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The growing realism of AI-generated images produced by recent GAN and diffusion models has intensified concerns over the reliability of visual media. Yet, despite notable progress in deepfake detection, current forensic systems degrade…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Anshul Bagaria

Within (semi-)automated visual inspection, learning-based approaches for assessing visual defects, including deep neural networks, enable the processing of otherwise small defect patterns in pixel size on high-resolution imagery. The…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 André Luiz B. Vieira e Silva , Francisco Simões , Danny Kowerko , Tobias Schlosser , Felipe Battisti , Veronica Teichrieb

The rapid advancement of machine learning technologies raises questions about the security of machine learning models, with respect to both training-time (poisoning) and test-time (evasion, impersonation, and inversion) attacks. Models…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Xinheng Xie , Kureha Yamaguchi , Margaux Leblanc , Simon Malzard , Varun Chhabra , Victoria Nockles , Yue Wu

Recent works in self-supervised learning have shown impressive results on single-object images, but they struggle to perform well on complex multi-object images as evidenced by their poor visual grounding. To demonstrate this concretely, we…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Aishwarya Agarwal , Srikrishna Karanam , Balaji Vasan Srinivasan

Vision-language models (VLMs) have recently emerged as a promising paradigm for video anomaly detection (VAD) due to their strong visual reasoning ability and natural language-based explainability. In this paper, we aim to address a key…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Mitchell Piehl , Muchao Ye

Image classification is a crucial task in machine learning with widespread practical applications. The existing classical framework for image classification typically utilizes a global pooling operation at the end of the network to reduce…

Quantum Physics · Physics 2024-03-07 Yixiong Chen

Anomaly Detection (AD) in images is a fundamental computer vision problem and refers to identifying images and image substructures that deviate significantly from the norm. Popular AD algorithms commonly try to learn a model of normality…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Oliver Rippel , Patrick Mertens , Dorit Merhof

Video Anomaly Detection (VAD) is an essential yet challenging task in signal processing. Since certain anomalies cannot be detected by isolated analysis of either temporal or spatial information, the interaction between these two types of…

Computer Vision and Pattern Recognition · Computer Science 2023-07-07 Zhiyuan Ning , Zhangxun Li , Zhengliang Guo , Zile Wang , Liang Song

Video anomaly understanding (VAU) aims to provide detailed interpretation and semantic comprehension of anomalous events within videos, addressing limitations of traditional methods that focus solely on detecting and localizing anomalies.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-15 Ying Cheng , Yu-Ho Lin , Min-Hung Chen , Fu-En Yang , Shang-Hong Lai

Unsupervised learning can leverage large-scale data sources without the need for annotations. In this context, deep learning-based autoencoders have shown great potential in detecting anomalies in medical images. However, especially…

Image and Video Processing · Electrical Eng. & Systems 2020-01-03 David Zimmerer , Simon Kohl , Jens Petersen , Fabian Isensee , Klaus Maier-Hein

Generative models based on variational autoencoders are a popular technique for detecting anomalies in images in a semi-supervised context. A common approach employs the anomaly score to detect the presence of anomalies, and it is known to…

Machine Learning · Computer Science 2024-07-30 Muhammad Rashid , Elvio Amparore , Enrico Ferrari , Damiano Verda

Visual autoregressive (VAR) models have recently emerged as a promising alternative for image generation, offering stable training, non-iterative inference, and high-fidelity synthesis through next-scale prediction. This encourages the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Cencen Liu , Dongyang Zhang , Wen Yin , Jielei Wang , Tianyu Li , Ji Guo , Wenbo Jiang , Guoqing Wang , Guoming Lu

Mitigating biases in computer vision models is an essential step towards the trustworthiness of artificial intelligence models. Existing bias mitigation methods focus on a small set of predefined biases, limiting their applicability in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Ioannis Sarridis , Christos Koutlis , Symeon Papadopoulos , Christos Diou

The rapid progression of generative AI (GenAI) technologies has heightened concerns regarding the misuse of AI-generated imagery. To address this issue, robust detection methods have emerged as particularly compelling, especially in…

Graphics · Computer Science 2025-04-07 Hongfei Cai , Chi Liu , Sheng Shen , Youyang Qu , Peng Gui

The rapid development of deep learning and generative AI technologies has profoundly transformed the digital contact landscape, creating realistic Deepfake that poses substantial challenges to public trust and digital media integrity. This…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Ying Xu , Marius Pedersen , Kiran Raja

Unsupervised anomaly detection (UAD) from images strives to model normal data distributions, creating discriminative representations to distinguish and precisely localize anomalies. Despite recent advancements in the efficient and unified…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Wenxin Ma , Qingsong Yao , Xiang Zhang , Zhelong Huang , Zihang Jiang , S. Kevin Zhou

A current trend in industries such as semiconductors and foundry is to shift their visual inspection processes to Automatic Visual Inspection (AVI) systems, to reduce their costs, mistakes, and dependency on human experts. This paper…

Computer Vision and Pattern Recognition · Computer Science 2021-09-22 Masoud Jalayer , Reza Jalayer , Amin Kaboli , Carlotta Orsenigo , Carlo Vercellis

Advancements in optical quantum technologies have been enabled by the generation, manipulation, and characterization of light, with identification based on its photon statistics. However, characterizing light and its sources through single…

Quantum Physics · Physics 2024-05-09 Mahesh Bhupati , Abhishek Mall , Anshuman Kumar , Pankaj K. Jha

Time series anomaly detection (TSAD) is essential for maintaining the reliability and security of IoT-enabled service systems. Existing methods require training one specific model for each dataset, which exhibits limited generalization…

Machine Learning · Computer Science 2026-04-23 PengYu Chen , Shang Wan , Xiaohou Shi , Yuan Chang , Yan Sun , Sajal K. Das

AI explainability improves the transparency of models, making them more trustworthy. Such goals are motivated by the emergence of deep learning models, which are obscure by nature; even in the domain of images, where deep learning has…

Machine Learning · Computer Science 2022-03-01 Anna Arias-Duart , Ferran Parés , Dario Garcia-Gasulla , Victor Gimenez-Abalos