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Large-scale pre-training has proven to be an effective method for improving performance across different tasks. Current person search methods use ImageNet pre-trained models for feature extraction, yet it is not an optimal solution due to…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Yanling Tian , Di Chen , Yunan Liu , Jian Yang , Shanshan Zhang

Human activity recognition (HAR) with deep learning models relies on large amounts of labeled data, often challenging to obtain due to associated cost, time, and labor. Self-supervised learning (SSL) has emerged as an effective approach to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Dominique Nshimyimana , Vitor Fortes Rey , Sungho Suh , Bo Zhou , Paul Lukowicz

This paper introduces a new matting task called human instance matting (HIM), which requires the pertinent model to automatically predict a precise alpha matte for each human instance. Straightforward combination of closely related…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Yanan Sun , Chi-Keung Tang , Yu-Wing Tai

Unsupervised person re-identification (Re-ID) is a promising and very challenging research problem in computer vision. Learning robust and discriminative features with unlabeled data is of central importance to Re-ID. Recently, more…

Computer Vision and Pattern Recognition · Computer Science 2022-05-12 Zheng Hu , Chuang Zhu , Gang He

Person re-identification is critical in surveillance applications. Current approaches rely on appearance based features extracted from a single or multiple shots of the target and candidate matches. These approaches are at a disadvantage…

Computer Vision and Pattern Recognition · Computer Science 2016-04-04 Mengran Gou , Xikang Zhang , Angels Rates-Borras , Sadjad Asghari-Esfeden , Mario Sznaier , Octavia Camps

Person re-identification (Re-ID) aims to match a target person across camera views at different locations and times. Existing Re-ID studies focus on the short-term cloth-consistent setting, under which a person re-appears in different…

Computer Vision and Pattern Recognition · Computer Science 2020-10-08 Xuelin Qian , Wenxuan Wang , Li Zhang , Fangrui Zhu , Yanwei Fu , Tao Xiang , Yu-Gang Jiang , Xiangyang Xue

Human keypoint detection from a single image is very challenging due to occlusion, blur, illumination and scale variance of person instances. In this paper, we find that context information plays an important role in addressing these…

Computer Vision and Pattern Recognition · Computer Science 2019-10-29 Jing Zhang , Zhe Chen , Dacheng Tao

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

Person re-identification (ReID) aims at matching persons across different views/scenes. In addition to accuracy, the matching efficiency has received more and more attention because of demanding applications using large-scale data. Several…

Computer Vision and Pattern Recognition · Computer Science 2018-04-09 Zheng Liu , Jie Qin , Annan Li , Yunhong Wang , Luc Van Gool

Person recognition aims at recognizing the same identity across time and space with complicated scenes and similar appearance. In this paper, we propose a novel method to address this task by training a network to obtain robust and…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Yu Liu , Hongyang Li , Xiaogang Wang

This paper aims at a newly raising task in visual surveillance: re-identifying people at a distance by matching body information, given several reference examples. Most of existing works solve this task by matching a reference template with…

Computer Vision and Pattern Recognition · Computer Science 2015-02-03 Yuanlu Xu , Liang Lin , Wei-Shi Zheng , Xiaobai Liu

We address the person re-identification problem by effectively exploiting a globally discriminative feature representation from a sequence of tracked human regions/patches. This is in contrast to previous person re-id works, which rely on…

Computer Vision and Pattern Recognition · Computer Science 2017-01-24 Yichao Yan , Bingbing Ni , Zhichao Song , Chao Ma , Yan Yan , Xiaokang Yang

Recent studies show that, both explicit deep feature matching as well as large-scale and diverse training data can significantly improve the generalization of person re-identification. However, the efficiency of learning deep matchers on…

Computer Vision and Pattern Recognition · Computer Science 2022-04-07 Shengcai Liao , Ling Shao

Person re-identification aims at establishing the identity of a pedestrian from a gallery that contains images of multiple people obtained from a multi-camera system. Many challenges such as occlusions, drastic lighting and pose variations…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Guodong Ding , Salman Khan , Zhenmin Tang , Fatih Porikli

Most video surveillance systems use both RGB and infrared cameras, making it a vital technique to re-identify a person cross the RGB and infrared modalities. This task can be challenging due to both the cross-modality variations caused by…

Computer Vision and Pattern Recognition · Computer Science 2019-08-15 Jian-Wu Lin , Hao Li

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

We explore the task of recognizing peoples' identities in photo albums in an unconstrained setting. To facilitate this, we introduce the new People In Photo Albums (PIPA) dataset, consisting of over 60000 instances of 2000 individuals…

Computer Vision and Pattern Recognition · Computer Science 2015-02-02 Ning Zhang , Manohar Paluri , Yaniv Taigman , Rob Fergus , Lubomir Bourdev

Capturing the diversity of people in images is challenging: recent literature tends to focus on diversifying one or two attributes, requiring expensive attribute labels or building classifiers. We introduce a diverse people image ranking…

Computer Vision and Pattern Recognition · Computer Science 2024-01-26 Hansa Srinivasan , Candice Schumann , Aradhana Sinha , David Madras , Gbolahan Oluwafemi Olanubi , Alex Beutel , Susanna Ricco , Jilin Chen

This work addresses the task of long-term person re-identification. Typically, person re-identification assumes that people do not change their clothes, which limits its applications to short-term scenarios. To overcome this limitation, we…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Duy Tran Thanh , Yeejin Lee , Byeongkeun Kang

Existing person re-identification benchmarks and methods mainly focus on matching cropped pedestrian images between queries and candidates. However, it is different from real-world scenarios where the annotations of pedestrian bounding…

Computer Vision and Pattern Recognition · Computer Science 2017-04-07 Tong Xiao , Shuang Li , Bochao Wang , Liang Lin , Xiaogang Wang