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3D anomaly detection (AD) is a crucial task in computer vision, aiming to identify anomalous points or regions from point cloud data. However, existing methods may encounter challenges when handling point clouds with changes in orientation…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Hanzhe Liang , Jie Zhou , Can Gao , Bingyang Guo , Jinbao Wang , Linlin Shen

We leverage recent breakthroughs in neural density estimation to propose a new unsupervised anomaly detection technique (ANODE). By estimating the probability density of the data in a signal region and in sidebands, and interpolating the…

高能物理 - 唯象学 · 物理学 2020-05-12 Benjamin Nachman , David Shih

Image anomaly detection consists in detecting images or image portions that are visually different from the majority of the samples in a dataset. The task is of practical importance for various real-life applications like biomedical image…

计算机视觉与模式识别 · 计算机科学 2022-10-28 Axel De Nardin , Pankaj Mishra , Gian Luca Foresti , Claudio Piciarelli

Object detection, one of the three main tasks of computer vision, has been used in various applications. The main process is to use deep neural networks to extract the features of an image and then use the features to identify the class and…

计算机视觉与模式识别 · 计算机科学 2022-12-14 Wenshuo Li

It is hard to collect enough flaw images for training deep learning network in industrial production. Therefore, existing industrial anomaly detection methods prefer to use CNN-based unsupervised detection and localization network to…

计算机视觉与模式识别 · 计算机科学 2024-08-16 Jianfeng Huang , Chenyang Li , Yimin Lin , Shiguo Lian

While one-stage detectors like YOLOv8 offer fast training speed, they often under-perform on detecting small objects as a trade-off. This becomes even more critical when detecting tiny objects in aerial imagery due to low-resolution targets…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Kihyun Kim , Michalis Lazarou , Tania Stathaki

Anomaly detection is important in many real-life applications. Recently, self-supervised learning has greatly helped deep anomaly detection by recognizing several geometric transformations. However these methods lack finer features, usually…

计算机视觉与模式识别 · 计算机科学 2022-12-12 Loic Jezequel , Ngoc-Son Vu , Jean Beaudet , Aymeric Histace

To develop a machine sound monitoring system, a method for detecting anomalous sound is proposed. Exact likelihood estimation using Normalizing Flows is a promising technique for unsupervised anomaly detection, but it can fail at…

音频与语音处理 · 电气工程与系统科学 2021-03-17 Kota Dohi , Takashi Endo , Harsh Purohit , Ryo Tanabe , Yohei Kawaguchi

We apply several machine learning algorithms to the problem of anomaly detection in operational data for large-scale, high-voltage electric power grids. We observe important differences in the performance of the algorithms. Neural networks…

系统与控制 · 电气工程与系统科学 2026-02-12 Marc Gillioz , Guillaume Dubuis , Étienne Voutaz , Philippe Jacquod

With the widespread adoption of cloud services, especially the extensive deployment of plenty of Web applications, it is important and challenging to detect anomalies from the packet payload. For example, the anomalies in the packet payload…

信号处理 · 电气工程与系统科学 2021-05-20 Jiaxin Liu , Xucheng Song , Yingjie Zhou , Xi Peng , Yanru Zhang , Pei Liu , Dapeng Wu

The key to ensuring the safe obstacle avoidance function of autonomous driving systems lies in the use of extremely accurate vehicle recognition techniques. However, the variability of the actual road environment and the diverse…

计算机视觉与模式识别 · 计算机科学 2025-01-03 Haocheng Guo , Yaqiong Zhang , Lieyang Chen , Arfat Ahmad Khan

The leading workhorse of anomaly (and attack) detection in the literature has been residual-based detectors, where the residual is the discrepancy between the observed output provided by the sensors (inclusive of any tampering along the…

系统与控制 · 电气工程与系统科学 2020-04-17 Navid Hashemi , Eduardo Verdugo German , Jonatan Pena Ramirez , Justin Ruths

For a long time, object detectors have suffered from extreme imbalance between foregrounds and backgrounds. While several sampling/reweighting schemes have been explored to alleviate the imbalance, they are usually heuristic and demand…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Joya Chen , Dong Liu , Bin Luo , Xuezheng Peng , Tong Xu , Enhong Chen

The main objective of this article is to develop scalable dynamic anomaly detectors when high-fidelity simulators of power systems are at our disposal. On the one hand, mathematical models of these high-fidelity simulators are typically…

最优化与控制 · 数学 2020-10-07 Kaikai Pan , Peter Palensky , Peyman Mohajerin Esfahani

This paper presents a Bayesian algorithm for linear spectral unmixing of hyperspectral images that accounts for anomalies present in the data. The model proposed assumes that the pixel reflectances are linear mixtures of unknown endmembers,…

统计方法学 · 统计学 2015-10-06 Yoann Altmann , Steve McLaughlin , Alfred Hero

This paper presents a practical and lightweight solution for enhancing child detection in low-quality surveillance footage, a critical component in real-world missing child alert and daycare monitoring systems. Building upon the efficient…

计算机视觉与模式识别 · 计算机科学 2026-02-13 Khanh Linh Tran , Minh Nguyen Dang , Thien Nguyen Trong , Hung Nguyen Quoc , Linh Nguyen Kieu

Anomaly detection is crucial to the advanced identification of product defects such as incorrect parts, misaligned components, and damages in industrial manufacturing. Due to the rare observations and unknown types of defects, anomaly…

计算机视觉与模式识别 · 计算机科学 2024-01-11 Jeeho Hyun , Sangyun Kim , Giyoung Jeon , Seung Hwan Kim , Kyunghoon Bae , Byung Jun Kang

This paper introduces the Budding Ensemble Architecture (BEA), a novel reduced ensemble architecture for anchor-based object detection models. Object detection models are crucial in vision-based tasks, particularly in autonomous systems.…

计算机视觉与模式识别 · 计算机科学 2023-11-13 Syed Sha Qutub , Neslihan Kose , Rafael Rosales , Michael Paulitsch , Korbinian Hagn , Florian Geissler , Yang Peng , Gereon Hinz , Alois Knoll

In response to the situation that the conventional bridge crack manual detection method has a large amount of human and material resources wasted, this study is aimed to propose a light-weighted, high-precision, deep learning-based bridge…

计算机视觉与模式识别 · 计算机科学 2022-06-06 Xiao Ruiqiang

Multi-camera systems provide richer contextual information for industrial anomaly detection. However, traditional methods process each view independently, disregarding the complementary information across viewpoints. Existing multi-view…

计算机视觉与模式识别 · 计算机科学 2025-03-17 Yifan Liu , Xun Xu , Shijie Li , Jingyi Liao , Xulei Yang