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This work investigates efficient score-based black-box adversarial attacks with a high Attack Success Rate (ASR) and good generalizability. We design a novel attack method based on a Disentangled Feature space, called DifAttack, which…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Liu Jun , Zhou Jiantao , Zeng Jiandian , Jinyu Tian

This work investigates efficient score-based black-box adversarial attacks that achieve a high Attack Success Rate (ASR) and good generalization ability. We propose a novel attack framework, termed DifAttack++, which operates in a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Jun Liu , Jiantao Zhou , Jiandian Zeng , Jinyu Tian , Isao Echizen

Generative deep learning algorithms have progressed to a point where it is difficult to tell the difference between what is real and what is fake. In 2018, it was discovered how easy it is to use this technology for unethical and malicious…

Computer Vision and Pattern Recognition · Computer Science 2020-09-23 Yisroel Mirsky , Wenke Lee

The boom of Generative AI brings opportunities entangled with risks and concerns. Existing literature emphasizes the generalization capability of deepfake detection on unseen generators, significantly promoting the detector's ability to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yongqi Yang , Zhihao Qian , Ye Zhu , Olga Russakovsky , Yu Wu

Adversarial attacks have the potential to mislead deep neural network classifiers by introducing slight perturbations. Developing algorithms that can mitigate the effects of these attacks is crucial for ensuring the safe use of artificial…

Machine Learning · Computer Science 2023-10-31 Boya Zhang , Weijian Luo , Zhihua Zhang

It has been recognized that the data generated by the denoising diffusion probabilistic model (DDPM) improves adversarial training. After two years of rapid development in diffusion models, a question naturally arises: can better diffusion…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Zekai Wang , Tianyu Pang , Chao Du , Min Lin , Weiwei Liu , Shuicheng Yan

Creating fake images and videos such as "Deepfake" has become much easier these days due to the advancement in Generative Adversarial Networks (GANs). Moreover, recent research such as the few-shot learning can create highly realistic…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Hyeonseong Jeon , Youngoh Bang , Simon S. Woo

Face anti-spoofing (FAS) and adversarial detection (FAD) have been regarded as critical technologies to ensure the safety of face recognition systems. However, due to limited practicality, complex deployment, and the additional…

Computer Vision and Pattern Recognition · Computer Science 2024-08-28 Jiawei Chen , Xiao Yang , Yinpeng Dong , Hang Su , Zhaoxia Yin

Denoising diffusion probabilistic models (DDPMs) are a recent family of generative models that achieve state-of-the-art results. In order to obtain class-conditional generation, it was suggested to guide the diffusion process by gradients…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Bahjat Kawar , Roy Ganz , Michael Elad

With the development of diffusion-based customization methods like DreamBooth, individuals now have access to train the models that can generate their personalized images. Despite the convenience, malicious users have misused these…

Computer Vision and Pattern Recognition · Computer Science 2024-07-29 Yisu Liu , Jinyang An , Wanqian Zhang , Dayan Wu , Jingzi Gu , Zheng Lin , Weiping Wang

Despite their unprecedented performance in various domains, utilization of Deep Neural Networks (DNNs) in safety-critical environments is severely limited in the presence of even small adversarial perturbations. The present work develops a…

Machine Learning · Computer Science 2020-10-19 Fatemeh Sheikholeslami , Swayambhoo Jain , Georgios B. Giannakis

The rapid progression of generative AI (GenAI) technologies has heightened concerns regarding the misuse of AI-generated imagery. To address this issue, robust detection methods have emerged as particularly compelling, especially in…

Graphics · Computer Science 2025-04-07 Hongfei Cai , Chi Liu , Sheng Shen , Youyang Qu , Peng Gui

The rapid advancement of generative artificial intelligence has enabled the creation of highly realistic fake facial images, posing serious threats to personal privacy and the integrity of online information. Existing deepfake detection…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Huanhuan Yuan , Yang Ping , Zhengqin Xu , Junyi Cao , Shuai Jia , Chao Ma

DeepFakes are raising significant social concerns. Although various DeepFake detectors have been developed as forensic countermeasures, these detectors are still vulnerable to attacks. Recently, a few attacks, principally adversarial…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Chi Liu , Huajie Chen , Tianqing Zhu , Jun Zhang , Wanlei Zhou

Adversarial attacks from generative models often produce low-quality images and require substantial computational resources. Diffusion models, though capable of high-quality generation, typically need hundreds of sampling steps for…

Computer Vision and Pattern Recognition · Computer Science 2025-08-22 Susim Roy , Anubhooti Jain , Mayank Vatsa , Richa Singh

Deep Learning based AI systems have shown great promise in various domains such as vision, audio, autonomous systems (vehicles, drones), etc. Recent research on neural networks has shown the susceptibility of deep networks to adversarial…

Machine Learning · Computer Science 2019-11-25 Sambuddha Saha , Aashish Kumar , Pratyush Sahay , George Jose , Srinivas Kruthiventi , Harikrishna Muralidhara

The recent advances in diffusion models (DMs) have revolutionized the generation of realistic and complex images. However, these models also introduce potential safety hazards, such as producing harmful content and infringing data…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Yimeng Zhang , Jinghan Jia , Xin Chen , Aochuan Chen , Yihua Zhang , Jiancheng Liu , Ke Ding , Sijia Liu

Known for their impressive performance in generative modeling, diffusion models are attractive candidates for density-based anomaly detection. This paper investigates different variations of diffusion modeling for unsupervised and…

Machine Learning · Computer Science 2026-05-11 Victor Livernoche , Vineet Jain , Yashar Hezaveh , Siamak Ravanbakhsh

With wider application of deep neural networks (DNNs) in various algorithms and frameworks, security threats have become one of the concerns. Adversarial attacks disturb DNN-based image classifiers, in which attackers can intentionally add…

Computer Vision and Pattern Recognition · Computer Science 2022-06-30 Jinyi Wang , Zhaoyang Lyu , Dahua Lin , Bo Dai , Hongfei Fu

Adversarial attacks can mislead neural network classifiers. The defense against adversarial attacks is important for AI safety. Adversarial purification is a family of approaches that defend adversarial attacks with suitable pre-processing.…

Machine Learning · Computer Science 2023-10-31 Boya Zhang , Weijian Luo , Zhihua Zhang