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Computer vision has evolved in the last decade as a key technology for numerous applications replacing human supervision. In this paper, we present a survey on relevant visual surveillance related researches for anomaly detection in public…

计算机视觉与模式识别 · 计算机科学 2020-12-17 Santhosh Kelathodi Kumaran , Debi Prosad Dogra , Partha Pratim Roy

Automated surface inspection is an important task in many manufacturing industries and often requires machine learning driven solutions. Supervised approaches, however, can be challenging, since it is often difficult to obtain large amounts…

计算机视觉与模式识别 · 计算机科学 2018-11-19 Matthias Haselmann , Dieter P. Gruber , Paul Tabatabai

Deep approaches to anomaly detection have recently shown promising results over shallow methods on large and complex datasets. Typically anomaly detection is treated as an unsupervised learning problem. In practice however, one may…

Deep learning approaches to anomaly detection have recently improved the state of the art in detection performance on complex datasets such as large collections of images or text. These results have sparked a renewed interest in the anomaly…

Anomaly detection in videos is a significant yet challenging problem. Previous approaches based on deep neural networks employ either reconstruction-based or prediction-based approaches. Nevertheless, existing reconstruction-based methods…

计算机视觉与模式识别 · 计算机科学 2023-01-31 Yizhou Wang , Can Qin , Yue Bai , Yi Xu , Xu Ma , Yun Fu

Most models for weakly supervised video anomaly detection (WS-VAD) rely on multiple instance learning, aiming to distinguish normal and abnormal snippets without specifying the type of anomaly. However, the ambiguous nature of anomaly…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Chenchen Tao , Xiaohao Peng , Chong Wang , Jiafei Wu , Puning Zhao , Jun Wang , Jiangbo Qian

In today's world, the amount of data produced in every field has increased at an unexpected level. In the face of increasing data, the importance of data processing has increased remarkably. Our resource topic is on the processing of video…

计算机视觉与模式识别 · 计算机科学 2021-06-24 Talha Dilber , Mehmet Serdar Guzel , Erkan Bostanci

The current concept of Smart Cities influences urban planners and researchers to provide modern, secured and sustainable infrastructure and give a decent quality of life to its residents. To fulfill this need video surveillance cameras have…

计算机视觉与模式识别 · 计算机科学 2021-08-10 Devashree R. Patrikar , Mayur Rajram Parate

Video anomaly detection aims to identify abnormal events that occurred in videos. Since anomalous events are relatively rare, it is not feasible to collect a balanced dataset and train a binary classifier to solve the task. Thus, most…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Guangyu Sun , Zhang Liu , Lianggong Wen , Jing Shi , Chenliang Xu

We consider the problem of anomaly detection with a small set of partially labeled anomaly examples and a large-scale unlabeled dataset. This is a common scenario in many important applications. Existing related methods either exclusively…

机器学习 · 计算机科学 2021-06-11 Guansong Pang , Anton van den Hengel , Chunhua Shen , Longbing Cao

Machine learning-based medical anomaly detection is an important problem that has been extensively studied. Numerous approaches have been proposed across various medical application domains and we observe several similarities across these…

机器学习 · 计算机科学 2021-04-14 Tharindu Fernando , Harshala Gammulle , Simon Denman , Sridha Sridharan , Clinton Fookes

Video Anomaly Detection (VAD) automates the identification of unusual events, such as security threats in surveillance videos. In real-world applications, VAD models must effectively operate in cross-domain settings, identifying rare…

计算机视觉与模式识别 · 计算机科学 2024-08-12 Yashika Jain , Ali Dabouei , Min Xu

We consider the task of detecting anomalies for autonomous mobile robots based on vision. We categorize relevant types of visual anomalies and discuss how they can be detected by unsupervised deep learning methods. We propose a novel…

计算机视觉与模式识别 · 计算机科学 2022-09-23 Dario Mantegazza , Alessandro Giusti , Luca M. Gambardella , Andrea Rizzoli , Jérôme Guzzi

Weakly supervised video anomaly detection aims to identify abnormal events in videos using only video-level labels. Recently, two-stage self-training methods have achieved significant improvements by self-generating pseudo labels and…

计算机视觉与模式识别 · 计算机科学 2022-12-09 Chen Zhang , Guorong Li , Yuankai Qi , Shuhui Wang , Laiyun Qing , Qingming Huang , Ming-Hsuan Yang

Anomaly detection in videos is a challenging task as anomalies in different videos are of different kinds. Therefore, a promising way to approach video anomaly detection is by learning the non-anomalous nature of the video at hand. To this…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Gargi V. Pillai , Ashish Verma , Debashis Sen

It's no secret that video has become the primary way we share information online. That's why there's been a surge in demand for algorithms that can analyze and understand video content. It's a trend going to continue as video continues to…

计算机视觉与模式识别 · 计算机科学 2025-02-12 Amir Hosein Fadaei , Mohammad-Reza A. Dehaqani

Video action detection requires dense spatio-temporal annotations, which are both challenging and expensive to obtain. However, real-world videos often vary in difficulty and may not require the same level of annotation. This paper analyzes…

计算机视觉与模式识别 · 计算机科学 2025-08-20 Aayush Rana , Akash Kumar , Vibhav Vineet , Yogesh S Rawat

Video anomaly detection (VAD) has been paid increasing attention due to its potential applications, its current dominant tasks focus on online detecting anomalies% at the frame level, which can be roughly interpreted as the binary or…

计算机视觉与模式识别 · 计算机科学 2024-02-29 Peng Wu , Jing Liu , Xiangteng He , Yuxin Peng , Peng Wang , Yanning Zhang

We present a meta-learning framework for weakly supervised anomaly detection in videos, where the detector learns to adapt to unseen types of abnormal activities effectively when only video-level annotations of binary labels are available.…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Jaeyoo Park , Junha Kim , Bohyung Han

This paper aims to address the unsupervised video anomaly detection (VAD) problem, which involves classifying each frame in a video as normal or abnormal, without any access to labels. To accomplish this, the proposed method employs…

计算机视觉与模式识别 · 计算机科学 2023-07-20 Anil Osman Tur , Nicola Dall'Asen , Cigdem Beyan , Elisa Ricci