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Although a significant progress has been witnessed in supervised person re-identification (re-id), it remains challenging to generalize re-id models to new domains due to the huge domain gaps. Recently, there has been a growing interest in…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Yang Zou , Xiaodong Yang , Zhiding Yu , B. V. K. Vijaya Kumar , Jan Kautz

Unsupervised learning visible-infrared person re-identification (USL-VI-ReID) aims at learning modality-invariant features from unlabeled cross-modality dataset, which is crucial for practical applications in video surveillance systems. The…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 De Cheng , Xiaojian Huang , Nannan Wang , Lingfeng He , Zhihui Li , Xinbo Gao

Person re-identification (re-id) aims to match pedestrians observed by disjoint camera views. It attracts increasing attention in computer vision due to its importance to surveillance system. To combat the major challenge of cross-view…

Computer Vision and Pattern Recognition · Computer Science 2017-09-08 Lin Wu , Yang Wang , Junbin Gao , Xue Li

State-of-the-art computer vision models are mostly trained with supervised learning using human-labeled images, which limits their scalability due to the expensive annotation cost. While self-supervised representation learning has achieved…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Junnan Li , Silvio Savarese , Steven C. H. Hoi

Dataset bias is a critical challenge in machine learning since it often leads to a negative impact on a model due to the unintended decision rules captured by spurious correlations. Although existing works often handle this issue based on…

Machine Learning · Computer Science 2022-04-05 Seonguk Seo , Joon-Young Lee , Bohyung Han

Noisy labels, inevitably existing in pseudo segmentation labels generated from weak object-level annotations, severely hampers model optimization for semantic segmentation. Previous works often rely on massive hand-crafted losses and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Shenwang Jiang , Jianan Li , Ying Wang , Wenxuan Wu , Jizhou Zhang , Bo Huang , Tingfa Xu

The memory dictionary-based contrastive learning method has achieved remarkable results in the field of unsupervised person Re-ID. However, The method of updating memory based on all samples does not fully utilize the hardest sample to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Lingzhi Liu , Haiyang Zhang , Chengwei Tang , Tiantian Zhang

To address semi-supervised learning from both labeled and unlabeled data, we present a novel meta-learning scheme. We particularly consider that labeled and unlabeled data share disjoint ground truth label sets, which can be seen tasks like…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Yun-Chun Chen , Chao-Te Chou , Yu-Chiang Frank Wang

Unsupervised domain adaptation (UDA) for person re-identification is challenging because of the huge gap between the source and target domain. A typical self-training method is to use pseudo-labels generated by clustering algorithms to…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Wenhao Wang , Fang Zhao , Shengcai Liao , Ling Shao

Unsupervised domain adaptation (UDA) methods for person re-identification (re-ID) aim at transferring re-ID knowledge from labeled source data to unlabeled target data. Although achieving great success, most of them only use limited data…

Computer Vision and Pattern Recognition · Computer Science 2021-04-28 Zechen Bai , Zhigang Wang , Jian Wang , Di Hu , Errui Ding

Unsupervised Domain Adaptive (UDA) person re-identification (ReID) aims at adapting the model trained on a labeled source-domain dataset to a target-domain dataset without any further annotations. Most successful UDA-ReID approaches combine…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Kecheng Zheng , Wu Liu , Lingxiao He , Tao Mei , Jiebo Luo , Zheng-Jun Zha

Unsupervised person re-identification (ReID) aims to train a feature extractor for identity retrieval without exploiting identity labels. Due to the blind trust in imperfect clustering results, the learning is inevitably misled by…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Yunqi Miao , Jiankang Deng , Guiguang Ding , Jungong Han

The majority of existing Unsupervised Domain Adaptation (UDA) methods presumes source and target domain data to be simultaneously available during training. Such an assumption may not hold in practice, as source data is often inaccessible…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Waqar Ahmed , Pietro Morerio , Vittorio Murino

Person re-identification (re-ID) aims at matching images of the same identity across camera views. Due to varying distances between cameras and persons of interest, resolution mismatch can be expected, which would degrade person re-ID…

Computer Vision and Pattern Recognition · Computer Science 2019-08-19 Yu-Jhe Li , Yun-Chun Chen , Yen-Yu Lin , Xiaofei Du , Yu-Chiang Frank Wang

The pioneering method for unsupervised meta-learning, CACTUs, is a clustering-based approach with pseudo-labeling. This approach is model-agnostic and can be combined with supervised algorithms to learn from unlabeled data. However, it…

Machine Learning · Computer Science 2022-09-29 Xingping Dong , Jianbing Shen , Ling Shao

In the world where big data reigns and there is plenty of hardware prepared to gather a huge amount of non structured data, data acquisition is no longer a problem. Surveillance cameras are ubiquitous and they capture huge numbers of people…

Computer Vision and Pattern Recognition · Computer Science 2021-07-01 Tiago de C. G. Pereira , Teofilo E. de Campos

Recent developed deep unsupervised methods allow us to jointly learn representation and cluster unlabelled data. These deep clustering methods mainly focus on the correlation among samples, e.g., selecting high precision pairs to gradually…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Jianlong Wu , Keyu Long , Fei Wang , Chen Qian , Cheng Li , Zhouchen Lin , Hongbin Zha

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

Person re-identification (Re-ID) has been a significant research topic in the past decade due to its real-world applications and research significance. While supervised person Re-ID methods achieve superior performance over unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2021-10-05 Xiangtan Lin , Pengzhen Ren , Chung-Hsing Yeh , Lina Yao , Andy Song , Xiaojun Chang

Unsupervised Domain Adaptive (UDA) person search focuses on employing the model trained on a labeled source domain dataset to a target domain dataset without any additional annotations. Most effective UDA person search methods typically…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Linfeng Qi , Huibing Wang , Jiqing Zhang , Jinjia Peng , Yang Wang