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We propose a novel method for Zero-Shot Anomaly Localization on textures. The task refers to identifying abnormal regions in an otherwise homogeneous image. To obtain a high-fidelity localization, we leverage a bijective mapping derived…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Andrei-Timotei Ardelean , Tim Weyrich

Benefited from the rapid and sustainable development of synthetic aperture radar (SAR) sensors, change detection from SAR images has received increasing attentions over the past few years. Existing unsupervised deep learning-based methods…

图像与视频处理 · 电气工程与系统科学 2022-03-15 Junjie Wang , Feng Gao , Junyu Dong , Qian Du , Heng-Chao Li

Zero-Shot Video Anomaly Detection (ZS-VAD) requires temporally localizing anomalies without target domain training data, which is a crucial task due to various practical concerns, e.g., data privacy or new surveillance deployments.…

计算机视觉与模式识别 · 计算机科学 2026-04-30 Canhui Tang , Sanping Zhou , Haoyue Shi , Le Wang

Zero-shot image anomaly classification (AC) and segmentation (AS) are vital for industrial quality control, detecting defects without prior training data. Existing representation-based methods compare patch features with nearest neighbors…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Tai Le-Gia , Ahn Jaehyun

Real-time single-stage object detectors based on deep learning still remain less accurate than more complex ones. The trade-off between model performance and computational speed is a major challenge. In this paper, we propose a new way to…

计算机视觉与模式识别 · 计算机科学 2020-03-18 Florian Chabot , Quoc-Cuong Pham , Mohamed Chaouch

Current self-supervised denoising methods for paired noisy images typically involve mapping one noisy image through the network to the other noisy image. However, after measuring the spectral bias of such methods using our proposed Image…

计算机视觉与模式识别 · 计算机科学 2025-10-02 Wang Zhang , Huaqiu Li , Xiaowan Hu , Tao Jiang , Zikang Chen , Haoqian Wang

Anomaly detection in surveillance videos has been recently gaining attention. Even though the performance of state-of-the-art methods on publicly available data sets has been competitive, they demand a massive amount of training data. Also,…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Keval Doshi , Yasin Yilmaz

Unsupervised reconstruction networks using self-attention transformers have achieved state-of-the-art performance for multi-class (unified) anomaly detection with a single model. However, these self-attention reconstruction models primarily…

计算机视觉与模式识别 · 计算机科学 2025-05-15 Bin-Bin Gao

Traditional reconstruction-based methods have struggled to achieve competitive performance in anomaly detection. In this paper, we introduce Denoising Diffusion Anomaly Detection (DDAD), a novel denoising process for image reconstruction…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Arian Mousakhan , Thomas Brox , Jawad Tayyub

Neural network models that are not conditioned on class identities were shown to facilitate knowledge transfer between classes and to be well-suited for one-shot learning tasks. Following this motivation, we further explore and establish…

机器学习 · 统计学 2018-06-28 Gil Keren , Maximilian Schmitt , Thomas Kehrenberg , Björn Schuller

Self-supervised feature reconstruction methods have shown promising advances in industrial image anomaly detection and localization. Despite this progress, these methods still face challenges in synthesizing realistic and diverse anomaly…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Ximiao Zhang , Min Xu , Xiuzhuang Zhou

Image anomaly detection consists in detecting images or image portions that are visually different from the majority of the samples in a dataset. The task is of practical importance for various real-life applications like biomedical image…

计算机视觉与模式识别 · 计算机科学 2022-10-28 Axel De Nardin , Pankaj Mishra , Gian Luca Foresti , Claudio Piciarelli

Single-shot imaging with femtosecond X-ray lasers is a powerful measurement technique that can achieve both high spatial and temporal resolution. However, its accuracy has been severely limited by the difficulty of applying conventional…

Zero-shot anomaly classification and segmentation (AC/AS) aim to detect anomalous samples and regions without any training data, a capability increasingly crucial in industrial inspection and medical imaging. This dissertation aims to…

计算机视觉与模式识别 · 计算机科学 2025-12-03 Tai Le-Gia

We propose a novel deep neural network architecture for the challenging problem of single image dehazing, which aims to recover the clear image from a degraded hazy image. Instead of relying on hand-crafted image priors or explicitly…

计算机视觉与模式识别 · 计算机科学 2018-05-10 Zheng Xu , Xitong Yang , Xue Li , Xiaoshuai Sun

Although mainstream unsupervised anomaly detection (AD) (including image-level classification and pixel-level segmentation)algorithms perform well in academic datasets, their performance is limited in practical application due to the ideal…

计算机视觉与模式识别 · 计算机科学 2025-01-14 Chengjie Wang , Xi Jiang , Bin-Bin Gao , Zhenye Gan , Yong Liu , Feng Zheng , Lizhuang Ma

Single image dehazing is a prerequisite which affects the performance of many computer vision tasks and has attracted increasing attention in recent years. However, most existing dehazing methods emphasize more on haze removal but less on…

计算机视觉与模式识别 · 计算机科学 2021-09-23 Yan Li , De Cheng , Jiande Sun , Dingwen Zhang , Nannan Wang , Xinbo Gao

The pretraining-finetuning paradigm is a crucial strategy in metallic surface defect detection for mitigating the challenges posed by data scarcity. However, its implementation presents a critical dilemma. Pretraining on natural image…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Chuni Liu , Hongjie Li , Jiaqi Du , Yangyang Hou , Qian Sun , Lei Jin , Ke Xu

The major drawbacks with Satellite Images are low resolution, Low resolution makes it difficult to identify the objects present in Satellite images. We have experimented with several deep models available for Single Image Superresolution on…

图像与视频处理 · 电气工程与系统科学 2020-12-01 Shreya Roy , Anirban Chakraborty

Obtaining ground truth data in medical imaging has difficulties due to the fact that it requires a lot of annotating time from the experts in the field. Also, when trained with supervised learning, it detects only the cases included in the…

计算机视觉与模式识别 · 计算机科学 2022-12-26 Inha Kang , Jinah Park