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Prompt learning is an effective way to exploit the potential of large-scale pre-trained foundational models. Continuous prompts parameterize context tokens in prompts by turning them into differentiable vectors. Deep continuous prompts…

Machine Learning · Computer Science 2025-01-03 Zhenhan Huang , Tejaswini Pedapati , Pin-Yu Chen , Jianxi Gao

Pre-trained Vision-Language Models (VLMs) have recently shown promise in detecting anomalies. However, previous approaches are fundamentally limited by their reliance on human-designed prompts and the lack of accessible anomaly samples,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Pi-Wei Chen , Jerry Chun-Wei Lin , Wei-Han Chen , Jia Ji , Zih-Ching Chen , Feng-Hao Yeh , Chao-Chun Chen

Synthesizing anomaly samples has proven to be an effective strategy for self-supervised 2D industrial anomaly detection. However, this approach has been rarely explored in multi-modality anomaly detection, particularly involving 3D and RGB…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Kecen Li , Bingquan Dai , Jingjing Fu , Xinwen Hou

Point cloud (PCD) anomaly detection steadily emerges as a promising research area. This study aims to improve PCD anomaly detection performance by combining handcrafted PCD descriptions with powerful pre-trained 2D neural networks. To this…

Computer Vision and Pattern Recognition · Computer Science 2025-02-17 Yunkang Cao , Xiaohao Xu , Weiming Shen

Parameter-efficient fine-tuning strategies for foundation models in 1D textual and 2D visual analysis have demonstrated remarkable efficacy. However, due to the scarcity of point cloud data, pre-training large 3D models remains a…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Mengke Li , Lihao Chen , Peng Zhang , Yiu-ming Cheung , Hui Huang

Anomaly detection is a long-standing challenge in manufacturing systems. Traditionally, anomaly detection has relied on human inspectors. However, 3D point clouds have gained attention due to their robustness to environmental factors and…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Jiayu Liu , Shancong Mou , Nathan Gaw , Yinan Wang

2D-based Industrial Anomaly Detection has been widely discussed, however, multimodal industrial anomaly detection based on 3D point clouds and RGB images still has many untouched fields. Existing multimodal industrial anomaly detection…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Yue Wang , Jinlong Peng , Jiangning Zhang , Ran Yi , Yabiao Wang , Chengjie Wang

3D anomaly detection (3D-AD) plays a critical role in industrial manufacturing, particularly in ensuring the reliability and safety of core equipment components. Although existing 3D datasets like Real3D-AD and MVTec 3D-AD offer broad…

Computer Vision and Pattern Recognition · Computer Science 2025-11-06 Bingyang Guo , Hongjie Li , Ruiyun Yu , Hanzhe Liang , Jinbao Wang

Unsupervised Anomaly Detection (UAD) with incremental training is crucial in industrial manufacturing, as unpredictable defects make obtaining sufficient labeled data infeasible. However, continual learning methods primarily rely on…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Jiaqi Liu , Kai Wu , Qiang Nie , Ying Chen , Bin-Bin Gao , Yong Liu , Jinbao Wang , Chengjie Wang , Feng Zheng

Large pretrained vision foundation models have shown significant potential in various vision tasks. However, for industrial anomaly detection, the scarcity of real defect samples poses a critical challenge in leveraging these models. While…

Graphics · Computer Science 2025-04-18 Yifeng Cheng , Juan Du

3D shape anomaly detection is a crucial task for industrial inspection and geometric analysis. Existing deep learning approaches typically learn representations of normal shapes and identify anomalies via out-of-distribution feature…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Xueyang Kang , Zizhao Li , Tian Lan , Dong Gong , Kourosh Khoshelham , Liangliang Nan

Zero-shot learning on 3D point cloud data is a related underexplored problem compared to its 2D image counterpart. 3D data brings new challenges for ZSL due to the unavailability of robust pre-trained feature extraction models. To address…

Computer Vision and Pattern Recognition · Computer Science 2022-09-30 Majid Nasiri , Ali Cheraghian , Townim Faisal Chowdhury , Sahar Ahmadi , Morteza Saberi , Shafin Rahman

Zero-shot anomaly detection (ZSAD) targets the identification of anomalies within images from arbitrary novel categories. This study introduces AdaCLIP for the ZSAD task, leveraging a pre-trained vision-language model (VLM), CLIP. AdaCLIP…

Computer Vision and Pattern Recognition · Computer Science 2025-02-17 Yunkang Cao , Jiangning Zhang , Luca Frittoli , Yuqi Cheng , Weiming Shen , Giacomo Boracchi

3D anomaly detection plays a crucial role in monitoring parts for localized inherent defects in precision manufacturing. Embedding-based and reconstruction-based approaches are among the most popular and successful methods. However, there…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Zheyuan Zhou , Le Wang , Naiyu Fang , Zili Wang , Lemiao Qiu , Shuyou Zhang

Anomaly detection (AD) is a fundamental task of critical importance across numerous domains. Current systems increasingly operate in rapidly evolving environments that generate diverse yet interconnected data modalities -- such as time…

Machine Learning · Computer Science 2025-12-02 Zhongyuan Wu , Jingyuan Wang , Zexuan Cheng , Yilong Zhou , Weizhi Wang , Juhua Pu , Chao Li , Changqing Ma

High-resolution 3D point clouds are highly effective for detecting subtle structural anomalies in industrial inspection. However, their dense and irregular nature imposes significant challenges, including high computational cost,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-18 Zi Wang , Katsuya Hotta , Koichiro Kamide , Yawen Zou , Chao Zhang , Jun Yu

High-resolution point clouds~(HRPCD) anomaly detection~(AD) plays a critical role in precision machining and high-end equipment manufacturing. Despite considerable 3D-AD methods that have been proposed recently, they still cannot meet the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Hongze Zhu , Guoyang Xie , Chengbin Hou , Tao Dai , Can Gao , Jinbao Wang , Linlin Shen

Industrial anomaly detection is a critical component of modern manufacturing, yet the scarcity of defective samples restricts traditional detection methods to scenario-specific applications. Although Vision-Language Models (VLMs)…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Yanhui Li , Yunkang Cao , Chengliang Liu , Yuan Xiong , Xinghui Dong , Chao Huang

This paper investigates the 3D domain generalization (3DDG) ability of large 3D models based on prevalent prompt learning. Recent works demonstrate the performances of 3D point cloud recognition can be boosted remarkably by…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Hongyu Sun , Qiuhong Ke , Yongcai Wang , Wang Chen , Kang Yang , Deying Li , Jianfei Cai

Recent vision language models (VLMs) like CLIP have demonstrated impressive anomaly detection performance under significant distribution shift by utilizing high-level semantic information through text prompts. However, these models often…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Nadeem Nazer , Hongkuan Zhou , Lavdim Halilaj , Ylli Sadikaj , Steffen Staab