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相关论文: AA-CLIP: Enhancing Zero-shot Anomaly Detection via…

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Contrastive Vision-Language Pre-training, known as CLIP, has provided a new paradigm for learning visual representations using large-scale image-text pairs. It shows impressive performance on downstream tasks by zero-shot knowledge…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Renrui Zhang , Zhang Wei , Rongyao Fang , Peng Gao , Kunchang Li , Jifeng Dai , Yu Qiao , Hongsheng Li

Industrial product inspection is often performed using Anomaly Detection (AD) frameworks trained solely on non-defective samples. Although defective samples can be collected during production, leveraging them usually requires pixel-level…

计算机视觉与模式识别 · 计算机科学 2025-09-08 Jingqi Wu , Hanxi Li , Lin Yuanbo Wu , Hao Chen , Deyin Liu , Peng Wang

In this paper, we aim to transfer CLIP's robust 2D generalization capabilities to identify 3D anomalies across unseen objects of highly diverse class semantics. To this end, we propose a unified framework to comprehensively detect and…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Qihang Zhou , Shibo He , Jiangtao Yan , Wenchao Meng , Jiming Chen

The inability of state-of-the-art semantic segmentation methods to detect anomaly instances hinders them from being deployed in safety-critical and complex applications, such as autonomous driving. Recent approaches have focused on either…

计算机视觉与模式识别 · 计算机科学 2021-03-10 Giancarlo Di Biase , Hermann Blum , Roland Siegwart , Cesar Cadena

Anomaly detection through video analysis is of great importance to detect any anomalous vehicle/human behavior at a traffic intersection. While most existing works use neural networks and conventional machine learning methods based on…

Cross-category anomaly detection for 3D point clouds aims to determine whether an unseen object belongs to a target category using only a few normal examples. Most existing methods rely on category-specific training, which limits their…

计算机视觉与模式识别 · 计算机科学 2026-02-12 Zi Wang , Katsuya Hotta , Koichiro Kamide , Yawen Zou , Jianjian Qin , Chao Zhang , Jun Yu

CLIP delivers strong zero-shot classification but remains highly vulnerable to adversarial attacks. Previous work of adversarial fine-tuning largely focuses on matching the predicted logits between clean and adversarial examples, which…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Wenjing lu , Zerui Tao , Dongping Zhang , Yuning Qiu , Yang Yang , Qibin Zhao

Benefiting from generalizability of vision-language models (VLMs) such as CLIP, many zero-/few-shot anomaly detection (AD) approaches have achieved impressive detection performance across various datasets. Nevertheless, they require…

计算机视觉与模式识别 · 计算机科学 2026-05-29 Yi Zhang , Jiawen Zhu , Lele Fu , Guansong Pang

Anomaly Detection (AD) is a critical task that involves identifying observations that do not conform to a learned model of normality. Prior work in deep AD is predominantly based on a familiarity hypothesis, where familiar features serve as…

机器学习 · 计算机科学 2024-02-27 Sarath Sivaprasad , Mario Fritz

Anomaly detection (AD) is the machine learning task of identifying highly discrepant abnormal samples by solely relying on the consistency of the normal training samples. Under the constraints of a distribution shift, the assumption that…

机器学习 · 计算机科学 2023-12-25 João B. S. Carvalho , Mengtao Zhang , Robin Geyer , Carlos Cotrini , Joachim M. Buhmann

This paper explores the problem of Generalist Anomaly Detection (GAD), aiming to train one single detection model that can generalize to detect anomalies in diverse datasets from different application domains without any further training on…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Jiawen Zhu , Guansong Pang

Contrastive Vision-Language Pre-training, known as CLIP, has provided a new paradigm for learning visual representations by using large-scale contrastive image-text pairs. It shows impressive performance on zero-shot knowledge transfer to…

计算机视觉与模式识别 · 计算机科学 2021-11-16 Renrui Zhang , Rongyao Fang , Wei Zhang , Peng Gao , Kunchang Li , Jifeng Dai , Yu Qiao , Hongsheng Li

Out-of-distribution states in robot manipulation often lead to unpredictable robot behavior or task failure, limiting success rates and increasing risk of damage. Anomaly detection (AD) can identify deviations from expected patterns in…

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

Contrastive Language-Image Pre-training (CLIP) has recently shown great promise in pixel-level zero-shot learning tasks. However, existing approaches utilizing CLIP's text and patch embeddings to generate semantic masks often misidentify…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Jingyao Li , Pengguang Chen , Shengju Qian , Shu Liu , Jiaya Jia

Despite inherent ill-definition, anomaly detection is a research endeavor of great interest within machine learning and visual scene understanding alike. Most commonly, anomaly detection is considered as the detection of outliers within a…

计算机视觉与模式识别 · 计算机科学 2019-05-03 Samet Akçay , Amir Atapour-Abarghouei , Toby P. Breckon

With a focus on abnormal events contained within untrimmed videos, there is increasing interest among researchers in video anomaly detection. Among different video anomaly detection scenarios, weakly-supervised video anomaly detection poses…

计算机视觉与模式识别 · 计算机科学 2023-09-29 Yidan Fan , Yongxin Yu , Wenhuan Lu , Yahong Han

Out-of-distribution detection (OOD) is a pivotal task for real-world applications that trains models to identify samples that are distributionally different from the in-distribution (ID) data during testing. Recent advances in AI,…

计算机视觉与模式识别 · 计算机科学 2025-05-06 Chaohua Li , Enhao Zhang , Chuanxing Geng , Songcan Chen

Despite its prevalent use in image-text matching tasks in a zero-shot manner, CLIP has been shown to be highly vulnerable to adversarial perturbations added onto images. Recent studies propose to finetune the vision encoder of CLIP with…

计算机视觉与模式识别 · 计算机科学 2025-03-06 Songlong Xing , Zhengyu Zhao , Nicu Sebe

Household environments are visually diverse. Embodied agents performing Vision-and-Language Navigation (VLN) in the wild must be able to handle this diversity, while also following arbitrary language instructions. Recently, Vision-Language…

计算机视觉与模式识别 · 计算机科学 2022-12-01 Vishnu Sashank Dorbala , Gunnar Sigurdsson , Robinson Piramuthu , Jesse Thomason , Gaurav S. Sukhatme