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The rapid adoption of diffusion-based generative models has intensified concerns over the attribution and integrity of AI-generated content (AIGC). Existing single-domain watermarking methods either fail under regeneration, remain…

Cryptography and Security · Computer Science 2026-04-22 JinFeng Xie , Chengfu Ou , Peipeng Yu , Xiaoyu Zhou , Dingding Huang , Jianwei Fei , Zixuan Shen , Zhihua Xia

Unsupervised Anomaly Detection (UAD) methods aim to identify anomalies in test samples comparing them with a normative distribution learned from a dataset known to be anomaly-free. Approaches based on generative models offer…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Sergio Naval Marimont , Vasilis Siomos , Matthew Baugh , Christos Tzelepis , Bernhard Kainz , Giacomo Tarroni

Recent years have witnessed the increasing application of place recognition in various environments, such as city roads, large buildings, and a mix of indoor and outdoor places. This task, however, still remains challenging due to the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-24 Haowen Lai , Peng Yin , Sebastian Scherer

In the context of high usability in single-class anomaly detection models, recent academic research has become concerned about the more complex multi-class anomaly detection. Although several papers have designed unified models for this…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Xi Jiang , Ying Chen , Qiang Nie , Jianlin Liu , Yong Liu , Chengjie Wang , Feng Zheng

Diffusion models have achieved remarkable success in image generation, with applications broadening across various domains. Inpainting is one such application that can benefit significantly from diffusion models. Existing methods either…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Sora Kim , Sungho Suh , Minsik Lee

We propose a landmark-constrained algorithm, LA-VDM (Landmark Accelerated Vector Diffusion Maps), to accelerate the Vector Diffusion Maps (VDM) framework built upon the Graph Connection Laplacian (GCL), which captures pairwise connection…

Machine Learning · Statistics 2026-03-24 Sing-Yuan Yeh , Yi-An Wu , Hau-Tieng Wu , Mao-Pei Tsui

Log-based anomaly detection (LAD) is critical for ensuring the reliability of large-scale distributed systems. However, most existing LAD approaches assume centralized training, which is often impractical due to privacy constraints and the…

Software Engineering · Computer Science 2025-12-10 Yihan Liao , Jacky Keung , Zhenyu Mao , Jingyu Zhang , Jialong Li

Audio-driven talking head generation is a significant and challenging task applicable to various fields such as virtual avatars, film production, and online conferences. However, the existing GAN-based models emphasize generating…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Jintao Tan , Xize Cheng , Lingyu Xiong , Lei Zhu , Xiandong Li , Xianjia Wu , Kai Gong , Minglei Li , Yi Cai

Anomaly detection (AD) is the identification of data samples that do not fit a learned data distribution. As such, AD systems can help physicians to determine the presence, severity, and extension of a pathology. Deep generative models,…

Image and Video Processing · Electrical Eng. & Systems 2021-04-12 Jaime Simarro , Ezequiel de la Rosa , Thijs Vande Vyvere , David Robben , Diana M. Sima

Anomaly Detection (AD) and Anomaly Localization (AL) are crucial in fields that demand high reliability, such as medical imaging and industrial monitoring. However, current AD and AL approaches are often susceptible to adversarial attacks…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Mojtaba Nafez , Amirhossein Koochakian , Arad Maleki , Jafar Habibi , Mohammad Hossein Rohban

Industrial anomaly detection (IAD) increasingly benefits from integrating 2D and 3D data, but robust cross-modal fusion remains challenging. We propose a novel unsupervised framework, Multi-Modal Attention-Driven Fusion Restoration (MAFR),…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Usman Ali , Ali Zia , Abdul Rehman , Umer Ramzan , Zohaib Hassan , Talha Sattar , Jing Wang , Wei Xiang

Early detection of Alzheimer's Disease (AD) is greatly beneficial to AD patients, leading to early treatments that lessen symptoms and alleviating financial burden of health care. As one of the leading signs of AD, language capability…

Computation and Language · Computer Science 2025-10-17 Yangyang Li

Methods for out-of-distribution (OOD) detection that scale to 3D data are crucial components of any real-world clinical deep learning system. Classic denoising diffusion probabilistic models (DDPMs) have been recently proposed as a robust…

LiDAR-based 3D object detection plays a critical role for reliable and safe autonomous driving systems. However, existing detectors often produce overly confident predictions for objects not belonging to known categories, posing significant…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Michael Kösel , Marcel Schreiber , Michael Ulrich , Claudius Gläser , Klaus Dietmayer

Recent progress in multimodal generation has increasingly combined autoregressive (AR) and diffusion-based approaches, leveraging their complementary strengths: AR models capture long-range dependencies and produce fluent, context-aware…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Junhao Chen , Yulia Tsvetkov , Xiaochuang Han

In recent years, Diffusion Models have become the new state-of-the-art in deep generative modeling, ending the long-time dominance of Generative Adversarial Networks. Inspired by the Regularization by Denoising principle, we introduce an…

Image and Video Processing · Electrical Eng. & Systems 2025-03-31 Pasquale Cascarano , Lorenzo Stacchio , Andrea Sebastiani , Alessandro Benfenati , Ulugbek S. Kamilov , Gustavo Marfia

Recent multimodal models for instruction-based face editing enable semantic manipulation but still struggle with precise attribute control and identity preservation. Structural facial representations such as landmarks are effective for…

Computer Vision and Pattern Recognition · Computer Science 2026-01-30 Zhenghao Zhang , Ziying Zhang , Junchao Liao , Xiangyu Meng , Qiang Hu , Siyu Zhu , Xiaoyun Zhang , Long Qin , Weizhi Wang

Discrete Diffusion Language Models have emerged as a compelling paradigm for unified multimodal generation, yet their deployment is hindered by high inference latency arising from iterative decoding. Existing acceleration strategies often…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Chenglin Wang , Yucheng Zhou , Shawn Chen , Tao Wang , Kai Zhang

Multi-class anomaly detection aims to build unified models across diverse product categories. However, as the number of categories grows, its performance often degrades due to increasingly complex and heterogeneous normal distributions. To…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Yaoxuan Feng , Yuxin Li , Weijiang Lv , Zixuan Zhao , Yubiao Wang , Wenchao Chen , Bo Chen , Hongwei Liu

Video Anomaly Detection (VAD) can play a key role in spotting unusual activities in video footage. VAD is difficult to use in real-world settings due to the dynamic nature of human actions, environmental variations, and domain shifts.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Shanle Yao , Ghazal Alinezhad Noghre , Armin Danesh Pazho , Hamed Tabkhi