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Text-based person retrieval aims to identify a target individual from an image gallery using a natural language description. Existing methods primarily focus on appearance-driven cross-modal retrieval, yet face significant challenges due to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Yingjia Xu , Jinlin Wu , Daming Gao , Zhen Chen , Yang Yang , Min Cao , Mang Ye , Zhen Lei

We consider the problem of person search in unconstrained scene images. Existing methods usually focus on improving the person detection accuracy to mitigate negative effects imposed by misalignment, mis-detections, and false alarms…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Xu Lan , Xiatian Zhu , Shaogang Gong

In this paper, we study the problem of image-text matching. Inferring the latent semantic alignment between objects or other salient stuff (e.g. snow, sky, lawn) and the corresponding words in sentences allows to capture fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Kuang-Huei Lee , Xi Chen , Gang Hua , Houdong Hu , Xiaodong He

In contrastive self-supervised learning, the common way to learn discriminative representation is to pull different augmented "views" of the same image closer while pushing all other images further apart, which has been proven to be…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Kaiyou Song , Shan Zhang , Zihao An , Zimeng Luo , Tong Wang , Jin Xie

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 paper presents the HFUT-LMC team's solution to the WWW 2025 challenge on Text-based Person Anomaly Search (TPAS). The primary objective of this challenge is to accurately identify pedestrians exhibiting either normal or abnormal…

Computer Vision and Pattern Recognition · Computer Science 2025-02-06 Jiayi He , Shengeng Tang , Ao Liu , Lechao Cheng , Jingjing Wu , Yanyan Wei

Instance-level alignment is widely exploited for person re-identification, e.g. spatial alignment, latent semantic alignment and triplet alignment. This paper probes another feature alignment modality, namely cluster-level feature alignment…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Qiuyu Chen , Wei Zhang , Jianping Fan

Text-Based Person Search (TBPS) aims to retrieve pedestrian images from large galleries using natural language descriptions. This task, essential for public safety applications, is hindered by cross-modal discrepancies and ambiguous user…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Zequn Xie

In recent years, the dominant paradigm for text spotting is to combine the tasks of text detection and recognition into a single end-to-end framework. Under this paradigm, both tasks are accomplished by operating over a shared global…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Roi Ronen , Shahar Tsiper , Oron Anschel , Inbal Lavi , Amir Markovitz , R. Manmatha

An intuitive way to search for images is to use queries composed of an example image and a complementary text. While the first provides rich and implicit context for the search, the latter explicitly calls for new traits, or specifies how…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Ginger Delmas , Rafael Sampaio de Rezende , Gabriela Csurka , Diane Larlus

This study addresses an image-matching problem in challenging cases, such as large scene variations or textureless scenes. To gain robustness to such situations, most previous studies have attempted to encode the global contexts of a scene…

Computer Vision and Pattern Recognition · Computer Science 2023-06-30 Khang Truong Giang , Soohwan Song , Sungho Jo

To retrieve more relevant, appropriate and useful documents given a query, finding clues about that query through the text is crucial. Recent deep learning models regard the task as a term-level matching problem, which seeks exact or…

Information Retrieval · Computer Science 2021-02-01 Yufeng Zhang , Jinghao Zhang , Zeyu Cui , Shu Wu , Liang Wang

Conventional approaches to image-text retrieval mainly focus on indexing visual objects appearing in pictures but ignore the interactions between these objects. Such objects occurrences and interactions are equivalently useful and important…

Computer Vision and Pattern Recognition · Computer Science 2021-06-07 Manh-Duy Nguyen , Binh T. Nguyen , Cathal Gurrin

Person search aims to simultaneously localize and identify a query person from realistic, uncropped images, which can be regarded as the unified task of pedestrian detection and person re-identification (re-id). Most existing works employ…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Yichao Yan , Jinpeng Li , Jie Qin , Song Bai , Shengcai Liao , Li Liu , Fan Zhu , Ling Shao

This study proposes a text classification algorithm based on large language models, aiming to address the limitations of traditional methods in capturing long-range dependencies, understanding contextual semantics, and handling class…

Computation and Language · Computer Science 2025-12-11 Ning Lyu , Yuxi Wang , Feng Chen , Qingyuan Zhang

Traditional semantic image search methods aim to retrieve images that match the meaning of the text query. However, these methods typically search for objects on the whole image, without considering the localization of objects within the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-13 Silvan Ferreira , Allan Martins , Ivanovitch Silva

Local feature extraction is a standard approach in computer vision for tackling important tasks such as image matching and retrieval. The core assumption of most methods is that images undergo affine transformations, disregarding more…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Guilherme Potje , Felipe Cadar , Andre Araujo , Renato Martins , Erickson R. Nascimento

Image-text matching plays a central role in bridging the semantic gap between vision and language. The key point to achieve precise visual-semantic alignment lies in capturing the fine-grained cross-modal correspondence between image and…

Computer Vision and Pattern Recognition · Computer Science 2021-06-14 Zhong Ji , Kexin Chen , Haoran Wang

This paper studies a text classification algorithm based on an improved Transformer to improve the performance and efficiency of the model in text classification tasks. Aiming at the shortcomings of the traditional Transformer model in…

Computation and Language · Computer Science 2025-01-24 Jia Gao , Guiran Liu , Binrong Zhu , Shicheng Zhou , Hongye Zheng , Xiaoxuan Liao

Searching persons in large-scale image databases with the query of natural language description has important applications in video surveillance. Existing methods mainly focused on searching persons with image-based or attribute-based…

Computer Vision and Pattern Recognition · Computer Science 2017-03-31 Shuang Li , Tong Xiao , Hongsheng Li , Bolei Zhou , Dayu Yue , Xiaogang Wang