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Visible-infrared person re-identification (VI-ReID) is a challenging task that aims to match pedestrian images captured under varying lighting conditions, which has drawn intensive research attention and achieved promising results. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Yan Jiang , Hao Yu , Mengting Wei , Zhaodong Sun , Haoyu Chen , Xu Cheng , Guoying Zhao

Video Anomaly Detection (VAD), aiming to identify abnormalities within a specific context and timeframe, is crucial for intelligent Video Surveillance Systems. While recent deep learning-based VAD models have shown promising results by…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Hao Shen , Lu Shi , Wanru Xu , Yigang Cen , Linna Zhang , Gaoyun An

3D video avatars can empower virtual communications by providing compression, privacy, entertainment, and a sense of presence in AR/VR. Best 3D photo-realistic AR/VR avatars driven by video, that can minimize uncanny effects, rely on…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Lele Chen , Chen Cao , Fernando De la Torre , Jason Saragih , Chenliang Xu , Yaser Sheikh

Open Set Video Anomaly Detection (OpenVAD) aims to identify abnormal events from video data where both known anomalies and novel ones exist in testing. Unsupervised models learned solely from normal videos are applicable to any testing…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Yuansheng Zhu , Wentao Bao , Qi Yu

Privacy-preserving network anomaly detection has become an essential area of research due to growing concerns over the protection of sensitive data. Traditional anomaly detection models often prioritize accuracy while neglecting the…

Machine Learning · Computer Science 2025-02-19 Shaobo Liu , Zihao Zhao , Weijie He , Jiren Wang , Jing Peng , Haoyuan Ma

With the advent of the era of big data, deep learning has become a prevalent building block in a variety of machine learning or data mining tasks, such as signal processing, network modeling and traffic analysis, to name a few. The massive…

Cryptography and Security · Computer Science 2019-12-20 Zhiying Xu , Shuyu Shi , Alex X. Liu , Jun Zhao , Lin Chen

We investigate privacy-preserving, video-based action recognition in deep learning, a problem with growing importance in smart camera applications. A novel adversarial training framework is formulated to learn an anonymization transform for…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Zhenyu Wu , Haotao Wang , Zhaowen Wang , Hailin Jin , Zhangyang Wang

Video anomaly detection (VAD) with weak supervision has achieved remarkable performance in utilizing video-level labels to discriminate whether a video frame is normal or abnormal. However, current approaches are inherently limited to a…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Peng Wu , Xuerong Zhou , Guansong Pang , Yujia Sun , Jing Liu , Peng Wang , Yanning Zhang

Video Anomaly Detection (VAD) aims to locate events that deviate from normal patterns in videos. Traditional approaches often rely on extensive labeled data and incur high computational costs. Recent tuning-free methods based on Multimodal…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Zhaolin Cai , Fan Li , Ziwei Zheng , Haixia Bi , Lijun He

Video anomaly detection (VAD) is an important but challenging task in computer vision. The main challenge rises due to the rarity of training samples to model all anomaly cases. Hence, semi-supervised anomaly detection methods have gotten…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Mohammad Baradaran , Robert Bergevin

Fall detection is a critical task in healthcare, particularly for elderly people. Timely fall detection and treatment can prevent severe injuries. Sensor-based activity data can be used to detect fall. However, this data are highly…

Cryptography and Security · Computer Science 2026-05-05 Joydeb Kumar Sana

Latent Dirichlet Allocation (LDA) is a popular topic modeling technique for discovery of hidden semantic architecture of text datasets, and plays a fundamental role in many machine learning applications. However, like many other machine…

Machine Learning · Computer Science 2019-07-02 Fangyuan Zhao , Xuebin Ren , Shusen Yang , Xinyu Yang

This work addresses the problem of anonymizing the identity of faces in a dataset of images, such that the privacy of those depicted is not violated, while at the same time the dataset is useful for downstream task such as for training…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Simone Barattin , Christos Tzelepis , Ioannis Patras , Nicu Sebe

The modern surge in camera usage alongside widespread computer vision technology applications poses significant privacy and security concerns. Current artificial intelligence (AI) technologies aid in recognizing relevant events and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Jhon Lopez , Carlos Hinojosa , Henry Arguello , Bernard Ghanem

Skeleton-based action recognition attracts practitioners and researchers due to the lightweight, compact nature of datasets. Compared with RGB-video-based action recognition, skeleton-based action recognition is a safer way to protect the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-15 Saemi Moon , Myeonghyeon Kim , Zhenyue Qin , Yang Liu , Dongwoo Kim

We consider the problem of client-server localization, where edge device users communicate visual data with the service provider for locating oneself against a pre-built 3D map. This localization paradigm is a crucial component for…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Junho Kim , Young Min Kim , Ramzi Zahreddine , Weston A. Welge , Gurunandan Krishnan , Sizhuo Ma , Jian Wang

Video anomaly detection (VAD) has been intensively studied for years because of its potential applications in intelligent video systems. Existing unsupervised VAD methods tend to learn normality from training sets consisting of only normal…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Mengyang Zhao , Xinhua Zeng , Yang Liu , Jing Liu , Di Li , Xing Hu , Chengxin Pang

In this paper, we propose a privacy-enhancing technique leveraging an inherent property of automatic pedestrian detection algorithms, namely, that the training of deep neural network (DNN) based methods is generally performed using curated…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Jacob Shams , Ben Nassi , Satoru Koda , Asaf Shabtai , Yuval Elovici

The unprecedented increase in the usage of computer vision technology in society goes hand in hand with an increased concern in data privacy. In many real-world scenarios like people tracking or action recognition, it is important to be…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Maxim Maximov , Ismail Elezi , Laura Leal-Taixé

Anomaly detection (AD) aims to identify defective images and localize their defects (if any). Ideally, AD models should be able to detect defects over many image classes; without relying on hard-coded class names that can be uninformative…

Computer Vision and Pattern Recognition · Computer Science 2024-04-01 Chih-Hui Ho , Kuan-Chuan Peng , Nuno Vasconcelos
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