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We consider the problem of anomaly detection in images, and present a new detection technique. Given a sample of images, all known to belong to a "normal" class (e.g., dogs), we show how to train a deep neural model that can detect…

Machine Learning · Computer Science 2018-11-12 Izhak Golan , Ran El-Yaniv

Successive image generation using cyclic transformations is demonstrated by extending the CycleGAN model to transform images among three different categories. Repeated application of the trained generators produces sequences of images that…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Takaya Tanaka , Yutaka Yamaguti

Generative adversarial networks (GANs) are able to model the complex highdimensional distributions of real-world data, which suggests they could be effective for anomaly detection. However, few works have explored the use of GANs for the…

Machine Learning · Computer Science 2019-05-03 Houssam Zenati , Chuan Sheng Foo , Bruno Lecouat , Gaurav Manek , Vijay Ramaseshan Chandrasekhar

In this work, we present an application of domain randomization and generative adversarial networks (GAN) to train a near real-time object detector for industrial electric parts, entirely in a simulated environment. Large scale availability…

Computer Vision and Pattern Recognition · Computer Science 2018-06-12 Fernando Camaro Nogues , Andrew Huie , Sakyasingha Dasgupta

Most image-to-image translation models postulate that a unique correspondence exists between the semantic classes of the source and target domains. However, this assumption does not always hold in real-world scenarios due to divergent…

Computer Vision and Pattern Recognition · Computer Science 2024-04-01 Sidi Wu , Yizi Chen , Samuel Mermet , Lorenz Hurni , Konrad Schindler , Nicolas Gonthier , Loic Landrieu

In many clinical settings, the use of both Computed Tomography (CT) and Magnetic Resonance (MRI) is necessary to pursue a thorough understanding of the patient's anatomy and to plan a suitable therapeutical strategy; this is often the case…

Image and Video Processing · Electrical Eng. & Systems 2024-07-16 Leonardo Crespi , Samuele Camnasio , Damiano Dei , Nicola Lambri , Pietro Mancosu , Marta Scorsetti , Daniele Loiacono

In many anomaly detection tasks, where anomalous data rarely appear and are difficult to collect, training using only normal data is important. Although it is possible to manually create anomalous data using prior knowledge, they may be…

Machine Learning · Computer Science 2022-05-10 Hironori Murase , Kenji Fukumizu

The performances of defect inspection have been severely hindered by insufficient defect images in industries, which can be alleviated by generating more samples as data augmentation. We propose the first defect image generation method in…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Yuxuan Duan , Yan Hong , Li Niu , Liqing Zhang

Polarimetric imaging, along with deep learning, has shown improved performances on different tasks including scene analysis. However, its robustness may be questioned because of the small size of the training datasets. Though the issue…

Computer Vision and Pattern Recognition · Computer Science 2022-06-16 Cyprien Ruffino , Rachel Blin , Samia Ainouz , Gilles Gasso , Romain Hérault , Fabrice Meriaudeau , Stéphane Canu

The rise of automation and machine learning (ML) in electron microscopy has the potential to revolutionize materials research through autonomous data collection and processing. A significant challenge lies in developing ML models that…

Materials Science · Physics 2023-05-31 Abid Khan , Chia-Hao Lee , Pinshane Y. Huang , Bryan K. Clark

Railway axle maintenance is critical to avoid catastrophic failures. Nowadays, condition monitoring techniques are becoming more prominent in the industry to prevent enormous costs and damage to human lives. This paper proposes the…

Machine Learning · Computer Science 2025-02-27 Antía López Galdo , Alejandro Guerrero-López , Pablo M. Olmos , María Jesús Gómez García

Deconvolution microscopy has been extensively used to improve the resolution of the wide-field fluorescent microscopy, but the performance of classical approaches critically depends on the accuracy of a model and optimization algorithms.…

Image and Video Processing · Electrical Eng. & Systems 2020-07-09 Sungjun Lim , Hyoungjun Park , Sang-Eun Lee , Sunghoe Chang , Jong Chul Ye

Despite the recent success in applying supervised deep learning to medical imaging tasks, the problem of obtaining large and diverse expert-annotated datasets required for the development of high performant models remains particularly…

Computer Vision and Pattern Recognition · Computer Science 2019-11-21 Amirata Ghorbani , Vivek Natarajan , David Coz , Yuan Liu

Deep learning models have achieved great success in recent years but progress in some domains like cybersecurity is stymied due to a paucity of realistic datasets. Organizations are reluctant to share such data, even internally, due to…

Machine Learning · Computer Science 2021-08-04 Shengzhe Xu , Manish Marwah , Martin Arlitt , Naren Ramakrishnan

Anomaly detection plays in many fields of research, along with the strongly related task of outlier detection, a very important role. Especially within the context of the automated analysis of video material recorded by surveillance…

Computer Vision and Pattern Recognition · Computer Science 2019-08-09 Thomas Golda , Nils Murzyn , Chengchao Qu , Kristian Kroschel

Anomaly detection, or outlier detection, is a crucial task in various domains to identify instances that significantly deviate from established patterns or the majority of data. In the context of autonomous driving, the identification of…

Computer Vision and Pattern Recognition · Computer Science 2023-08-07 Martin Bikandi , Gorka Velez , Naiara Aginako , Itziar Irigoien

The external visual inspections of rolling stock's underfloor equipment are currently being performed via human visual inspection. In this study, we attempt to partly automate visual inspection by investigating anomaly inspection algorithms…

Computer Vision and Pattern Recognition · Computer Science 2022-12-23 Yohei Baba , Takuro Hoshi , Ryosuke Mori , Gaurang Gavai

Railroad tracks need to be periodically inspected and monitored to ensure safe transportation. Automated track inspection using computer vision and pattern recognition methods have recently shown the potential to improve safety by allowing…

Computer Vision and Pattern Recognition · Computer Science 2015-09-18 Xavier Gibert , Vishal M. Patel , Rama Chellappa

Millions of human casualties resulting from train accidents globally are caused by the inefficient, manual track inspections. Government agencies are seriously concerned about the safe operations of the rail industry after series of…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Kirthi Kumar , Anuraag Kaashyap

Recent breakthroughs in synthetic data generation approaches made it possible to produce highly photorealistic images which are hardly distinguishable from real ones. Furthermore, synthetic generation pipelines have the potential to…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Alon Shoshan , Nadav Bhonker , Igor Kviatkovsky , Matan Fintz , Gerard Medioni