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Although unsupervised person re-identification (RE-ID) has drawn increasing research attentions due to its potential to address the scalability problem of supervised RE-ID models, it is very challenging to learn discriminative information…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Hong-Xing Yu , Wei-Shi Zheng , Ancong Wu , Xiaowei Guo , Shaogang Gong , Jian-Huang Lai

Person re-identification (ReID) has recently benefited from large pretrained vision-language models such as Contrastive Language-Image Pre-Training (CLIP). However, the absence of concrete descriptions necessitates the use of implicit text…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Qianru Han , Xinwei He , Zhi Liu , Sannyuya Liu , Ying Zhang , Jinhai Xiang

Visible-infrared person re-identification (ReID) aims to recognize a same person of interest across a network of RGB and IR cameras. Some deep learning (DL) models have directly incorporated both modalities to discriminate persons in a…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Mahdi Alehdaghi , Arthur Josi , Rafael M. O. Cruz , Eric Granger

Unsupervised meta-learning aims to learn the meta knowledge from unlabeled data and rapidly adapt to novel tasks. However, existing approaches may be misled by the context-bias (e.g. background) from the training data. In this paper, we…

Machine Learning · Computer Science 2023-02-21 Guodong Qi , Huimin Yu

Recent advancements in adapting vision-language pre-training models like CLIP for person re-identification (ReID) tasks often rely on complex adapter design or modality-specific tuning while neglecting cross-modal interaction, leading to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Yunfei Xie , Yuxuan Cheng , Juncheng Wu , Haoyu Zhang , Yuyin Zhou , Shoudong Han

Visible-Infrared cross-modality person re-identification (VI-ReID), whose aim is to match person images between visible and infrared modality, is a challenging cross-modality image retrieval task. Batch Hard Triplet loss is widely used in…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Wenkang Li , Ke Qi , Wenbin Chen , Yicong Zhou

Video anomaly detection is a subject of great interest across industrial and academic domains due to its crucial role in computer vision applications. However, the inherent unpredictability of anomalies and the scarcity of anomaly samples…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Yalong Jiang , Liquan Mao

Vision-language models (VLMs) like CLIP excel in zero-shot learning by aligning image and text representations through contrastive pretraining. Existing approaches to unsupervised adaptation (UA) for fine-grained classification with VLMs…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Eman Ali , Sathira Silva , Chetan Arora , Muhammad Haris Khan

Vehicle re-identification (Re-ID) is an active task due to its importance in large-scale intelligent monitoring in smart cities. Despite the rapid progress in recent years, most existing methods handle vehicle Re-ID task in a supervised…

Computer Vision and Pattern Recognition · Computer Science 2020-11-19 Aihua Zheng , Xia Sun , Chenglong Li , Jin Tang

Learning cross-view consistent feature representation is the key for accurate vehicle Re-identification (ReID), since the visual appearance of vehicles changes significantly under different viewpoints. To this end, most existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Lu Yang , Hongbang Liu , Jinghao Zhou , Lingqiao Liu , Lei Zhang , Peng Wang , Yanning Zhang

We tackle the task of video moment retrieval (VMR), which aims to localize a specific moment in a video according to a textual query. Existing methods primarily model the matching relationship between query and moment by complex cross-modal…

Computer Vision and Pattern Recognition · Computer Science 2021-06-04 Xun Yang , Fuli Feng , Wei Ji , Meng Wang , Tat-Seng Chua

Joint RGB-infrared perception is essential for achieving robustness under diverse weather and illumination conditions. Although foundation models excel within single modalities, they suffer from substantial cross-modal degradation, an issue…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Fangyuan Mao , Shuo Wang , Jilin Mei , Shun Lu , Chen Min , Fuyang Liu , Xiaokun Feng , Meiqi Wu , Yu Hu

Deep vision models often rely on biases learned from spurious correlations in datasets. To identify these biases, methods that interpret high-level, human-understandable concepts are more effective than those relying primarily on low-level…

Computer Vision and Pattern Recognition · Computer Science 2025-05-19 David Méndez , Gianpaolo Bontempo , Elisa Ficarra , Roberto Confalonieri , Natalia Díaz-Rodríguez

Visible-infrared person re-identification (VI-ReID) is a challenging task that aims to match pedestrian images captured under varying lighting conditions, which has drawn intensive research attention and achieved promising results. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Yan Jiang , Hao Yu , Mengting Wei , Zhaodong Sun , Haoyu Chen , Xu Cheng , Guoying Zhao

Video Anomaly Detection (VAD) has been extensively studied under the settings of One-Class Classification (OCC) and Weakly-Supervised learning (WS), which however both require laborious human-annotated normal/abnormal labels. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Yongwei Nie , Hao Huang , Chengjiang Long , Qing Zhang , Pradipta Maji , Hongmin Cai

Few-shot learning (FSL) often requires effective adaptation of models using limited labeled data. However, most existing FSL methods rely on entangled representations, requiring the model to implicitly recover the unmixing process to obtain…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Tianjiao Jiang , Zhen Zhang , Yuhang Liu , Javen Qinfeng Shi

Visible-Infrared Person Re-identification (VIReID) aims to match visible and infrared pedestrian images, but the modality differences and the complexity of identity features make it challenging. Existing methods rely solely on identity…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Shuanglin Yan , Neng Dong , Shuang Li , Rui Yan , Hao Tang , Jing Qin

Deep learning methods have started to dominate the research progress of video-based person re-identification (re-id). However, existing methods mostly consider supervised learning, which requires exhaustive manual efforts for labelling…

Computer Vision and Pattern Recognition · Computer Science 2018-08-23 Yanbei Chen , Xiatian Zhu , Shaogang Gong

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

Unsupervised domain adaptation (UDA) has been a potent technique to handle the lack of annotations in the target domain, particularly in semantic segmentation task. This study introduces a different UDA scenarios where the target domain…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Fei Pan , Xu Yin , Seokju Lee , Axi Niu , Sungeui Yoon , In So Kweon