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Given a target image as query, person re-identification systems retrieve a ranked list of candidate matches on a per-camera basis. In deployed systems, a human operator scans these lists and labels sighted targets by touch or mouse-based…

Computer Vision and Pattern Recognition · Computer Science 2019-12-06 K L Navaneet , Ravi Kiran Sarvadevabhatla , Shashank Shekhar , R. Venkatesh Babu , Anirban Chakraborty

Person re-identification (re-ID) concerns the matching of subject images across different camera views in a multi camera surveillance system. One of the major challenges in person re-ID is pose variations across the camera network, which…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Amena Khatun , Simon Denman , Sridha Sridharan , Clinton Fookes

Existing person re-identification (ReID) methods typically directly load the pre-trained ImageNet weights for initialization. However, as a fine-grained classification task, ReID is more challenging and exists a large domain gap between…

Computer Vision and Pattern Recognition · Computer Science 2021-12-02 Zizheng Yang , Xin Jin , Kecheng Zheng , Feng Zhao

Person Re-IDentification (Re-ID) as a retrieval task, has achieved tremendous development over the past decade. Existing state-of-the-art methods follow an analogous framework to first extract features from the input images and then…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Qizao Wang , Xuelin Qian , Bin Li , Yanwei Fu , Xiangyang Xue

Person re-identification (re-id) is a cross-camera retrieval task which establishes a correspondence between images of a person from multiple cameras. Deep Learning methods have been successfully applied to this problem and have achieved…

Computer Vision and Pattern Recognition · Computer Science 2019-03-06 Jean-Paul Ainam , Ke Qin , Guisong Liu , Guangchun Luo

Learning identity-discriminative representations with multi-scene generality has become a critical objective in person re-identification (ReID). However, mainstream perception-driven paradigms tend to identify fitting from massive annotated…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Quan Zhang , Jingze Wu , Jialong Wang , Xiaohua Xie , Jianhuang Lai , Hongbo Chen

Person re-identification (re-ID) has become increasingly popular in the community due to its application and research significance. It aims at spotting a person of interest in other cameras. In the early days, hand-crafted algorithms and…

Computer Vision and Pattern Recognition · Computer Science 2016-10-11 Liang Zheng , Yi Yang , Alexander G. Hauptmann

Person re-identification has received a lot of attention from the research community in recent times. Due to its vital role in security based applications, person re-identification lies at the heart of research relevant to tracking…

Computer Vision and Pattern Recognition · Computer Science 2020-12-25 Ankit Yadav , Dinesh Kumar Vishwakarma

Person re-identification (Re-ID) benefits greatly from the accurate annotations of existing datasets (e.g., CUHK03 [1] and Market-1501 [2]), which are quite expensive because each image in these datasets has to be assigned with a proper…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Guangrun Wang , Guangcong Wang , Xujie Zhang , Jianhuang Lai , Zhengtao Yu , Liang Lin

Beyond high-fidelity image synthesis, diffusion models have recently exhibited promising results in dense visual perception tasks. However, most existing work treats diffusion models as a standalone component for perception tasks, employing…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Shuhong Zheng , Zhipeng Bao , Ruoyu Zhao , Martial Hebert , Yu-Xiong Wang

Person re-identification (reID) is an important task that requires to retrieve a person's images from an image dataset, given one image of the person of interest. For learning robust person features, the pose variation of person images is…

Computer Vision and Pattern Recognition · Computer Science 2018-12-13 Yixiao Ge , Zhuowan Li , Haiyu Zhao , Guojun Yin , Shuai Yi , Xiaogang Wang , Hongsheng Li

Nowadays, real data in person re-identification (ReID) task is facing privacy issues, e.g., the banned dataset DukeMTMC-ReID. Thus it becomes much harder to collect real data for ReID task. Meanwhile, the labor cost of labeling ReID data is…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Kai Chen , Weihua Chen , Tao He , Rong Du , Fan Wang , Xiuyu Sun , Yuchen Guo , Guiguang Ding

Diffusion models have become a mainstream approach for high-resolution image synthesis. However, directly generating higher-resolution images from pretrained diffusion models will encounter unreasonable object duplication and exponentially…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Shen Zhang , Zhaowei Chen , Zhenyu Zhao , Yuhao Chen , Yao Tang , Jiajun Liang

Person re-identification (Re-ID) has become increasingly important as it supports a wide range of security applications. Traditional person Re-ID mainly relies on optical camera-based systems, which incur several limitations due to the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Yili Ren , Jie Yang

Person re-identification (Re-ID) is one of the primary components of an automated visual surveillance system. It aims to automatically identify/search persons in a multi-camera network having non-overlapping field-of-views. Owing to its…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Asmat Zahra , Nazia Perwaiz , Muhammad Shahzad , Muhammad Moazam Fraz

Lifelong person re-identification (LReID) aims to continuously adapt to new domains while mitigating catastrophic forgetting. While replay-based methods effectively alleviate forgetting, they are constrained by strict memory budgets,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Mingyu Wang , Wei Jiang , Haojie Liu , Zhiyong Li , Q. M. Jonathan Wu

Contemporary person re-identification (\reid) methods usually require access to data from the deployment camera network during training in order to perform well. This is because contemporary \reid{} models trained on one dataset do not…

Computer Vision and Pattern Recognition · Computer Science 2019-07-23 Jieru Jia , Qiuqi Ruan , Timothy M. Hospedales

We address the problem of person re-identification (reID), that is, retrieving person images from a large dataset, given a query image of the person of interest. A key challenge is to learn person representations robust to intra-class…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Chanho Eom , Wonkyung Lee , Geon Lee , Bumsub Ham

We introduce SynthLight, a diffusion model for portrait relighting. Our approach frames image relighting as a re-rendering problem, where pixels are transformed in response to changes in environmental lighting conditions. Using a…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Sumit Chaturvedi , Mengwei Ren , Yannick Hold-Geoffroy , Jingyuan Liu , Julie Dorsey , Zhixin Shu

Person Re-identification (re-id) aims to match people across non-overlapping camera views in a public space. It is a challenging problem because many people captured in surveillance videos wear similar clothes. Consequently, the differences…

Computer Vision and Pattern Recognition · Computer Science 2017-09-18 Xuelin Qian , Yanwei Fu , Yu-Gang Jiang , Tao Xiang , Xiangyang Xue