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Unsupervised visible-infrared person re-identification (UVI-ReID) aims to retrieve pedestrian images across different modalities without costly annotations, but faces challenges due to the modality gap and lack of supervision. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Yongxiang Li , Yuan Sun , Yang Qin , Dezhong Peng , Xi Peng , Peng Hu

Large Vision-Language Models (LVLMs) have shown significant progress in video understanding, yet they face substantial challenges in tasks requiring precise spatiotemporal localization at the instance level. Existing methods primarily rely…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Yiming Zhao , Yu Zeng , Wenxuan Huang , Zhen Fang , Qing Miao , Qisheng Su , Jiawei Zhao , Jiayin Cai , Lin Chen , Zehui Chen , Yukun Qi , Yao Hu , Xiaolong Jiang , Feng Zhao

Re-Identification (ReID) is a critical technology in intelligent perception systems, especially within autonomous driving, where onboard cameras must identify pedestrians across views and time in real-time to support safe navigation and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Jialin Li , Shuqi Wu , Ning Wang

Person Re-identification is a research area with significant real world applications. Despite recent progress, existing methods face challenges in robust re-identification in the wild, e.g., by focusing only on a particular modality and on…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Siyuan Huang , Ram Prabhakar , Yuxiang Guo , Rama Chellappa , Cheng Peng

Weakly-supervised methods for video anomaly detection (VAD) are conventionally based merely on RGB spatio-temporal features, which continues to limit their reliability in real-world scenarios. This is due to the fact that RGB-features are…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Snehashis Majhi , Giacomo D'Amicantonio , Antitza Dantcheva , Quan Kong , Lorenzo Garattoni , Gianpiero Francesca , Egor Bondarev , Francois Bremond

Object-aware reasoning in vision-language tasks poses significant challenges for current models, particularly in handling unseen objects, reducing hallucinations, and capturing fine-grained relationships in complex visual scenes. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Antonio Carlos Rivera , Anthony Moore , Steven Robinson

Contrastive Language-Image Pre-Training (CLIP) model excels in traditional person re-identification (ReID) tasks due to its inherent advantage in generating textual descriptions for pedestrian images. However, applying CLIP directly to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Xuan Tan , Xun Gong , Yang Xiang

With recent progress in joint modeling of visual and textual representations, Vision-Language Pretraining (VLP) has achieved impressive performance on many multimodal downstream tasks. However, the requirement for expensive annotations…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Zirui Wang , Jiahui Yu , Adams Wei Yu , Zihang Dai , Yulia Tsvetkov , Yuan Cao

Vision-language models (VLMs) excel in visual understanding but often lack reliable grounding capabilities and actionable inference rates. Integrating them with open-vocabulary object detection (OVD), instance segmentation, and tracking…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Bastian Pätzold , Jan Nogga , Sven Behnke

Video-based person re-identification (Re-ID) aims at matching video sequences of pedestrians across non-overlapping cameras. It is a practical yet challenging task of how to embed spatial and temporal information of a video into its feature…

Computer Vision and Pattern Recognition · Computer Science 2019-08-06 Chih-Ting Liu , Chih-Wei Wu , Yu-Chiang Frank Wang , Shao-Yi Chien

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

Text-based Person Search (TPS), is targeted on retrieving pedestrians to match text descriptions instead of query images. Recent Vision-Language Pre-training (VLP) models can bring transferable knowledge to downstream TPS tasks, resulting…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Guanshuo Wang , Fufu Yu , Junjie Li , Qiong Jia , Shouhong Ding

Vision-language pre-training (VLP) on large-scale image-text pairs has recently witnessed rapid progress for learning cross-modal representations. Existing pre-training methods either directly concatenate image representation and text…

Computation and Language · Computer Science 2021-03-16 Chenliang Li , Ming Yan , Haiyang Xu , Fuli Luo , Wei Wang , Bin Bi , Songfang Huang

Image-based visual-language (I-VL) pre-training has shown great success for learning joint visual-textual representations from large-scale web data, revealing remarkable ability for zero-shot generalisation. This paper presents a simple but…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Chen Ju , Tengda Han , Kunhao Zheng , Ya Zhang , Weidi Xie

Autonomous driving systems often infer pedestrian yielding behavior from geometric and kinematic cues alone, limiting their ability to reason about visual scene context and age-dependent behavioral variability. This limitation can produce…

Systems and Control · Electrical Eng. & Systems 2026-04-28 Qingwen Pu , Kun Xie , Yuxiang Liu

Lifelong person re-identification attempts to recognize people across cameras and integrate new knowledge from continuous data streams. Key challenges involve addressing catastrophic forgetting caused by parameter updating and domain shift,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Hongyu Chen , Bingliang Jiao , Wenxuan Wang , Peng Wang

Open-world object counting leverages the robust text-image alignment of pre-trained vision-language models (VLMs) to enable counting of arbitrary categories in images specified by textual queries. However, widely adopted naive fine-tuning…

Computer Vision and Pattern Recognition · Computer Science 2025-04-25 Yiming Zhao , Guorong Li , Laiyun Qing , Amin Beheshti , Jian Yang , Michael Sheng , Yuankai Qi , Qingming Huang

Any-Time Person Re-identification (AT-ReID) necessitates the robust retrieval of target individuals under arbitrary conditions, encompassing both modality shifts (daytime and nighttime) and extensive clothing-change scenarios, ranging from…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Jiaxuan Li , Xin Wen , Zhihang Li

Multimodal large language models (MLLMs) have enabled a wide range of advanced vision-language applications, including fine-grained object recognition and contextual understanding. When querying specific regions or objects in an image,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Mingjie Xu , Jinpeng Chen , Yuzhi Zhao , Jason Chun Lok Li , Yue Qiu , Zekang Du , Mengyang Wu , Pingping Zhang , Kun Li , Hongzheng Yang , Wenao Ma , Jiaheng Wei , Qinbin Li , Kangcheng Liu , Wenqiang Lei

Pedestrian Attribute Recognition (PAR) involves predicting fine-grained attributes such as clothing color, gender, and accessories from pedestrian imagery, yet is hindered by severe class imbalance, intricate attribute co-dependencies, and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Abdellah Zakaria Sellam , Salah Eddine Bekhouche , Fadi Dornaika , Cosimo Distante , Abdenour Hadid