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Pretraining robust vision or multimodal foundation models (e.g., CLIP) relies on large-scale datasets that may be noisy, potentially misaligned, and have long-tail distributions. Previous works have shown promising results in augmenting…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Qingqing Cao , Mahyar Najibi , Sachin Mehta

Anomaly inspection plays a vital role in industrial manufacturing, but the scarcity of anomaly samples significantly limits the effectiveness of existing methods in tasks such as localization and classification. While several anomaly…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Yilin Lu , Jianghang Lin , Linhuang Xie , Kai Zhao , Yansong Qu , Shengchuan Zhang , Liujuan Cao , Rongrong Ji

Visual anomaly detection (AD) presents significant challenges due to the scarcity of anomalous data samples. While numerous works have been proposed to synthesize anomalous samples, these synthetic anomalies often lack authenticity or…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Han Sun , Yunkang Cao , Hao Dong , Olga Fink

Video anomaly detection refers to the identification of events that deviate from the expected behavior. Due to the lack of anomalous samples in training, video anomaly detection becomes a very challenging task. Existing methods almost…

Computer Vision and Pattern Recognition · Computer Science 2022-04-11 Xiangyu Huang , Caidan Zhao , Yilin Wang , Zhiqiang Wu

Prompt Tuning has emerged as a prominent research paradigm for adapting vision-language models to various downstream tasks. However, recent research indicates that prompt tuning methods often lead to overfitting due to limited training…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Jingchen Sun , Rohan Sharma , Vishnu Suresh Lokhande , Changyou Chen

Recent text-to-image diffusion models have significantly improved visual quality and text alignment. However, generating a sequence of images while preserving consistent character identity across diverse scene descriptions remains a…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Shin Seong Kim , Minjung Shin , Hyunin Cho , Youngjung Uh

We propose Anomagic, a zero-shot anomaly generation method that produces semantically coherent anomalies without requiring any exemplar anomalies. By unifying both visual and textual cues through a crossmodal prompt encoding scheme,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Yuxin Jiang , Wei Luo , Hui Zhang , Qiyu Chen , Haiming Yao , Weiming Shen , Yunkang Cao

The scarcity of high-quality public log datasets has become a critical bottleneck in advancing log-based anomaly detection techniques. Current datasets exhibit three fundamental limitations: (1) incomplete event coverage, (2) artificial…

Software Engineering · Computer Science 2025-04-17 Xinyu Li , Yingtong Huo , Chenxi Mao , Shiwen Shan , Yuxin Su , Dan Li , Zibin Zheng

Anomaly detection plays a crucial role in various real-world applications, including healthcare and finance systems. Owing to the limited number of anomaly labels in these complex systems, unsupervised anomaly detection methods have…

Machine Learning · Computer Science 2023-10-10 Zongyuan Huang , Baohua Zhang , Guoqiang Hu , Longyuan Li , Yanyan Xu , Yaohui Jin

Controllable speech synthesis aims to control the style of generated speech using reference input, which can be of various modalities. Existing face-based methods struggle with robustness and generalization due to data quality constraints,…

Sound · Computer Science 2025-06-27 Rui Niu , Weihao Wu , Jie Chen , Long Ma , Zhiyong Wu

Anomaly detection is a critical task across numerous domains and modalities, yet existing methods are often highly specialized, limiting their generalizability. These specialized models, tailored for specific anomaly types like textural…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Zhaopeng Gu , Bingke Zhu , Guibo Zhu , Yingying Chen , Wei Ge , Ming Tang , Jinqiao Wang

The performance of visual anomaly inspection in industrial quality control is often constrained by the scarcity of real anomalous samples. Consequently, anomaly synthesis techniques have been developed to enlarge training sets and enhance…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Yishen Liu , Hongcang Chen , Pengcheng Zhao , Yunfan Bao , Yuxi Tian , Jieming Zhang , Hao Chen , Zheng Zhi , Yongchun Liu , Ying Li , Dongpu Cao

Weakly supervised multimodal video anomaly detection has gained significant attention, yet the potential of the text modality remains under-explored. Text provides explicit semantic information that can enhance anomaly characterization and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Shengyang Sun , Jiashen Hua , Junyi Feng , Xiaojin Gong

Anomaly detection plays a vital role in industrial manufacturing. Due to the scarcity of real defect images, unsupervised approaches that rely solely on normal images have been extensively studied. Recently, diffusion-based generative…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Sungho Kang , Hyunkyu Park , Yeonho Lee , Hanbyul Lee , Mijoo Jeong , YeongHyeon Park , Injae Lee , Juneho Yi

With the increasing adoption of video anomaly detection in intelligent surveillance domains, conventional visual-based detection approaches often struggle with information insufficiency and high false-positive rates in complex environments.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Peng Wu , Wanshun Su , Guansong Pang , Yujia Sun , Qingsen Yan , Peng Wang , Yanning Zhang

Multi-camera systems provide richer contextual information for industrial anomaly detection. However, traditional methods process each view independently, disregarding the complementary information across viewpoints. Existing multi-view…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Yifan Liu , Xun Xu , Shijie Li , Jingyi Liao , Xulei Yang

Recent years have seen a surge of interest in anomaly detection for tackling industrial defect detection, event detection, etc. However, existing unsupervised anomaly detectors, particularly those for the vision modality, face significant…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Dong Chen , Kaihang Pan , Guoming Wang , Yueting Zhuang , Siliang Tang

To enhance the controllability of text-to-image diffusion models, current ControlNet-like models have explored various control signals to dictate image attributes. However, existing methods either handle conditions inefficiently or use a…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Qingdong He , Jinlong Peng , Pengcheng Xu , Boyuan Jiang , Xiaobin Hu , Donghao Luo , Yong Liu , Yabiao Wang , Chengjie Wang , Xiangtai Li , Jiangning Zhang

Unsupervised anomaly detection methods can identify surface defects in industrial images by leveraging only normal samples for training. Due to the risk of overfitting when learning from a single class, anomaly synthesis strategies are…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Qiyu Chen , Huiyuan Luo , Han Gao , Chengkan Lv , Zhengtao Zhang

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