Image anomalies: A review and synthesis of detection methods

T Ehret, A Davy, JM Morel, M Delbracio - Journal of Mathematical Imaging …, 2019 - Springer
We review the broad variety of methods that have been proposed for anomaly detection in
images. Most methods found in the literature have in mind a particular application. Yet we …

A critical literature survey and prospects on tampering and anomaly detection in image data

KAP da Costa, JP Papa, LA Passos, D Colombo… - Applied Soft …, 2020 - Elsevier
Concernings related to image security have increased in the last years. One of the main
reasons relies on the replacement of conventional photography to digital images, once the …

Glad: A global-to-local anomaly detector

A Artola, Y Kolodziej, JM Morel… - Proceedings of the …, 2023 - openaccess.thecvf.com
Learning to detect automatic anomalies in production plants remains a machine learning
challenge. Since anomalies by definition cannot be learned, their detection must rely on a …

Jade owl: Jpeg 2000 forensics by wavelet offset consistency analysis

Q Bammey - 2023 8th International Conference on Image …, 2023 - ieeexplore.ieee.org
In a world teeming with digital images, the credibility of visual data has become of
paramount importance. While it is now simpler than ever to manipulate an image for …

Denoising: A powerful building-block for imaging, inverse problems, and machine learning

P Milanfar, M Delbracio - arXiv preprint arXiv:2409.06219, 2024 - arxiv.org
Denoising, the process of reducing random fluctuations in a signal to emphasize essential
patterns, has been a fundamental problem of interest since the dawn of modern scientific …

Jpeg grid detection based on the number of dct zeros and its application to automatic and localized forgery detection

T Nikoukhah, J Anger, T Ehret, M Colom… - IEEE/CVF Conference …, 2019 - hal.science
This work proposes a novel method for detecting JPEG compression, as well as its grid
origin, based on counting the number of zeros in the DCT of 8× 8 blocks. When applied …

U-flow: A u-shaped normalizing flow for anomaly detection with unsupervised threshold

M Tailanian, Á Pardo, P Musé - Journal of Mathematical Imaging and …, 2024 - Springer
In this work, we propose a one-class self-supervised method for anomaly segmentation in
images that benefits from both a modern machine learning approach and a more classic …

Semi-supervised anomaly detection for visual quality inspection

P Napoletano, F Piccoli, R Schettini - Expert Systems with Applications, 2021 - Elsevier
In this paper a semi-supervised method for the detection of anomalies in both texture-and
object-based product images is presented. The method exploits a pre-trained Convolutional …

CNN-based minor fabric defects detection

Z Wen, Q Zhao, L Tong - International Journal of Clothing Science and …, 2021 - emerald.com
Purpose The purpose of this paper is to present a novel method for minor fabric defects
detection. Design/methodology/approach This paper proposes a PETM-CNN algorithm …

How to reduce anomaly detection in images to anomaly detection in noise

T Ehret, A Davy, M Delbracio, JM Morel - Image Processing On Line, 2019 - ipol.im
Anomaly detectors address the difficult problem of detecting automatically exceptions in a
background image, that can be as diverse as a fabric or a mammography. Detection …