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RGB-Infrared (IR) person re-identification aims to retrieve person-of-interest from heterogeneous cameras, easily suffering from large image modality discrepancy caused by different sensing wavelength ranges. Existing work usually minimizes…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Lin Wan , Zongyuan Sun , Qianyan Jing , Yehansen Chen , Lijing Lu , Zhihang Li

Most existing methods for text-based person retrieval focus on text-to-image person retrieval. Nevertheless, due to the lack of dynamic information provided by isolated frames, the performance is hampered when the person is obscured or…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Xu Zhang , Fan Ni , Guan-Nan Dong , Aichun Zhu , Jianhui Wu , Mingcheng Ni , Hui Liu

Human pose estimation has been widely studied with much focus on supervised learning requiring sufficient annotations. However, in real applications, a pretrained pose estimation model usually need be adapted to a novel domain with no…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Xixia Xu , Qi Zou , Xue Lin

Aerial-Ground Person Re-Identification (AGPReID) remains highly challenging due to drastic viewpoint variations between drones and fixed cameras. Existing methods typically follow a view-invariant paradigm, aligning shared features across…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Quan Zhang , Zeqiang Cai , Peiming Zhao , Jingze Wu , Cailun Wu , Hongbo Chen , Jianhuang Lai

Image-text matching plays a critical role in bridging the vision and language, and great progress has been made by exploiting the global alignment between image and sentence, or local alignments between regions and words. However, how to…

Computer Vision and Pattern Recognition · Computer Science 2021-01-06 Haiwen Diao , Ying Zhang , Lin Ma , Huchuan Lu

CLIP has shown impressive results in aligning images and texts at scale. However, its ability to capture detailed visual features remains limited because CLIP matches images and texts at a global level. To address this issue, we propose…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Rui Xiao , Sanghwan Kim , Mariana-Iuliana Georgescu , Zeynep Akata , Stephan Alaniz

Visible-infrared person re-identification (VI-ReID) is a challenging and essential task, which aims to retrieve a set of person images over visible and infrared camera views. In order to mitigate the impact of large modality discrepancy…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Haojie Liu , Daoxun Xia , Wei Jiang , Chao Xu

For person re-identification, existing deep networks often focus on representation learning. However, without transfer learning, the learned model is fixed as is, which is not adaptable for handling various unseen scenarios. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Shengcai Liao , Ling Shao

Alignment with human preference is a desired property of large language models (LLMs). Currently, the main alignment approach is based on reinforcement learning from human feedback (RLHF). Despite the effectiveness of RLHF, it is intricate…

Computation and Language · Computer Science 2024-04-16 Geyang Guo , Ranchi Zhao , Tianyi Tang , Wayne Xin Zhao , Ji-Rong Wen

Despite remarkable advancements in text-to-image person re-identification (TIReID) facilitated by the breakthrough of cross-modal embedding models, existing methods often struggle to distinguish challenging candidate images due to intrinsic…

Machine Learning · Computer Science 2025-06-16 Yang Qin , Chao Chen , Zhihang Fu , Dezhong Peng , Xi Peng , Peng Hu

Image-text matching aims to find matched cross-modal pairs accurately. While current methods often rely on projecting cross-modal features into a common embedding space, they frequently suffer from imbalanced feature representations across…

Information Retrieval · Computer Science 2024-01-19 Zuhui Wang , Yunting Yin , I. V. Ramakrishnan

Face recognition in unconstrained environments such as surveillance, video, and web imagery must contend with extreme variation in pose, blur, illumination, and occlusion, where conventional visual quality metrics fail to predict whether…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Allen Tu , Kartik Narayan , Joshua Gleason , Jennifer Xu , Matthew Meyn , Tom Goldstein , Vishal M. Patel

State-of-the-art face recognition (FR) models often experience a significant performance drop when dealing with facial images in surveillance scenarios where images are in low quality and often corrupted with noise. Leveraging facial…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Md Mahedi Hasan , Shoaib Meraj Sami , Nasser Nasrabadi

Remote Sensing Image-Text Retrieval (RSITR) plays a critical role in geographic information interpretation, disaster monitoring, and urban planning by establishing semantic associations between image and textual descriptions. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Hailong Ning , Siying Wang , Tao Lei , Xiaopeng Cao , Huanmin Dou , Bin Zhao , Asoke K. Nandi , Petia Radeva

Cross-modal alignment is crucial for multimodal representation fusion due to the inherent heterogeneity between modalities. While Transformer-based methods have shown promising results in modeling inter-modal relationships, their quadratic…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Yan Li , Yifei Xing , Xiangyuan Lan , Xin Li , Haifeng Chen , Dongmei Jiang

Vision-language models (VLMs) like CLIP excel in zero-shot learning by aligning image and text representations through contrastive pretraining. Existing approaches to unsupervised adaptation (UA) for fine-grained classification with VLMs…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Eman Ali , Sathira Silva , Chetan Arora , Muhammad Haris Khan

Fine-grained medical image classification is challenged by subtle inter-class variations and visually ambiguous cases, where confidence estimates often exhibit uncertainty rather than being overconfident. In such scenarios, purely…

Artificial Intelligence · Computer Science 2026-04-21 Zixuan Tang , Shen Zhao

Vision Language Models (VLMs) have rapidly advanced and show strong promise for text-based person search (TBPS), a task that requires capturing fine-grained relationships between images and text to distinguish individuals. Previous methods…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Tien-Huy Nguyen , Huu-Loc Tran , Thanh Duc Ngo

Referring image segmentation aims at segmenting the foreground masks of the entities that can well match the description given in the natural language expression. Previous approaches tackle this problem using implicit feature interaction…

Computer Vision and Pattern Recognition · Computer Science 2020-10-02 Shaofei Huang , Tianrui Hui , Si Liu , Guanbin Li , Yunchao Wei , Jizhong Han , Luoqi Liu , Bo Li

Recent advances in multimodal large language models (MLLMs) have substantially expanded the capabilities of multimodal retrieval, enabling systems to align and retrieve information across visual and textual modalities. Yet, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Xuan Lu , Kangle Li , Haohang Huang , Rui Meng , Wenjun Zeng , Xiaoyu Shen