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Change detection in remote sensing imagery is essential for a variety of applications such as urban planning, disaster management, and climate research. However, existing methods for identifying semantically changed areas overlook the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Maximilian Bernhard , Niklas Strauß , Matthias Schubert

Anomaly segmentation is an essential capability for safety-critical robotics applications that must be aware of unexpected events. Normalizing flows (NFs), a class of generative models, are a promising approach for this task due to their…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Chang Won Lee , Selina Leveugle , Svetlana Stolpner , Chris Langley , Paul Grouchy , Jonathan Kelly , Steven L. Waslander

Recent advances in AI-driven image generation have introduced new challenges for verifying the authenticity of digital evidence in forensic investigations. Modern generative models can produce visually consistent forgeries that evade…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Opeyemi Bamigbade , Mark Scanlon , John Sheppard

Reconstruction networks are prevalently used in unsupervised anomaly and Out-of-Distribution (OOD) detection due to their independence from labeled anomaly data. However, in multi-class datasets, the effectiveness of anomaly detection is…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Jerry Chun-Wei Lin , Pi-Wei Chen , Chao-Chun Chen

Unsupervised anomaly detection of multivariate time series is a challenging task, given the requirements of deriving a compact detection criterion without accessing the anomaly points. The existing methods are mainly based on reconstruction…

Machine Learning · Computer Science 2026-05-26 Qingxiang Liu , Xiaoliang Luo , Chenghao Liu , Sheng Sun , Di Yao , Lvchun Wang , Wei Yu , Yuxuan Liang

Audio-visual deepfake detection scrutinizes manipulations in public video using complementary multimodal cues. Current methods, which train on fused multimodal data for multimodal targets face challenges due to uncertainties and…

Multimedia · Computer Science 2024-01-12 Heqing Zou , Meng Shen , Yuchen Hu , Chen Chen , Eng Siong Chng , Deepu Rajan

Video Anomaly Detection (VAD) plays a crucial role in modern surveillance systems, aiming to identify various anomalies in real-world situations. However, current benchmark datasets predominantly emphasize simple, single-frame anomalies…

Computer Vision and Pattern Recognition · Computer Science 2023-10-04 Yoav Arad , Michael Werman

In the area of fewshot anomaly detection (FSAD), efficient visual feature plays an essential role in memory bank M-based methods. However, these methods do not account for the relationship between the visual feature and its rotated visual…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Guoyang Xie , Jinbao Wang , Jiaqi Liu , Feng Zheng , Yaochu Jin

Anomaly detection aims to identify observations that deviate from the typical pattern of data. Anomalous observations may correspond to financial fraud, health risks, or incorrectly measured data in practice. We show detecting anomalies in…

Machine Learning · Statistics 2020-05-26 Matthew Davidow , David S. Matteson

In many cyber-physical systems, imaging can be an important but expensive or 'difficult to deploy' sensing modality. One such example is detecting combustion instability using flame images, where deep learning frameworks have demonstrated…

Machine Learning · Computer Science 2021-10-07 Tryambak Gangopadhyay , Vikram Ramanan , Satyanarayanan R Chakravarthy , Soumik Sarkar

Semi-supervised video anomaly detection (VAD) methods formulate the task of anomaly detection as detection of deviations from the learned normal patterns. Previous works in the field (reconstruction or prediction-based methods) suffer from…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Mohammad Baradaran , Robert Bergevin

The success of speech-image retrieval relies on establishing an effective alignment between speech and image. Existing methods often model cross-modal interaction through simple cosine similarity of the global feature of each modality,…

Computation and Language · Computer Science 2024-09-12 Lifeng Zhou , Yuke Li , Rui Deng , Yuting Yang , Haoqi Zhu

In recent years, the advancement of AI technologies has accelerated the development of smart factories. In particular, the automatic monitoring of product assembly progress is crucial for improving operational efficiency, minimizing the…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Kazuma Miura , Sarthak Pathak , Kazunori Umeda

As modern software systems continue to grow in terms of complexity and volume, anomaly detection on multivariate monitoring metrics, which profile systems' health status, becomes more and more critical and challenging. In particular, the…

Software Engineering · Computer Science 2023-08-22 Jinyang Liu , Tianyi Yang , Zhuangbin Chen , Yuxin Su , Cong Feng , Zengyin Yang , Michael R. Lyu

Anomaly detection (AD) is a task that distinguishes normal and abnormal data, which is important for applying automation technologies of the manufacturing facilities. For MVTec dataset that is a representative AD dataset for industrial…

Computer Vision and Pattern Recognition · Computer Science 2025-06-11 Jongyub Seok , Chanjin Kang

Lack of audio-video synchronization is a common problem during television broadcasts and video conferencing, leading to an unsatisfactory viewing experience. A widely accepted paradigm is to create an error detection mechanism that…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Akash Gupta , Rohun Tripathi , Wondong Jang

Due to the limited availability of anomalous samples for training, video anomaly detection is commonly viewed as a one-class classification problem. Many prevalent methods investigate the reconstruction difference produced by AutoEncoders…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Xiangyu Huang , Caidan Zhao , Chenxing Gao , Lvdong Chen , Zhiqiang Wu

Industrial anomaly classification (AC) is an indispensable task in industrial manufacturing, which guarantees quality and safety of various product. To address the scarcity of data in industrial scenarios, lots of few-shot anomaly detection…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Zuo Zuo , Jiahao Dong , Yao Wu , Yanyun Qu , Zongze Wu

Detecting surface anomalies of industrial materials poses a significant challenge within a myriad of industrial manufacturing processes. In recent times, various methodologies have emerged, capitalizing on the advantages of employing a…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Simon Thomine , Hichem Snoussi

Although existing image anomaly detection methods yield impressive results, they are mostly an offline learning paradigm that requires excessive data pre-collection, limiting their adaptability in industrial scenarios with online streaming…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Han Gao , Huiyuan Luo , Fei Shen , Zhengtao Zhang