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Cross-spectral person re-identification, which aims to associate identities to pedestrians across different spectra, faces a main challenge of the modality discrepancy. In this paper, we address the problem from both image-level and…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Lei Tan , Yukang Zhang , Shengmei Shen , Yan Wang , Pingyang Dai , Xianming Lin , Yongjian Wu , Rongrong Ji

Large-scale vision-language models (e.g., CLIP) have recently achieved remarkable performance in retrieval tasks, yet their potential for Video-based Visible-Infrared Person Re-Identification (VVI-ReID) remains largely unexplored. The…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Chenyang Yu , Xuehu Liu , Pingping Zhang , Huchuan Lu

Generalizable person Re-Identification (ReID) has attracted growing attention in recent computer vision community. In this work, we construct a structural causal model among identity labels, identity-specific factors (clothes/shoes color…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Yi-Fan Zhang , Zhang Zhang , Da Li , Zhen Jia , Liang Wang , Tieniu Tan

Object re-identification is of increasing importance in visual surveillance. Most existing works focus on re-identify individual from multiple cameras while the application of group re-identification (Re-ID) is rarely discussed. We redefine…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Hao Xiao

The domain shift, coming from unneglectable modality gap and non-overlapped identity classes between training and test sets, is a major issue of RGB-Infrared person re-identification. A key to tackle the inherent issue -- domain shift -- is…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Feng Chen , Fei Wu , Qi Wu , Zhiguo Wan

Person re-identification (reID) aims to match person images to retrieve the ones with the same identity. This is a challenging task, as the images to be matched are generally semantically misaligned due to the diversity of human poses and…

Computer Vision and Pattern Recognition · Computer Science 2020-03-19 Xin Jin , Cuiling Lan , Wenjun Zeng , Guoqiang Wei , Zhibo Chen

Fine-grained text-to-image retrieval aims to retrieve a fine-grained target image with a given text query. Existing methods typically assume that each training image is accurately depicted by its textual descriptions. However, textual…

Computer Vision and Pattern Recognition · Computer Science 2025-04-11 Zehong Ma , Hao Chen , Wei Zeng , Limin Su , Shiliang Zhang

Visible-infrared person re-identification (VI-ReID) aims to match individuals across different camera modalities, a critical task in modern surveillance systems. While current VI-ReID methods focus on cross-modality matching, real-world…

Computer Vision and Pattern Recognition · Computer Science 2025-01-24 Mahdi Alehdaghi , Rajarshi Bhattacharya , Pourya Shamsolmoali , Rafael M. O. Cruz , Eric Granger

We address the problem of visible-infrared person re-identification (VI-reID), that is, retrieving a set of person images, captured by visible or infrared cameras, in a cross-modal setting. Two main challenges in VI-reID are intra-class…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Hyunjong Park , Sanghoon Lee , Junghyup Lee , Bumsub Ham

Visual perception of a person is easily influenced by many factors such as camera parameters, pose and viewpoint variations. These variations make person Re-Identification (ReID) a challenging problem. Nevertheless, human attributes usually…

Computer Vision and Pattern Recognition · Computer Science 2021-08-11 Fariborz Taherkhani , Ali Dabouei , Sobhan Soleymani , Jeremy Dawson , Nasser M. Nasrabadi

Unsupervised domain adaptive (UDA) person re-identification (ReID) has gained increasing attention for its effectiveness on the target domain without manual annotations. Most fine-tuning based UDA person ReID methods focus on encoding…

Computer Vision and Pattern Recognition · Computer Science 2022-05-20 Jin Ding , Xue Zhou

The task of person re-identification (ReID) is to match images of the same person over multiple non-overlapping camera views. Due to the variations in visual factors, previous works have investigated how the person identity, body parts, and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Binh X. Nguyen , Binh D. Nguyen , Tuong Do , Erman Tjiputra , Quang D. Tran , Anh Nguyen

Multimodal large language models (MLLM) have achieved satisfactory results in many tasks. However, their performance in the task of ReID (ReID) has not been explored to date. This paper will investigate how to adapt them for the task of…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Shan Yang , Yongfei Zhang

Hard samples pose a significant challenge in person re-identification (ReID) tasks, particularly in clothing-changing person Re-ID (CC-ReID). Their inherent ambiguity or similarity, coupled with the lack of explicit definitions, makes them…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Hankun Liu , Yujian Zhao , Guanglin Niu

TIReID aims to retrieve the image corresponding to the given text query from a pool of candidate images. Existing methods employ prior knowledge from single-modality pre-training to facilitate learning, but lack multi-modal correspondences.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Shuanglin Yan , Neng Dong , Liyan Zhang , Jinhui Tang

Generalizable person re-identification (Re-ID) is a very hot research topic in machine learning and computer vision, which plays a significant role in realistic scenarios due to its various applications in public security and video…

Computer Vision and Pattern Recognition · Computer Science 2023-04-20 Suncheng Xiang , Jingsheng Gao , Mengyuan Guan , Jiacheng Ruan , Chengfeng Zhou , Ting Liu , Dahong Qian , Yuzhuo Fu

Recently, the research interest of person re-identification (ReID) has gradually turned to video-based methods, which acquire a person representation by aggregating frame features of an entire video. However, existing video-based ReID…

Computer Vision and Pattern Recognition · Computer Science 2020-09-14 Xinyang Jiang , Yifei Gong , Xiaowei Guo , Qize Yang , Feiyue Huang , Weishi Zheng , Feng Zheng , Xing Sun

Text-to-Image Person Retrieval (TIPR) aims to retrieve person images based on natural language descriptions. Although many TIPR methods have achieved promising results, sometimes textual queries cannot accurately and comprehensively reflect…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Hao Zou , Runqing Zhang , Xue Zhou , Jianxiao Zou

Both fine-grained discriminative details and global semantic features can contribute to solving person re-identification challenges, such as occlusion and pose variations. Vision foundation models (\textit{e.g.}, DINO) excel at mining local…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Ying Shu , Pujian Zhan , Huiqi Yang , Hehe Fan , Youfang Lin , Kai Lv

Visible-infrared cross-modality person re-identification is a challenging ReID task, which aims to retrieve and match the same identity's images between the heterogeneous visible and infrared modalities. Thus, the core of this task is to…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Tengfei Liang , Yi Jin , Yajun Gao , Wu Liu , Songhe Feng , Tao Wang , Yidong Li