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Unsupervised video class incremental learning (uVCIL) represents an important learning paradigm for learning video information without forgetting, and without considering any data labels. Prior approaches have focused on supervised…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Nattapong Kurpukdee , Adrian G. Bors

Person re-identification (re-ID) has received great success with the supervised learning methods. However, the task of unsupervised cross-domain re-ID is still challenging. In this paper, we propose a Hard Samples Rectification (HSR)…

Computer Vision and Pattern Recognition · Computer Science 2021-06-15 Chih-Ting Liu , Man-Yu Lee , Tsai-Shien Chen , Shao-Yi Chien

Person Re-identification (Re-ID) has attracted great attention due to its promising real-world applications. However, in practice, it is always costly to annotate the training data to train a Re-ID model, and it still remains challenging to…

Computer Vision and Pattern Recognition · Computer Science 2022-06-03 Lantian Xue , Yixiong Zou , Peixi Peng , Yonghong Tian , Tiejun Huang

Unsupervised person re-identification (Re-Id) has attracted increasing attention due to its practical application in the read-world video surveillance system. The traditional unsupervised Re-Id are mostly based on the method alternating…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 De Cheng , Jingyu Zhou , Nannan Wang , Xinbo Gao

Annotating a large-scale image dataset is very tedious, yet necessary for training person re-identification models. To alleviate such a problem, we present an active hard sample mining framework via training an effective re-ID model with…

Computer Vision and Pattern Recognition · Computer Science 2020-04-15 Xin Xu , Lei Liu , Weifeng Liu , Meng Wang , Ruimin Hu

The recent person re-identification research has achieved great success by learning from a large number of labeled person images. On the other hand, the learned models often experience significant performance drops when applied to images…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Changgong Zhang , Fangneng Zhan

Recent successes in learning-based image classification, however, heavily rely on the large number of annotated training samples, which may require considerable human efforts. In this paper, we propose a novel active learning framework,…

Computer Vision and Pattern Recognition · Computer Science 2017-01-16 Keze Wang , Dongyu Zhang , Ya Li , Ruimao Zhang , Liang Lin

In this paper, we propose a novel unsupervised clustering approach exploiting the hidden information that is indirectly introduced through a pseudo classification objective. Specifically, we randomly assign a pseudo parent-class label to…

Machine Learning · Computer Science 2018-02-12 Ozsel Kilinc , Ismail Uysal

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

Unsupervised domain adaptive person re-identification (ReID) has been extensively investigated to mitigate the adverse effects of domain gaps. Those works assume the target domain data can be accessible all at once. However, for the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Zhipeng Huang , Zhizheng Zhang , Cuiling Lan , Wenjun Zeng , Peng Chu , Quanzeng You , Jiang Wang , Zicheng Liu , Zheng-jun Zha

While deep face recognition has benefited significantly from large-scale labeled data, current research is focused on leveraging unlabeled data to further boost performance, reducing the cost of human annotation. Prior work has mostly been…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Aruni RoyChowdhury , Xiang Yu , Kihyuk Sohn , Erik Learned-Miller , Manmohan Chandraker

Anomaly detection (AD), separating anomalies from normal data, has many applications across domains, from security to healthcare. While most previous works were shown to be effective for cases with fully or partially labeled data, that…

Machine Learning · Computer Science 2022-08-08 Jinsung Yoon , Kihyuk Sohn , Chun-Liang Li , Sercan O. Arik , Chen-Yu Lee , Tomas Pfister

Unsupervised person re-identification (ReID) is a challenging task without data annotation to guide discriminative learning. Existing methods attempt to solve this problem by clustering extracted embeddings to generate pseudo labels.…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Xue Li , Tengfei Liang , Yi Jin , Tao Wang , Yidong Li

The goal of unsupervised representation learning is to extract a new representation of data, such that solving many different tasks becomes easier. Existing methods typically focus on vectorized data and offer little support for relational…

Machine Learning · Statistics 2017-09-29 Sebastijan Dumancic , Hendrik Blockeel

Existing person re-identification (Re-ID) methods mostly follow a centralised learning paradigm which shares all training data to a collection for model learning. This paradigm is limited when data from different sources cannot be shared…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Shitong Sun , Guile Wu , Shaogang Gong

Unsupervised visible-infrared person re-identification (USL-VI-ReID) is of great research and practical significance yet remains challenging due to the absence of annotations. Existing approaches aim to learn modality-invariant…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Xiao Teng , Long Lan , Dingyao Chen , Kele Xu , Nan Yin

In this paper, we focus on the semi-supervised person re-identification (Re-ID) case, which only has the intra-camera (within-camera) labels but not inter-camera (cross-camera) labels. In real-world applications, these intra-camera labels…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Lei Qi , Lei Wang , Jing Huo , Yinghuan Shi , Yang Gao

Person re-identification (ReID) aims to re-identify a person from non-overlapping camera views. Since person ReID data contains sensitive personal information, researchers have adopted federated learning, an emerging distributed training…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-08-17 Weiming Zhuang , Yonggang Wen , Shuai Zhang

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

Continual learning (CL) aims to learn a sequence of tasks without forgetting the previously acquired knowledge. However, recent CL advances are restricted to supervised continual learning (SCL) scenarios. Consequently, they are not scalable…

Machine Learning · Computer Science 2022-04-06 Divyam Madaan , Jaehong Yoon , Yuanchun Li , Yunxin Liu , Sung Ju Hwang