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Existing black-box attacks have demonstrated promising potential in creating adversarial examples (AE) to deceive deep learning models. Most of these attacks need to handle a vast optimization space and require a large number of queries,…

Computer Vision and Pattern Recognition · Computer Science 2023-10-12 Renyang Liu , Wei Zhou , Tianwei Zhang , Kangjie Chen , Jun Zhao , Kwok-Yan Lam

Diffusion models have revolutionized customized text-to-image generation, allowing for efficient synthesis of photos from personal data with textual descriptions. However, these advancements bring forth risks including privacy breaches and…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Cong Wan , Yuhang He , Xiang Song , Yihong Gong

Large Vision-Language Models (LVLMs) are foundational to modern multimodal applications, yet their susceptibility to adversarial attacks remains a critical concern. Prior white-box attacks rarely generalize across tasks, and black-box…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Hefei Mei , Zirui Wang , Chang Xu , Jianyuan Guo , Minjing Dong

Deep learning models for medical image classification tasks are becoming widely implemented in AI-assisted diagnostic tools, aiming to enhance diagnostic accuracy, reduce clinician workloads, and improve patient outcomes. However, their…

Image and Video Processing · Electrical Eng. & Systems 2025-03-31 Amy Rafferty , Rishi Ramaesh , Ajitha Rajan

Diffusion models build a new milestone for image generation yet raising public concerns, for they can be fine-tuned on unauthorized images for customization. Protection based on adversarial attacks rises to encounter this unauthorized…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Boyang Zheng , Chumeng Liang , Xiaoyu Wu

Neural networks are susceptible to small perturbations in the form of 2D rotations and shifts, image crops, and even changes in object colors. Past works attribute these errors to dataset bias, claiming that models fail on these perturbed…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Spandan Madan , Tomotake Sasaki , Hanspeter Pfister , Tzu-Mao Li , Xavier Boix

Personalized diffusion models (PDMs) have become prominent for adapting pre-trained text-to-image models to generate images of specific subjects using minimal training data. However, PDMs are susceptible to minor adversarial perturbations,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Yixin Liu , Ruoxi Chen , Xun Chen , Lichao Sun

Black-box adversarial attack on vision-language pre-trained models is a practical and challenging task, as text and image perturbations need to be considered simultaneously, and only the predicted results are accessible. Research on this…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Han Liu , Jiaqi Li , Zhi Xu , Xiaotong Zhang , Xiaoming Xu , Fenglong Ma , Yuanman Li , Hong Yu

Limited illumination often causes severe physical noise and detail degradation in images. Existing Low-Light Image Enhancement (LLIE) methods frequently treat the enhancement process as a blind black-box mapping, overlooking the physical…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Tongshun Zhang , Pingping Liu , Yuqing Lei , Zixuan Zhong , Qiuzhan Zhou , Zhiyuan Zha

Adversarial attacks are a central tool for probing the robustness of modern vision models, yet most methods optimize perturbations directly in pixel space under $\ell_\infty$ or $\ell_2$ constraints. While effective in white-box settings,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Eitan Shaar , Ariel Shaulov , Yalcin Tur , Gal Chechik , Ravid Shwartz-Ziv

Variational autoencoders (VAEs) are one of the deep generative models that have experienced enormous success over the past decades. However, in practice, they suffer from a problem called posterior collapse, which occurs when the encoder…

Machine Learning · Computer Science 2024-02-06 Yuri Kinoshita , Kenta Oono , Kenji Fukumizu , Yuichi Yoshida , Shin-ichi Maeda

While convolutional neural networks (CNNs) have achieved success in computer vision tasks, it is vulnerable to backdoor attacks. Such attacks could mislead the victim model to make attacker-chosen prediction with a specific trigger pattern.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-07 Yanqi Qiao , Dazhuang Liu , Rui Wang , Kaitai Liang

As the field of image generation rapidly advances, traditional diffusion models and those integrated with multimodal large language models (LLMs) still encounter limitations in interpreting complex prompts and preserving image consistency…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Xinyu Zhang , Mengxue Kang , Fei Wei , Shuang Xu , Yuhe Liu , Lin Ma

Multi-View Diffusion Models (MVDMs) enable remarkable improvements in the field of 3D geometric reconstruction, but the issue regarding intellectual property has received increasing attention due to unauthorized imitation. Recently, some…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Jingwei Sun , Xuchong Zhang , Changfeng Sun , Qicheng Bai , Hongbin Sun

Object detection has been widely used in many safety-critical tasks, such as autonomous driving. However, its vulnerability to adversarial examples has not been sufficiently studied, especially under the practical scenario of black-box…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Siyuan Liang , Baoyuan Wu , Yanbo Fan , Xingxing Wei , Xiaochun Cao

Many existing adversarial attacks generate $L_p$-norm perturbations on image RGB space. Despite some achievements in transferability and attack success rate, the crafted adversarial examples are easily perceived by human eyes. Towards…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Jianqi Chen , Hao Chen , Keyan Chen , Yilan Zhang , Zhengxia Zou , Zhenwei Shi

Light-based adversarial attacks use spatial augmented reality (SAR) techniques to fool image classifiers by altering the physical light condition with a controllable light source, e.g., a projector. Compared with physical attacks that place…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Bingyao Huang , Haibin Ling

Herein, security of deep neural network against adversarial attack is considered. Existing compressive sensing based defence schemes assume that adversarial perturbations are usually on high frequency components, whereas recently it has…

Image and Video Processing · Electrical Eng. & Systems 2021-10-12 Akash Kumar Gupta , Arpan Chattopadhyay , Darpan Kumar Yadav

Posterior collapse in Variational Autoencoders (VAEs) arises when the variational posterior distribution closely matches the prior for a subset of latent variables. This paper presents a simple and intuitive explanation for posterior…

Machine Learning · Computer Science 2019-11-07 James Lucas , George Tucker , Roger Grosse , Mohammad Norouzi

Recent advances in image editing leverage latent diffusion models (LDMs) for versatile, text-prompt-driven edits across diverse tasks. Yet, maintaining pixel-level edge structures-crucial for tasks such as photorealistic style transfer or…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Minsu Gong , Nuri Ryu , Jungseul Ok , Sunghyun Cho