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Protecting sensitive information against data exploiting attacks is an emerging research area in data mining. Over the past, several different methods have been introduced to protect individual privacy from such attacks while maximizing…

Cryptography and Security · Computer Science 2021-07-29 Hung Nguyen , Di Zhuang , Pei-Yuan Wu , Morris Chang

The task of graph-level anomaly detection (GLAD) is to identify anomalous graphs that deviate significantly from the majority of graphs in a dataset. While deep GLAD methods have shown promising performance, their black-box nature limits…

Machine Learning · Computer Science 2026-02-12 Qiuran Zhao , Kai Ming Ting , Xinpeng Li

This paper addresses video anomaly detection problem for videosurveillance. Due to the inherent rarity and heterogeneity of abnormal events, the problem is viewed as a normality modeling strategy, in which our model learns object-centric…

Computer Vision and Pattern Recognition · Computer Science 2023-05-22 Khalil Bergaoui , Yassine Naji , Aleksandr Setkov , Angélique Loesch , Michèle Gouiffès , Romaric Audigier

Towards open-ended Video Anomaly Detection (VAD), existing methods often exhibit biased detection when faced with challenging or unseen events and lack interpretability. To address these drawbacks, we propose Holmes-VAD, a novel framework…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Huaxin Zhang , Xiaohao Xu , Xiang Wang , Jialong Zuo , Chuchu Han , Xiaonan Huang , Changxin Gao , Yuehuan Wang , Nong Sang

Weakly supervised video anomaly detection aims to detect anomalies and identify abnormal categories with only video-level labels. We propose CPL-VAD, a dual-branch framework with cross pseudo labeling. The binary anomaly detection branch…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Dayeon Lee , Donghyeong Kim , Chaewon Park , Sungmin Woo , Sangyoun Lee

Video Anomaly Detection (VAD) aims to localize abnormal events on the timeline of long-range surveillance videos. Anomaly-scoring-based methods have been prevailing for years but suffer from the high complexity of thresholding and low…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 Hui Lv , Qianru Sun

Reliable and accurate 3D object detection is a necessity for safe autonomous driving. Although LiDAR sensors can provide accurate 3D point cloud estimates of the environment, they are also prohibitively expensive for many settings.…

Computer Vision and Pattern Recognition · Computer Science 2020-05-15 Rui Qian , Divyansh Garg , Yan Wang , Yurong You , Serge Belongie , Bharath Hariharan , Mark Campbell , Kilian Q. Weinberger , Wei-Lun Chao

Explainable video anomaly detection (VAD) is crucial for safety-critical applications, yet even with recent progress, much of the research still lacks spatial grounding, making the explanations unverifiable. This limitation is especially…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Inpyo Song , Minjun Joo , Joonhyung Kwon , Eunji Jeon , Jangwon Lee

The popularity of various social platforms has prompted more people to share their routine photos online. However, undesirable privacy leakages occur due to such online photo sharing behaviors. Advanced deep neural network (DNN) based…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Mingfu Xue , Shichang Sun , Zhiyu Wu , Can He , Jian Wang , Weiqiang Liu

Video anomaly detection (VAD) aims to identify abnormal events in videos. Traditional VAD methods generally suffer from the high costs of labeled data and full training, thus some recent works have explored leveraging frozen multi-modal…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Zhaolin Cai , Fan Li , Huiyu Duan , Lijun He , Guangtao Zhai

Weakly-supervised video anomaly detection (WS-VAD) using Multiple Instance Learning (MIL) suffers from label ambiguity, hindering discriminative feature learning. We propose ProDisc-VAD, an efficient framework tackling this via two…

Computer Vision and Pattern Recognition · Computer Science 2025-07-18 Tao Zhu , Qi Yu , Xinru Dong , Shiyu Li , Yue Liu , Jinlong Jiang , Lei Shu

Weakly-supervised methods for video anomaly detection (VAD) are conventionally based merely on RGB spatio-temporal features, which continues to limit their reliability in real-world scenarios. This is due to the fact that RGB-features are…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Snehashis Majhi , Giacomo D'Amicantonio , Antitza Dantcheva , Quan Kong , Lorenzo Garattoni , Gianpiero Francesca , Egor Bondarev , Francois Bremond

With the rise of social platforms, protecting privacy has become an important issue. Privacy object detection aims to accurately locate private objects in images. It is the foundation of safeguarding individuals' privacy rights and ensuring…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Zhuohang Jiang , Bingkui Tong , Xia Du , Ahmed Alhammadi , Jizhe Zhou

Extreme amodal detection is the task of inferring the 2D location of objects that are not fully visible in the input image but are visible within an expanded field-of-view. This differs from amodal detection, where the object is partially…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Changlin Song , Yunzhong Hou , Michael Randall Barnes , Rahul Shome , Dylan Campbell

The widespread deployment of high-resolution visual sensing systems, coupled with the rise of foundation models, has amplified privacy risks in video-based applications. Differentially private pixelization offers mathematically guaranteed…

Cryptography and Security · Computer Science 2025-11-07 Ming Liu

3D object detection plays a crucial role in autonomous systems, yet existing methods are limited by closed-set assumptions and struggle to recognize novel objects and their attributes in real-world scenarios. We propose OVODA, a novel…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Xinhao Xiang , Kuan-Chuan Peng , Suhas Lohit , Michael J. Jones , Jiawei Zhang

Large Vision-Language Models (LVLMs) have advanced multimodal understanding, yet their reliability is limited by hallucination, where generated content conflicts with visual facts. Existing mitigation methods either rely on costly external…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Ruoxi Cheng , Haoxuan Ma , Zhengfei Hai , Yiyan Huang , Ranjie Duan , Tianle Zhang , Xu Yang , Ziyi Ye , Xingjun Ma

LiDAR has become one of the primary 3D object detection sensors in autonomous driving. However, LiDAR's diverging point pattern with increasing distance results in a non-uniform sampled point cloud ill-suited to discretized volumetric…

Computer Vision and Pattern Recognition · Computer Science 2022-03-23 Jordan S. K. Hu , Tianshu Kuai , Steven L. Waslander

Due to the pervasiveness of image capturing devices in every-day life, images of individuals are routinely captured. Although this has enabled many benefits, it also infringes on personal privacy. A promising direction in research on…

Cryptography and Security · Computer Science 2021-02-23 William Croft , Jörg-Rüdiger Sack , Wei Shi

The fidelity of Generative Adversarial Networks (GAN) inversion is impeded by Out-Of-Domain (OOD) areas (e.g., background, accessories) in the image. Detecting the OOD areas beyond the generation ability of the pre-trained model and…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Xin Yang , Xiaogang Xu , Yingcong Chen
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