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Related papers: Anomaly-Aware Vision-Language Adapters for Zero-Sh…

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Semi-supervised anomaly detection~(SSAD) is a task where normal data and a limited number of anomalous data are available for training. In practical situations, SSAD methods suffer adapting to domain shifts, since anomalous data are…

Machine Learning · Computer Science 2023-04-06 Tomoya Nishida , Takashi Endo , Yohei Kawaguchi

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…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Tai Le-Gia

Image Anomaly Detection has been a challenging task in Computer Vision field. The advent of Vision-Language models, particularly the rise of CLIP-based frameworks, has opened new avenues for zero-shot anomaly detection. Recent studies have…

Computer Vision and Pattern Recognition · Computer Science 2024-05-09 Zhaoxiang Zhang , Hanqiu Deng , Jinan Bao , Xingyu Li

Anomaly detection in computational pathology aims to identify rare and scarce anomalies where disease-related data are often limited or missing. Existing anomaly detection methods, primarily designed for industrial settings, face…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Jinsol Song , Jiamu Wang , Anh Tien Nguyen , Keunho Byeon , Sangjeong Ahn , Sung Hak Lee , Jin Tae Kwak

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.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Canhui Tang , Sanping Zhou , Haoyue Shi , Le Wang

Anomaly detection (AD) identifies outliers for applications like defect and lesion detection. While CLIP shows promise for zero-shot AD tasks due to its strong generalization capabilities, its inherent Anomaly-Unawareness leads to limited…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Wenxin Ma , Xu Zhang , Qingsong Yao , Fenghe Tang , Chenxu Wu , Yingtai Li , Rui Yan , Zihang Jiang , S. Kevin Zhou

Vision-Language Models (VLMs), particularly CLIP, have revolutionized anomaly detection by enabling zero-shot and few-shot defect identification without extensive labeled datasets. By learning aligned representations of images and text,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Mohit Kakda , Mirudula Shri Muthukumaran , Uttapreksha Patel , Lawrence Swaminathan Xavier Prince

Zero-Shot image Anomaly Detection (ZSAD) aims to detect and localise anomalies without access to any normal training samples of the target data. While recent ZSAD approaches leverage additional modalities such as language to generate…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Samet Hicsonmez , Abd El Rahman Shabayek , Djamila Aouada

Visual anomaly detection has been widely used in industrial inspection and medical diagnosis. Existing methods typically demand substantial training samples, limiting their utility in zero-/few-shot scenarios. While recent efforts have…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Qingqing Fang , Wenxi Lv , Qinliang Su

Large vision-language models (LVLMs) are markedly proficient in deriving visual representations guided by natural language. Recent explorations have utilized LVLMs to tackle zero-shot visual anomaly detection (VAD) challenges by pairing…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Jiaqi Zhu , Shaofeng Cai , Fang Deng , Beng Chin Ooi , Junran Wu

Anomaly detection has many important applications, such as monitoring industrial equipment. Despite recent advances in anomaly detection with deep-learning methods, it is unclear how existing solutions would perform under…

Sound · Computer Science 2022-04-06 Bingqing Chen , Luca Bondi , Samarjit Das

Zero-shot anomaly detection (ZSAD) enables identifying and localizing defects in unseen categories by relying solely on generalizable features rather than requiring any labeled examples of anomalies. However, existing ZSAD methods, whether…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Zihan Wang , Samira Ebrahimi Kahou , Narges Armanfard

Modern visual systems have a wide range of potential applications in vision tasks for natural science research, such as aiding in species discovery, monitoring animals in the wild, and so on. However, real-world vision tasks may experience…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Kai Yi , Paul Janson , Wenxuan Zhang , Mohamed Elhoseiny

The collection and detection of video anomaly data has long been a challenging problem due to its rare occurrence and spatio-temporal scarcity. Existing video anomaly detection (VAD) methods under perform in open-world scenarios. Key…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Zunkai Dai , Ke Li , Jiajia Liu , Jie Yang , Yuanyuan Qiao

The application of deep learning in visual anomaly detection has gained widespread popularity due to its potential use in quality control and manufacturing. Current standard methods are Unsupervised, where a clean dataset is utilised to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Shaurya Gupta , Neil Gautam , Anurag Malyala

Recently, large vision and language models have shown their success when adapting them to many downstream tasks. In this paper, we present a unified framework named CLIP-ADA for Anomaly Detection by Adapting a pre-trained CLIP model. To…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Yuxuan Cai , Xinwei He , Dingkang Liang , Ao Tong , Xiang Bai

Zero-shot anomaly detection (ZSAD) enables anomaly detection without normal samples from target categories, addressing scenarios where task-specific training data is unavailable. However, existing ZSAD methods either neglect adaptation of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Kiyoon Jeong , Jaehyuk Heo , Junyeong Son , Pilsung Kang

This technical report outlines our submission to the zero-shot track of the Visual Anomaly and Novelty Detection (VAND) 2023 Challenge. Building on the performance of the WINCLIP framework, we aim to enhance the system's localization…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Matthew Baugh , James Batten , Johanna P. Müller , Bernhard Kainz

One-class anomaly detection aims to detect objects that do not belong to a predefined normal class. In practice training data lack those anomalous samples; hence state-of-the-art methods are trained to discriminate between normal and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-10 Romain Hermary , Vincent Gaudillière , Abd El Rahman Shabayek , Djamila Aouada

Zero-shot recognition aims to classify an image by selecting the most compatible label description from a set of candidate classes without any task-specific supervision. In fine-grained settings, however, the relevant evidence often lies in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Junyi Hu , Qiji Zhou , Lei Zhang , Yue Zhang