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Recent advances in pre-trained vision transformers have shown promise in parameter-efficient audio-visual learning without audio pre-training. However, few studies have investigated effective methods for aligning multimodal features in…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Tanvir Mahmud , Shentong Mo , Yapeng Tian , Diana Marculescu

In this paper, we propose a method for keypoint discovery from a 2D image using image-level supervision. Recent works on unsupervised keypoint discovery reliably discover keypoints of aligned instances. However, when the target instances…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Serim Ryou , Pietro Perona

Due to the problem of performance constraints of unsupervised video object detection, its large-scale application is limited. In response to this pain point, we propose another excellent method to solve this problematic point. By…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Chao Hu , Liqiang Zhu

Video moment retrieval is to identify the target moment according to the given sentence in an untrimmed video. Due to temporal boundary annotations of the video are extremely time-consuming to acquire, modeling in the weakly-supervised…

Multimedia · Computer Science 2023-11-27 Haoyuan Li , Zhou Zhao , Zhu Zhang , Zhijie Lin

Monocular 3D object detection typically relies on pseudo-labeling techniques to reduce dependency on real-world annotations. Recent advances demonstrate that deterministic linguistic cues can serve as effective auxiliary weak supervision…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Chupeng Liu , Jiyong Rao , Shangquan Sun , Runkai Zhao , Weidong Cai

Despite the recent advances in video classification, progress in spatio-temporal action recognition has lagged behind. A major contributing factor has been the prohibitive cost of annotating videos frame-by-frame. In this paper, we present…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Anurag Arnab , Chen Sun , Arsha Nagrani , Cordelia Schmid

Weakly-supervised Temporal Action Localization (WS-TAL) methods learn to localize temporal starts and ends of action instances in a video under only video-level supervision. Existing WS-TAL methods rely on deep features learned for action…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Ziyi Liu , Le Wang , Wei Tang , Junsong Yuan , Nanning Zheng , Gang Hua

Videos contain multi-modal content, and exploring multi-level cross-modal interactions with natural language queries can provide great prominence to text-video retrieval task (TVR). However, new trending methods applying large-scale…

Multimedia · Computer Science 2022-08-23 Shuo Liu , Weize Quan , Ming Zhou , Sihong Chen , Jian Kang , Zhe Zhao , Chen Chen , Dong-Ming Yan

Video action recognition is a challenging but important task for understanding and discovering what the video does. However, acquiring annotations for a video is costly, and semi-supervised learning (SSL) has been studied to improve…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Seokun Kang , Taehwan Kim

Fusion technique is a key research topic in multimodal sentiment analysis. The recent attention-based fusion demonstrates advances over simple operation-based fusion. However, these fusion works adopt single-scale, i.e., token-level or…

Computation and Language · Computer Science 2021-12-03 Huaishao Luo , Lei Ji , Yanyong Huang , Bin Wang , Shenggong Ji , Tianrui Li

Existing RGB-Event detection methods process the low-information regions of both modalities (background in images and non-event regions in event data) uniformly during feature extraction and fusion, resulting in high computational costs and…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Nan Yang , Yang Wang , Zhanwen Liu , Yuchao Dai , Yang Liu , Xiangmo Zhao

Recent breakthroughs in Multimodal Large Language Models (MLLMs) have gained significant recognition within the deep learning community, where the fusion of the Video Foundation Models (VFMs) and Large Language Models(LLMs) has proven…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Quan Zhang , Jinwei Fang , Rui Yuan , Xi Tang , Yuxin Qi , Ke Zhang , Chun Yuan

Weakly-supervised audio-visual video parsing (AVVP) seeks to detect audible, visible, and audio-visual events without temporal annotations. Previous work has emphasized refining global predictions through contrastive or collaborative…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Yaru Chen , Ruohao Guo , Liting Gao , Yang Xiang , Qingyu Luo , Zhenbo Li , Wenwu Wang

Weakly supervised video anomaly detection (WSVAD) is a challenging task since only video-level labels are available for training. In previous studies, the discriminative power of the learned features is not strong enough, and the data…

Computer Vision and Pattern Recognition · Computer Science 2022-12-19 Congqi Cao , Xin Zhang , Shizhou Zhang , Peng Wang , Yanning Zhang

The video topic segmentation (VTS) task segments videos into intelligible, non-overlapping topics, facilitating efficient comprehension of video content and quick access to specific content. VTS is also critical to various downstream video…

Artificial Intelligence · Computer Science 2024-12-31 Hai Yu , Chong Deng , Qinglin Zhang , Jiaqing Liu , Qian Chen , Wen Wang

Weakly-supervised anomaly detection can outperform existing unsupervised methods with the assistance of a very small number of labeled anomalies, which attracts increasing attention from researchers. However, existing weakly-supervised…

Machine Learning · Computer Science 2024-06-14 Xu Tan , Junqi Chen , Sylwan Rahardja , Jiawei Yang , Susanto Rahardja

Weakly supervised semantic segmentation aims to achieve pixel-level predictions using image-level labels. Existing methods typically entangle semantic recognition and object localization, which often leads models to focus exclusively on…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Qingze He , Fagui Liu , Dengke Zhang , Qingmao Wei , Quan Tang

Unmanned aerial vehicle (UAV) object detection plays a vital role in applications such as environmental monitoring and urban security. To improve robustness, recent studies have explored multimodal detection by fusing visible (RGB) and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Liu Zongzhen , Luo Hui , Wang Zhixing , Wei Yuxing , Zuo Haorui , Zhang Jianlin

Cardiac disease evaluation depends on multiple diagnostic modalities: electrocardiogram (ECG) to diagnose abnormal heart rhythms, and imaging modalities such as Magnetic Resonance Imaging (MRI), Computed Tomography (CT) and echocardiography…

Signal Processing · Electrical Eng. & Systems 2024-12-25 Evariste Njomgue Fotso , Buntheng Ly , Hubert Cochet , Maxime Sermesant

Semi-supervised learning for medical image segmentation is an important area of research for alleviating the huge cost associated with the construction of reliable large-scale annotations in the medical domain. Recent semi-supervised…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Chae Eun Lee , Hyelim Park , Yeong-Gil Shin , Minyoung Chung