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Due to some complex factors (e.g., occlusion, pose variation and diverse camera perspectives), extracting stronger feature representation in person re-identification remains a challenging task. In this paper, we proposed a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-10-24 Zhangjian Ji , Donglin Cheng , Kai Feng

With the development of deep learning technologies, attribute recognition and person re-identification (re-ID) have attracted extensive attention and achieved continuous improvement via executing computing-intensive deep neural networks in…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 Zichuan Xu , Jiangkai Wu , Qiufen Xia , Pan Zhou , Jiankang Ren , Huizhi Liang

Low-count positron emission tomography (LCPET) imaging can reduce patients' exposure to radiation but often suffers from increased image noise and reduced lesion detectability, necessitating effective denoising techniques. Diffusion models…

Image and Video Processing · Electrical Eng. & Systems 2025-03-24 Yinchi Zhou , Huidong Xie , Menghua Xia , Qiong Liu , Bo Zhou , Tianqi Chen , Jun Hou , Liang Guo , Xinyuan Zheng , Hanzhong Wang , Biao Li , Axel Rominger , Kuangyu Shi , Nicha C. Dvorneka , Chi Liu

Occlusion between different objects is a typical challenge in Multi-Object Tracking (MOT), which often leads to inferior tracking results due to the missing detected objects. The common practice in multi-object tracking is re-identifying…

Computer Vision and Pattern Recognition · Computer Science 2022-01-05 Qiankun Liu , Dongdong Chen , Qi Chu , Lu Yuan , Bin Liu , Lei Zhang , Nenghai Yu

Most deep-learning-based image classification methods assume that all samples are generated under an independent and identically distributed (IID) setting. However, out-of-distribution (OOD) generalization is more common in practice, which…

Machine Learning · Computer Science 2022-02-24 Xin Guo , Zhengxu Yu , Chao Xiang , Zhongming Jin , Jianqiang Huang , Deng Cai , Xiaofei He , Xian-Sheng Hua

Existing unlearning algorithms in text-to-image generative models often fail to preserve the knowledge of semantically related concepts when removing specific target concepts: a challenge known as adjacency. To address this, we propose FADE…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Kartik Thakral , Tamar Glaser , Tal Hassner , Mayank Vatsa , Richa Singh

Out-of-distribution (OOD) detection is crucial for deploying robust machine learning models, especially in areas where security is critical. However, traditional OOD detection methods often fail to capture complex data distributions from…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Armando Zhu , Jiabei Liu , Keqin Li , Shuying Dai , Bo Hong , Peng Zhao , Changsong Wei

The video-based person re-identification is to recognize a person under different cameras, which is a crucial task applied in visual surveillance system. Most previous methods mainly focused on the feature of full body in the frame. In this…

Computer Vision and Pattern Recognition · Computer Science 2018-07-04 Jie Liu , Cheng Sun , Xiang Xu , Baomin Xu , Shuangyuan Yu

Personalized retrieval and segmentation aim to locate specific instances within a dataset based on an input image and a short description of the reference instance. While supervised methods are effective, they require extensive labeled data…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Dvir Samuel , Rami Ben-Ari , Matan Levy , Nir Darshan , Gal Chechik

Prior research on out-of-distribution detection (OoDD) has primarily focused on single-modality models. Recently, with the advent of large-scale pretrained vision-language models such as CLIP, OoDD methods utilizing such multi-modal…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Jeonghyeon Kim , Sangheum Hwang

Robust detection of vulnerable road users is a safety critical requirement for the deployment of autonomous vehicles in heterogeneous traffic. One of the most complex outstanding challenges is that of partial occlusion where a target object…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Shane Gilroy , Darragh Mullins , Edward Jones , Ashkan Parsi , Martin Glavin

Pose estimation in the wild is a challenging problem, particularly in situations of (i) occlusions of varying degrees and (ii) crowded outdoor scenes. Most of the existing studies of pose estimation did not report the performance in similar…

Computer Vision and Pattern Recognition · Computer Science 2020-02-18 Sudip Das , Perla Sai Raj Kishore , Ujjwal Bhattacharya

Pedestrian detection plays a critical role in autonomous driving (AD), where ensuring safety and reliability is important. While many detection models aim to reduce miss-rates and handle challenges such as occlusion and long-range…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Mohammad Khoshkdahan , Arman Akbari , Arash Akbari , Xuan Zhang

Out-of-Distribution (OoD) detection aims to justify whether a given sample is from the training distribution of the classifier-under-protection, i.e., In-Distribution (InD), or from OoD. Diffusion Models (DMs) are recently utilized in OoD…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Kun Fang , Qinghua Tao , Zuopeng Yang , Xiaolin Huang , Jie Yang

Multimodal fusion, leveraging data like vision and language, is rapidly gaining traction. This enriched data representation improves performance across various tasks. Existing methods for out-of-distribution (OOD) detection, a critical area…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Jinglun Li , Xinyu Zhou , Kaixun Jiang , Lingyi Hong , Pinxue Guo , Zhaoyu Chen , Weifeng Ge , Wenqiang Zhang

The pose-guided person image generation task requires synthesizing photorealistic images of humans in arbitrary poses. The existing approaches use generative adversarial networks that do not necessarily maintain realistic textures or need…

Computer Vision and Pattern Recognition · Computer Science 2023-03-02 Ankan Kumar Bhunia , Salman Khan , Hisham Cholakkal , Rao Muhammad Anwer , Jorma Laaksonen , Mubarak Shah , Fahad Shahbaz Khan

Federated Domain Generalization for Person Re-Identification (FedDG-ReID) learns domain-invariant representations from decentralized data. While Vision Transformer (ViT) is widely adopted, its global attention often fails to distinguish…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Xin Xu , Weilong Li , Wei Liu , Wenke Huang , Zhixi Yu , Bin Yang , Xiaoying Liao , Kui Jiang

Out-of-distribution (OOD) detection is crucial for building reliable machine learning models. Although negative prompt tuning has enhanced the OOD detection capabilities of vision-language models, these tuned models often suffer from…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Wenjie Zhu , Yabin Zhang , Xin Jin , Wenjun Zeng , Lei Zhang

Due to the diversity of attack materials, fingerprint recognition systems (AFRSs) are vulnerable to malicious attacks. It is thus important to propose effective fingerprint presentation attack detection (PAD) methods for the safety and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Feng Liu , Zhe Kong , Haozhe Liu , Wentian Zhang , Linlin Shen

Person re-identification (ReID) plays a critical role in applications such as security surveillance and criminal investigations. Most traditional image-based ReID methods face challenges including occlusions and lighting changes, while text…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Jincheng Yan , Yun Wang , Xiaoyan Luo , Yu-Wing Tai