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The Visual Language Model, known for its robust cross-modal capabilities, has been extensively applied in various computer vision tasks. In this paper, we explore the use of CLIP (Contrastive Language-Image Pretraining), a vision-language…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Huazhong Zhao , Lei Qi , Xin Geng

TIReID aims to retrieve the image corresponding to the given text query from a pool of candidate images. Existing methods employ prior knowledge from single-modality pre-training to facilitate learning, but lack multi-modal correspondences.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Shuanglin Yan , Neng Dong , Liyan Zhang , Jinhui Tang

Person re-identification (ReID) has recently benefited from large pretrained vision-language models such as Contrastive Language-Image Pre-Training (CLIP). However, the absence of concrete descriptions necessitates the use of implicit text…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Qianru Han , Xinwei He , Zhi Liu , Sannyuya Liu , Ying Zhang , Jinhai Xiang

This paper tackles the challenge of detecting partially manipulated facial deepfakes, which involve subtle alterations to specific facial features while retaining the overall context, posing a greater detection difficulty than fully…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Andrii Yermakov , Jan Cech , Jiri Matas

The rapid development of photo-realistic face generation methods has raised significant concerns in society and academia, highlighting the urgent need for robust and generalizable face forgery detection (FFD) techniques. Although existing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Yaning Zhang , Tianyi Wang , Zitong Yu , Zan Gao , Linlin Shen , Shengyong Chen

Language-image pre-training is an effective technique for learning powerful representations in general domains. However, when directly turning to person representation learning, these general pre-training methods suffer from unsatisfactory…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Jialong Zuo , Jiahao Hong , Feng Zhang , Changqian Yu , Hanyu Zhou , Changxin Gao , Nong Sang , Jingdong Wang

Although Contrastive Language-Image Pre-training (CLIP) exhibits strong performance across diverse vision tasks, its application to person representation learning faces two critical challenges: (i) the scarcity of large-scale annotated…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Tianlu Zheng , Yifan Zhang , Xiang An , Ziyong Feng , Kaicheng Yang , Qichuan Ding

Recent advancements in deep learning have significantly enhanced content-based retrieval methods, notably through models like CLIP that map images and texts into a shared embedding space. However, these methods often struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Nicola Messina , Lucia Vadicamo , Leo Maltese , Claudio Gennaro

Pre-trained vision-language models like CLIP have recently shown superior performances on various downstream tasks, including image classification and segmentation. However, in fine-grained image re-identification (ReID), the labels are…

Computer Vision and Pattern Recognition · Computer Science 2023-01-03 Siyuan Li , Li Sun , Qingli Li

This paper introduces a novel approach to person identification using hand images, designed specifically for criminal investigations. The method is particularly valuable in serious crimes such as sexual abuse, where hand images are often…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Nathanael L. Baisa , Babu Pallam , Amudhavel Jayavel

Contrastive Language-Image Pre-training (CLIP) excels in multimodal tasks such as image-text retrieval and zero-shot classification but struggles with fine-grained understanding due to its focus on coarse-grained short captions. To address…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Chunyu Xie , Bin Wang , Fanjing Kong , Jincheng Li , Dawei Liang , Gengshen Zhang , Dawei Leng , Yuhui Yin

In this work, we propose an end-to-end constrained clustering scheme to tackle the person re-identification (re-id) problem. Deep neural networks (DNN) have recently proven to be effective on person re-identification task. In particular,…

Computer Vision and Pattern Recognition · Computer Science 2019-06-20 Leulseged Tesfaye Alemu , Marcello Pelillo , Mubarak Shah

This work aims to adapt large-scale pre-trained vision-language models, such as contrastive language-image pretraining (CLIP), to enhance the performance of object reidentification (Re-ID) across various supervision settings. Although…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Jiachen Li , Xiaojin Gong

Text-based Person Search (TBPS) aims to retrieve the person images using natural language descriptions. Recently, Contrastive Language Image Pretraining (CLIP), a universal large cross-modal vision-language pre-training model, has…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Min Cao , Yang Bai , Ziyin Zeng , Mang Ye , Min Zhang

Description-based person re-identification (Re-id) is an important task in video surveillance that requires discriminative cross-modal representations to distinguish different people. It is difficult to directly measure the similarity…

Computer Vision and Pattern Recognition · Computer Science 2019-06-25 Kai Niu , Yan Huang , Wanli Ouyang , Liang Wang

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 (re-id) aims to match pedestrians observed by disjoint camera views. It attracts increasing attention in computer vision due to its importance to surveillance system. To combat the major challenge of cross-view…

Computer Vision and Pattern Recognition · Computer Science 2017-09-08 Lin Wu , Yang Wang , Junbin Gao , Xue Li

Domain Generalized person Re-identification (DG Re-ID) is a challenging task, where models are trained on source domains but tested on unseen target domains. Although previous pure vision-based models have achieved significant progress, the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Jiachen Li , Xiaojin Gong , Dongping Zhang

Visual language models like Contrastive Language-Image Pretraining (CLIP) have shown impressive performance in analyzing natural images with language information. However, these models often encounter challenges when applied to specialized…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Jiaqing Zhang , Mingxiang Cao , Xue Yang , Kai Jiang , Yunsong Li

As a pioneering vision-language model, CLIP (Contrastive Language-Image Pre-training) has achieved significant success across various domains and a wide range of downstream vision-language tasks. However, the text encoders in popular CLIP…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Mothilal Asokan , Kebin Wu , Fatima Albreiki
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