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Text-based person search aims at retrieving target person in an image gallery using a descriptive sentence of that person. It is very challenging since modal gap makes effectively extracting discriminative features more difficult. Moreover,…

Computer Vision and Pattern Recognition · Computer Science 2021-01-11 Chenyang Gao , Guanyu Cai , Xinyang Jiang , Feng Zheng , Jun Zhang , Yifei Gong , Pai Peng , Xiaowei Guo , Xing Sun

A major challenge for physically unconstrained gaze estimation is acquiring training data with 3D gaze annotations for in-the-wild and outdoor scenarios. In contrast, videos of human interactions in unconstrained environments are abundantly…

Computer Vision and Pattern Recognition · Computer Science 2021-05-21 Rakshit Kothari , Shalini De Mello , Umar Iqbal , Wonmin Byeon , Seonwook Park , Jan Kautz

Weakly-supervised learning approaches have gained significant attention due to their ability to reduce the effort required for human annotations in training neural networks. This paper investigates a framework for weakly-supervised object…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Byeongkeun Kang , Sinhae Cha , Yeejin Lee

Although Person Re-Identification has made impressive progress, difficult cases like occlusion, change of view-pointand similar clothing still bring great challenges. Besides overall visual features, matching and comparing detailed…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Fufu Yu , Xinyang Jiang , Yifei Gong , Shizhen Zhao , Xiaowei Guo , Wei-Shi Zheng , Feng Zheng , Xing Sun

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

As a basic task of multi-camera surveillance system, person re-identification aims to re-identify a query pedestrian observed from non-overlapping multiple cameras or across different time with a single camera. Recently, deep learning-based…

Computer Vision and Pattern Recognition · Computer Science 2019-03-13 Di Wu , Kun Zhang , Fei Cheng , Yang Zhao , Qi Liu , Chang-An Yuan , De-Shuang Huang

Text-based person search (TBPS) aims at retrieving a target person from an image gallery with a descriptive text query. Solving such a fine-grained cross-modal retrieval task is challenging, which is further hampered by the lack of…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Xiao Han , Sen He , Li Zhang , Tao Xiang

As the global population ages, the number of fall-related incidents is on the rise. Effective fall detection systems, specifically in healthcare sector, are crucial to mitigate the risks associated with such events. This study evaluates the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Aleksander Nagaj , Zenjie Li , Dim P. Papadopoulos , Kamal Nasrollahi

Pixel-wise clean annotation is necessary for fully-supervised semantic segmentation, which is laborious and expensive to obtain. In this paper, we propose a weakly supervised 2D semantic segmentation model by incorporating sparse bounding…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Weixuan Sun , Jing Zhang , Nick Barnes

Human eyes can recognize person identities based on small salient regions, i.e. human saliency is distinctive and reliable in pedestrian matching across disjoint camera views. However, such valuable information is often hidden when…

Computer Vision and Pattern Recognition · Computer Science 2014-12-08 Rui Zhao , Wanli Ouyang , Xiaogang Wang

Person search is to detect all persons and identify the query persons from detected persons in the image without proposals and bounding boxes, which is different from person re-identification. In this paper, we propose a fusing multi-task…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Sulan Zhai , Shunqiang Liu , Xiao Wang , Jin Tang

State-of-the-art visual recognition and detection systems increasingly rely on large amounts of training data and complex classifiers. Therefore it becomes increasingly expensive both to manually annotate datasets and to keep running times…

Computer Vision and Pattern Recognition · Computer Science 2014-12-02 Stefan Mathe , Cristian Sminchisescu

Text-based person anomaly search retrieves specific behavioral events from surveillance archives using natural-language queries. Although recent pose-aware methods align geometric structures well, they face a fundamental Pose-Semantic Gap:…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Zequn Xie , Guijin Luo , Chuxin Wang , Sihang Cai , Tao Jin , Zhou Zhao , Yixuan Tang

Person re-identification (person Re-Id) aims to retrieve the pedestrian images of a same person that captured by disjoint and non-overlapping cameras. Lots of researchers recently focuse on this hot issue and propose deep learning based…

Computer Vision and Pattern Recognition · Computer Science 2019-06-06 Chengyuan Zhang , Lei Zhu , Shichao Zhang

Current state-of-the-art methods for object detection rely on annotated bounding boxes of large data sets for training. However, obtaining such annotations is expensive and can require up to hundreds of hours of manual labor. This poses a…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Hannah Kniesel , Leon Sick , Tristan Payer , Tim Bergner , Kavitha Shaga Devan , Clarissa Read , Paul Walther , Timo Ropinski

We propose an effective structured learning based approach to the problem of person re-identification which outperforms the current state-of-the-art on most benchmark data sets evaluated. Our framework is built on the basis of multiple…

Computer Vision and Pattern Recognition · Computer Science 2015-03-06 Sakrapee Paisitkriangkrai , Chunhua Shen , Anton van den Hengel

Weakly supervised semantic segmentation receives much research attention since it alleviates the need to obtain a large amount of dense pixel-wise ground-truth annotations for the training images. Compared with other forms of weak…

Computer Vision and Pattern Recognition · Computer Science 2018-03-08 Tianyi Zhang , Guosheng Lin , Jianfei Cai , Tong Shen , Chunhua Shen , Alex C. Kot

Camouflaged object detection (COD) from a single image is a challenging task due to the high similarity between objects and their surroundings. Existing fully supervised methods require labor-intensive pixel-level annotations, making weakly…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Xia Li , Xinran Liu , Lin Qi , Junyu Dong

Person re-identification (re-ID) is an important topic in computer vision. This paper studies the unsupervised setting of re-ID, which does not require any labeled information and thus is freely deployed to new scenarios. There are very few…

Computer Vision and Pattern Recognition · Computer Science 2020-04-08 Yutian Lin , Lingxi Xie , Yu Wu , Chenggang Yan , Qi Tian

Recent advances in deep learning greatly boost the performance of object detection. State-of-the-art methods such as Faster-RCNN, FPN and R-FCN have achieved high accuracy in challenging benchmark datasets. However, these methods require…

Computer Vision and Pattern Recognition · Computer Science 2019-08-15 Hao Yang , Hao Wu , Hao Chen
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