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Ensuring the safe and reliable operation of robotic systems is paramount to prevent potential disasters and safeguard human well-being. Despite rigorous design and engineering practices, these systems can still experience malfunctions,…

Robotics · Computer Science 2025-09-15 Mahfuzul I. Nissan , Sharmin Aktar

Abnormal event detection in video is a complex computer vision problem that has attracted significant attention in recent years. The complexity of the task arises from the commonly-adopted definition of an abnormal event, that is, a rarely…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Mariana-Iuliana Georgescu , Radu Tudor Ionescu , Fahad Shahbaz Khan , Marius Popescu , Mubarak Shah

We focus on a specific use case in anomaly detection where the distribution of normal samples is supported by a lower-dimensional manifold. Here, regularized autoencoders provide a popular approach by learning the identity mapping on the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Alexander Bauer , Shinichi Nakajima , Klaus-Robert Müller

This paper introduces an unsupervised framework to extract semantically rich features for video representation. Inspired by how the human visual system groups objects based on motion cues, we propose a deep convolutional neural network that…

Computer Vision and Pattern Recognition · Computer Science 2017-07-18 Xunyu Lin , Victor Campos , Xavier Giro-i-Nieto , Jordi Torres , Cristian Canton Ferrer

Multi-task learning based video anomaly detection methods combine multiple proxy tasks in different branches to detect video anomalies in different situations. Most existing methods either do not combine complementary tasks to effectively…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Mohammad Baradaran , Robert Bergevin

Anomaly detection algorithms are often thought to be limited because they don't facilitate the process of validating results performed by domain experts. In Contrast, deep learning algorithms for anomaly detection, such as autoencoders,…

Machine Learning · Computer Science 2020-07-02 Liat Antwarg , Ronnie Mindlin Miller , Bracha Shapira , Lior Rokach

The goal of weakly supervised video anomaly detection is to learn a detection model using only video-level labeled data. However, prior studies typically divide videos into fixed-length segments without considering the complexity or…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Chen Zhang , Guorong Li , Yuankai Qi , Hanhua Ye , Laiyun Qing , Ming-Hsuan Yang , Qingming Huang

Video Anomaly Detection (VAD) identifies unusual activities in video streams, a key technology with broad applications ranging from surveillance to healthcare. Tackling VAD in real-life settings poses significant challenges due to the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Shanle Yao , Ghazal Alinezhad Noghre , Armin Danesh Pazho , Hamed Tabkhi

In the realm of machine learning, the study of anomaly detection and localization within image data has gained substantial traction, particularly for practical applications such as industrial defect detection. While the majority of existing…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Wenping Jin , Fei Guo , Li Zhu

Daily operation of a large-scale experiment is a resource consuming task, particularly from perspectives of routine data quality monitoring. Typically, data comes from different sub-detectors and the global quality of data depends on the…

Data Analysis, Statistics and Probability · Physics 2017-11-21 V. Azzolini , M. Borisyak , G. Cerminara , D. Derkach , G. Franzoni , F. De Guio , O. Koval , M. Pierini , A. Pol , F. Ratnikov , F. Siroky , A. Ustyuzhanin , J-R. Vlimant

Wildfires pose a significantly increasing hazard to global ecosystems due to the climate crisis. Due to its complex nature, there is an urgent need for innovative approaches to wildfire prediction, such as machine learning. This research…

Machine Learning · Computer Science 2024-11-18 İrem Üstek , Miguel Arana-Catania , Alexander Farr , Ivan Petrunin

Individuals with Autism Spectrum Disorder (ASD) often experience challenges in health, communication, and sensory processing; therefore, early diagnosis is necessary for proper treatment and care. In this work, we consider the problem of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 M. Serna-Aguilera , X. B. Nguyen , A. Singh , L. Rockers , S. Park , L. Neely , H. Seo , K. Luu

Abnormal activity detection is one of the most challenging tasks in the field of computer vision. This study is motivated by the recent state-of-art work of abnormal activity detection, which utilizes both abnormal and normal videos in…

Computer Vision and Pattern Recognition · Computer Science 2020-02-05 Shikha Dubey , Abhijeet Boragule , Moongu Jeon

Previous approaches to detecting human anomalies in videos have typically relied on implicit modeling by directly applying the model to video or skeleton data, potentially resulting in inaccurate modeling of motion information. In this…

Computer Vision and Pattern Recognition · Computer Science 2023-09-28 Jian Xiao , Tianyuan Liu , Genlin Ji

Semi-supervised anomaly detection aims to detect anomalies from normal samples using a model that is trained on normal data. With recent advancements in deep learning, researchers have designed efficient deep anomaly detection methods.…

Machine Learning · Computer Science 2024-01-23 Hadi Hojjati , Narges Armanfard

Deep learning has been demonstrated to achieve excellent results for image classification and object detection. However, the impact of deep learning on video analysis (e.g. action detection and recognition) has been limited due to…

Computer Vision and Pattern Recognition · Computer Science 2017-08-03 Rui Hou , Chen Chen , Mubarak Shah

This study presents an innovative approach utilising Autoencoder Convolutional Neural Networks (AECNNs) for pneumonia detection in paediatric chest x-rays. The research addresses the complexity of pneumonia, considering diverse causative…

Image and Video Processing · Electrical Eng. & Systems 2024-09-05 Michael Nosa-Omoruyi , Linda U. Oghenekaro

The problem of determining whether an object is in motion, irrespective of camera motion, is far from being solved. We address this challenging task by learning motion patterns in videos. The core of our approach is a fully convolutional…

Computer Vision and Pattern Recognition · Computer Science 2017-04-11 Pavel Tokmakov , Karteek Alahari , Cordelia Schmid

In this paper, we address the problem of unsupervised video anomaly detection (UVAD). The task aims to detect abnormal events in test video using unlabeled videos as training data. The presence of anomalies in the training data poses a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Jihun Yi , Sungroh Yoon

Recent advancements in weakly-supervised video anomaly detection have achieved remarkable performance by applying the multiple instance learning paradigm based on multimodal foundation models such as CLIP to highlight anomalous instances…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Wenti Yin , Huaxin Zhang , Xiang Wang , Yuqing Lu , Yicheng Zhang , Bingquan Gong , Jialong Zuo , Li Yu , Changxin Gao , Nong Sang
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