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How to explore useful features from images as prompts to guide the deep image restoration models is an effective way to solve image restoration. In contrast to mining spatial relations within images as prompt, which leads to characteristics…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Shihao Zhou , Jinshan Pan , Jinglei Shi , Duosheng Chen , Lishen Qu , Jufeng Yang

Image reconstruction-based anomaly detection has recently been in the spotlight because of the difficulty of constructing anomaly datasets. These approaches work by learning to model normal features without seeing abnormal samples during…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Chaewon Park , Minhyeok Lee , Suhwan Cho , Donghyeong Kim , Sangyoun Lee

Open-vocabulary object detection (OVOD) aims to detect both seen and unseen categories, yet existing methods often struggle to generalize to novel objects due to limited integration of global and local contextual cues. We propose…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Soichiro Okazaki , Tatsuya Sasaki , Hiroki Ohashi

Camouflaged object detection (COD) aims to identify objects in images that are well hidden in the environment due to their high similarity to the background in terms of texture and color. However, existing most boundary-guided camouflage…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Junmin Cai , Han Sun , Ningzhong Liu

Unsupervised anomaly detection plays a pivotal role in industrial defect inspection and medical image analysis, with most methods relying on the reconstruction framework. However, these methods may suffer from over-generalization, enabling…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Wei Luo , Peng Xing , Yunkang Cao , Haiming Yao , Weiming Shen , Zechao Li

Existing unsupervised distillation-based methods rely on the differences between encoded and decoded features to locate abnormal regions in test images. However, the decoder trained only on normal samples still reconstructs abnormal patch…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Xiaolei Wang , Xiaoyang Wang , Huihui Bai , Eng Gee Lim , Jimin Xiao

For the highly imbalanced credit card fraud detection problem, most existing methods either use data augmentation methods or conventional machine learning models, while neural network-based anomaly detection approaches are lacking.…

Machine Learning · Computer Science 2022-06-30 Tungyu Wu , Youting Wang

Unsupervised object discovery (UOD) has recently shown encouraging progress with the adoption of pre-trained Transformer features. However, current methods based on Transformers mainly focus on designing the localization head (e.g., seed…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Zhiwei Lin , Zengyu Yang , Yongtao Wang

Reactive anomaly detection methods, which are commonly deployed to identify anomalies after they occur based on observed deviations, often fall short in applications that demand timely intervention, such as industrial monitoring, finance,…

Machine Learning · Computer Science 2026-02-13 Luis Olmos , Rashida Hasan

Cross-layer feature pyramid networks (CFPNs) have achieved notable progress in multi-scale feature fusion and boundary detail preservation for salient object detection. However, traditional CFPNs still suffer from two core limitations: (1)…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Jin Lian , Zhongyu Wan , Ming Gao , JunFeng Chen

Neural networks are notorious for being overconfident predictors, posing a significant challenge to their safe deployment in real-world applications. While feature normalization has garnered considerable attention within the deep learning…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Sudarshan Regmi , Bibek Panthi , Sakar Dotel , Prashnna K. Gyawali , Danail Stoyanov , Binod Bhattarai

Multimodal feature reconstruction is a promising approach for 3D anomaly detection, leveraging the complementary information from dual modalities. We further advance this paradigm by utilizing multi-modal mentor learning, which fuses…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Hanzhe Liang

Financial markets are inherently volatile and prone to sudden disruptions such as market crashes, flash collapses, and liquidity crises. Accurate anomaly detection and early risk forecasting in financial time series are therefore crucial…

Machine Learning · Computer Science 2025-11-18 Ziling Fan , Ruijia Liang , Yiwen Hu

Bi-temporal change detection is highly sensitive to acquisition discrepancies, including illumination, season, and atmosphere, which often cause false alarms. We observe that genuine changes exhibit higher patch-wise singular-value entropy…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Zelin Lei , Yaoxing Ren , Jiaming Chang

Unsupervised Continuous Anomaly Detection (UCAD) is gaining attention for effectively addressing the catastrophic forgetting and heavy computational burden issues in traditional Unsupervised Anomaly Detection (UAD). However, existing UCAD…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Mingle Zhou , Jiahui Liu , Jin Wan , Gang Li , Min Li

The increasing availability of advanced image editing tools has led to a significant rise in manipulated digital content, posing serious challenges for digital forensics and information security. This study presents a transfer…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Fatma Betul Buyuk , Gozde Karatas Baydogmus , Ali Buldu , Ayaulym Tulendiyeva , Zhuldyz Baizhumanova

Recent advances in large-scale text-to-image generation models have led to a surge in subject-driven text-to-image generation, which aims to produce customized images that align with textual descriptions while preserving the identity of…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Kewen Chen , Xiaobin Hu , Wenqi Ren

Detecting and grounding multi-modal media manipulation (DGM^4) has become increasingly crucial due to the widespread dissemination of face forgery and text misinformation. In this paper, we present the Unified Frequency-Assisted transFormer…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Huan Liu , Zichang Tan , Qiang Chen , Yunchao Wei , Yao Zhao , Jingdong Wang

Fine-grained open-vocabulary object detection (FG-OVD) aims to detect novel object categories described by attribute-rich texts. While existing open-vocabulary detectors show promise at the base-category level, they underperform in…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Jiaming Li , Zhijia Liang , Weikai Chen , Lin Ma , Guanbin Li

In this work, we introduce OMG-Fuser, a fusion transformer-based network designed to extract information from various forensic signals to enable robust image forgery detection and localization. Our approach can operate with an arbitrary…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Dimitrios Karageorgiou , Giorgos Kordopatis-Zilos , Symeon Papadopoulos