine-grained details, such as specific categories like ``dogs'' and ``flutes''…

多媒体 · 计算机科学 2024-09-19 Shota Nakada , Taichi Nishimura , Hokuto Munakata , Masayoshi Kondo , Tatsuya Komatsu

We propose a framework using contrastive learning as a pre-training task to perform image classification in the presence of noisy labels. Recent strategies such as pseudo-labeling, sample selection with Gaussian Mixture models, weighted…

计算机视觉与模式识别 · 计算机科学 2021-04-21 Madalina Ciortan , Romain Dupuis , Thomas Peel

Recently, self-supervised representation learning gives further development in multimedia technology. Most existing self-supervised learning methods are applicable to packaged data. However, when it comes to streamed data, they are…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Zhiwei Lin , Yongtao Wang , Hongxiang Lin

In contrast to the incremental classification task, the incremental detection task is characterized by the presence of data ambiguity, as an image may have differently labeled bounding boxes across multiple continuous learning stages. This…

计算机视觉与模式识别 · 计算机科学 2024-07-10 Ziyue Huang , Yupeng He , Qingjie Liu , Yunhong Wang

Contrastive vision-language models, such as CLIP, have garnered considerable attention for various downstream tasks, mainly due to the remarkable ability of the learned features for generalization. However, the features they learned often…

计算机视觉与模式识别 · 计算机科学 2025-04-24 Yichao Cai , Yuhang Liu , Zhen Zhang , Javen Qinfeng Shi

Recent cutting-edge feature aggregation paradigms for video object detection rely on inferring feature correspondence. The feature correspondence estimation problem is fundamentally difficult due to poor image quality, motion blur, etc, and…

计算机视觉与模式识别 · 计算机科学 2019-07-12 Hao Luo , Lichao Huang , Han Shen , Yuan Li , Chang Huang , Xinggang Wang

Recent advances in vision language models (VLM) have been driven by contrastive models such as CLIP, which learn to associate visual information with their corresponding text descriptions. However, these models have limitations in…

计算机视觉与模式识别 · 计算机科学 2025-02-21 Rim Assouel , Pietro Astolfi , Florian Bordes , Michal Drozdzal , Adriana Romero-Soriano

Contrastive learning has emerged as an efficient framework to learn multimodal representations. CLIP, a seminal work in this area, achieved impressive results by training on paired image-text data using the contrastive loss. Recent work…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Enrico Fini , Pietro Astolfi , Adriana Romero-Soriano , Jakob Verbeek , Michal Drozdzal

Conventional object detectors rely on cross-entropy classification, which can be vulnerable to class imbalance and label noise. We propose CLIP-Joint-Detect, a simple and detector-agnostic framework that integrates CLIP-style contrastive…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Behnam Raoufi , Hossein Sharify , Mohamad Mahdee Ramezanee , Khosrow Hajsadeghi , Saeed Bagheri Shouraki

The learning objective of vision-language approach of CLIP does not effectively account for the noisy many-to-many correspondences found in web-harvested image captioning datasets, which contributes to its compute and data inefficiency. To…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Alex Andonian , Shixing Chen , Raffay Hamid