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相关论文: Global Information Guided Video Anomaly Detection

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Abnormal event detection (AED) in urban surveillance videos has multiple challenges. Unlike other computer vision problems, the AED is not solely dependent on the content of frames. It also depends on the appearance of the objects and their…

计算机视觉与模式识别 · 计算机科学 2020-11-20 Ali Atghaei , Soroush Ziaeinejad , Mohammad Rahmati

Due to its relevance in intelligent transportation systems, anomaly detection in traffic videos has recently received much interest. It remains a difficult problem due to a variety of factors influencing the video quality of a real-time…

计算机视觉与模式识别 · 计算机科学 2021-04-21 Keval Doshi , Yasin Yilmaz

Despite the recent advances in video classification, progress in spatio-temporal action recognition has lagged behind. A major contributing factor has been the prohibitive cost of annotating videos frame-by-frame. In this paper, we present…

计算机视觉与模式识别 · 计算机科学 2020-07-22 Anurag Arnab , Chen Sun , Arsha Nagrani , Cordelia Schmid

Video anomaly detection is a challenging task not only because it involves solving many sub-tasks such as motion representation, object localization and action recognition, but also because it is commonly considered as an unsupervised…

计算机视觉与模式识别 · 计算机科学 2020-12-04 Yuqi Ouyang , Victor Sanchez

Weakly supervised video anomaly detection (WS-VAD) is to distinguish anomalies from normal events based on discriminative representations. Most existing works are limited in insufficient video representations. In this work, we develop a…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Jia-Chang Feng , Fa-Ting Hong , Wei-Shi Zheng

Recently, large vision and language models have shown their success when adapting them to many downstream tasks. In this paper, we present a unified framework named CLIP-ADA for Anomaly Detection by Adapting a pre-trained CLIP model. To…

计算机视觉与模式识别 · 计算机科学 2024-03-15 Yuxuan Cai , Xinwei He , Dingkang Liang , Ao Tong , Xiang Bai

Graph anomaly detection (GAD) aims to identify anomalous graphs that significantly deviate from other ones, which has raised growing attention due to the broad existence and complexity of graph-structured data in many real-world scenarios.…

机器学习 · 计算机科学 2024-02-21 Jinyu Cai , Yunhe Zhang , Zhoumin Lu , Wenzhong Guo , See-kiong Ng

Detecting anomalies in images is an important task, especially in real-time computer vision applications. In this work, we focus on computational efficiency and propose a lightweight feature extractor that processes an image in less than a…

计算机视觉与模式识别 · 计算机科学 2024-02-09 Kilian Batzner , Lars Heckler , Rebecca König

This paper focuses on the weakly-supervised audio-visual video parsing task, which aims to recognize all events belonging to each modality and localize their temporal boundaries. This task is challenging because only overall labels…

计算机视觉与模式识别 · 计算机科学 2022-08-02 Haoyue Cheng , Zhaoyang Liu , Hang Zhou , Chen Qian , Wayne Wu , Limin Wang

This paper introduces a simplified variation of the PaDiM (Pixel-Wise Anomaly Detection through Instance Modeling) method for anomaly detection in images, fitting a single multivariate Gaussian (MVG) distribution to the feature vectors…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Joao P C Bertoldo , David Arrustico

Anomaly detection through video analysis is of great importance to detect any anomalous vehicle/human behavior at a traffic intersection. While most existing works use neural networks and conventional machine learning methods based on…

Video anomaly detection under weak supervision presents significant challenges, particularly due to the lack of frame-level annotations during training. While prior research has utilized graph convolution networks and self-attention…

计算机视觉与模式识别 · 计算机科学 2024-01-24 Yujiang Pu , Xiaoyu Wu , Lulu Yang , Shengjin Wang

The interest for video anomaly detection systems has gained traction for the past few years. The current approaches use deep learning to perform anomaly detection in videos, but this approach has multiple problems. For starters, deep…

计算机视觉与模式识别 · 计算机科学 2022-06-01 Vladimir Monakhov , Vajira Thambawita , Pål Halvorsen , Michael A. Riegler

Industrial visual inspection aims at detecting surface defects in products during the manufacturing process. Although existing anomaly detection models have shown great performance on many public benchmarks, their limited adjustability and…

计算机视觉与模式识别 · 计算机科学 2023-05-16 Tongkun Liu , Bing Li , Xiao Du , Bingke Jiang , Xiao Jin , Liuyi Jin , Zhuo Zhao

Video anomaly detection is commonly used in many applications such as security surveillance and is very challenging.A majority of recent video anomaly detection approaches utilize deep reconstruction models, but their performance is often…

计算机视觉与模式识别 · 计算机科学 2021-05-28 Xuanzhao Wang , Zhengping Che , Bo Jiang , Ning Xiao , Ke Yang , Jian Tang , Jieping Ye , Jingyu Wang , Qi Qi

We present an efficient method for detecting anomalies in videos. Recent applications of convolutional neural networks have shown promises of convolutional layers for object detection and recognition, especially in images. However,…

计算机视觉与模式识别 · 计算机科学 2017-01-09 Yong Shean Chong , Yong Haur Tay

Behavioral malware detectors promise to expose previously unknown malware and are an important security primitive. However, even the best behavioral detectors suffer from high false positives and negatives. In this paper, we address the…

密码学与安全 · 计算机科学 2017-08-08 Mkhail Kazdagli , Constantine Caramanis , Sanjay Shakkottai , Mohit Tiwari

Anomaly detection on dynamic graphs refers to detecting entities whose behaviors obviously deviate from the norms observed within graphs and their temporal information. This field has drawn increasing attention due to its application in…

机器学习 · 计算机科学 2023-10-26 Shiqi Lou , Qingyue Zhang , Shujie Yang , Yuyang Tian , Zhaoxuan Tan , Minnan Luo

In recent years, many works have addressed the problem of finding never-seen-before anomalies in videos. Yet, most work has been focused on detecting anomalous frames in surveillance videos taken from security cameras. Meanwhile, the task…

计算机视觉与模式识别 · 计算机科学 2021-12-15 Laura Kart , Niv Cohen

Formulating learning systems for the detection of real-world anomalous events using only video-level labels is a challenging task mainly due to the presence of noisy labels as well as the rare occurrence of anomalous events in the training…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Muhammad Zaigham Zaheer , Arif Mahmood , Marcella Astrid , Seung-Ik Lee