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Human intelligence can retrieve any person according to both visual and language descriptions. However, the current computer vision community studies specific person re-identification (ReID) tasks in different scenarios separately, which…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Weizhen He , Yiheng Deng , Shixiang Tang , Qihao Chen , Qingsong Xie , Yizhou Wang , Lei Bai , Feng Zhu , Rui Zhao , Wanli Ouyang , Donglian Qi , Yunfeng Yan

Person Re-Identification (ReID) matches pedestrians across disjoint cameras. Existing ReID methods adopting real-value feature descriptors have achieved high accuracy, but they are low in efficiency due to the slow Euclidean distance…

Computer Vision and Pattern Recognition · Computer Science 2022-07-14 Qingze Yin , Guanan Wang , Guodong Ding , Qilei Li , Shaogang Gong , Zhenmin Tang

Video-based person re-identification matches video clips of people across non-overlapping cameras. Most existing methods tackle this problem by encoding each video frame in its entirety and computing an aggregate representation across all…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Shuang Li , Slawomir Bak , Peter Carr , Xiaogang Wang

Relighting of human images has various applications in image synthesis. For relighting, we must infer albedo, shape, and illumination from a human portrait. Previous techniques rely on human faces for this inference, based on spherical…

Graphics · Computer Science 2019-08-12 Yoshihiro Kanamori , Yuki Endo

Pedestrian detection in the wild remains a challenging problem especially when the scene contains significant occlusion and/or low resolution of the pedestrians to be detected. Existing methods are unable to adapt to these difficult cases…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Tianliang Zhang , Zhenjun Han , Huijuan Xu , Baochang Zhang , Qixiang Ye

We present a novel large-scale dataset and comprehensive baselines for end-to-end pedestrian detection and person recognition in raw video frames. Our baselines address three issues: the performance of various combinations of detectors and…

Computer Vision and Pattern Recognition · Computer Science 2017-04-07 Liang Zheng , Hengheng Zhang , Shaoyan Sun , Manmohan Chandraker , Yi Yang , Qi Tian

Person re-identification (re-ID) is a task of matching pedestrians under disjoint camera views. To recognise paired snapshots, it has to cope with large cross-view variations caused by the camera view shift. Supervised deep neural networks…

Computer Vision and Pattern Recognition · Computer Science 2019-07-24 Lin Wu , Richang Hong , Yang Wang , Meng Wang

Person re-identification (ReID) remains a very difficult challenge in computer vision, and critical for large-scale video surveillance scenarios where an individual could appear in different camera views at different times. There has been…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Devinder Kumar , Parthipan Siva , Paul Marchwica , Alexander Wong

Person Re-identification (ReID) is to identify the same person across different cameras. It is a challenging task due to the large variations in person pose, occlusion, background clutter, etc How to extract powerful features is a…

Computer Vision and Pattern Recognition · Computer Science 2017-10-19 Dangwei Li , Xiaotang Chen , Zhang Zhang , Kaiqi Huang

Person Re-Identification (ReID) is a challenging problem in many video analytics and surveillance applications, where a person's identity must be associated across a distributed non-overlapping network of cameras. Video-based person ReID…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Madhu Kiran , Amran Bhuiyan , Louis-Antoine Blais-Morin , Mehrsan Javan , Ismail Ben Ayed , Eric Granger

Person re-identification (ReID) in surveillance is challenged by occlusion, viewpoint distortion, and poor image quality. Most existing methods rely on complex modules or perform well only on clear frontal images. We propose Sh-ViT…

Computer Vision and Pattern Recognition · Computer Science 2025-11-03 Bo Li , Duyuan Zheng , Xinyang Liu , Qingwen Li , Hong Li , Hongyan Cui , Ge Gao , Chen Liu

Person retrieval faces many challenges including cluttered background, appearance variations (e.g., illumination, pose, occlusion) among different camera views and the similarity among different person's images. To address these issues, we…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Lei Qi , Jing Huo , Lei Wang , Yinghuan Shi , Yang Gao

Identifying the same individual across different scenes is an important yet difficult task in intelligent video surveillance. Its main difficulty lies in how to preserve similarity of the same person against large appearance and structure…

Computer Vision and Pattern Recognition · Computer Science 2015-12-14 Shengyong Ding , Liang Lin , Guangrun Wang , Hongyang Chao

Person re-identification aims to identify whether pairs of images belong to the same person or not. This problem is challenging due to large differences in camera views, lighting and background. One of the mainstream in learning CNN…

Computer Vision and Pattern Recognition · Computer Science 2019-12-12 Weinong Wang , Wenjie Pei , Qiong Cao , Shu Liu , Yu-Wing Tai

We propose a Pose-Free Large Reconstruction Model (PF-LRM) for reconstructing a 3D object from a few unposed images even with little visual overlap, while simultaneously estimating the relative camera poses in ~1.3 seconds on a single A100…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Peng Wang , Hao Tan , Sai Bi , Yinghao Xu , Fujun Luan , Kalyan Sunkavalli , Wenping Wang , Zexiang Xu , Kai Zhang

We present a new end-to-end learning framework to obtain detailed and spatially coherent reconstructions of multiple people from a single image. Existing multi-person methods suffer from two main drawbacks: they are often model-based and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Armin Mustafa , Akin Caliskan , Lourdes Agapito , Adrian Hilton

Most existing person re-identification (re-id) models focus on matching still person images across disjoint camera views. Since only limited information can be exploited from still images, it is hard (if not impossible) to overcome the…

Computer Vision and Pattern Recognition · Computer Science 2016-07-08 Jinjie You , Ancong Wu , Xiang Li , Wei-Shi Zheng

Intelligent video-surveillance (IVS) is currently an active research field in computer vision and machine learning and provides useful tools for surveillance operators and forensic video investigators. Person re-identification (PReID) is…

Computer Vision and Pattern Recognition · Computer Science 2020-05-04 Bahram Lavi , Ihsan Ullah , Mehdi Fatan , Anderson Rocha

People live in a 3D world. However, existing works on person re-identification (re-id) mostly consider the semantic representation learning in a 2D space, intrinsically limiting the understanding of people. In this work, we address this…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Zhedong Zheng , Nenggan Zheng , Yi Yang

Person re-identification (ReID) aims to extract accurate identity representation features. However, during feature extraction, individual samples are inevitably affected by noise (background, occlusions, and model limitations). Considering…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Chao Yuan , Guiwei Zhang , Changxiao Ma , Tianyi Zhang , Guanglin Niu