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Deep neural networks (DNNs) have revolutionized the field of computer vision like object detection with their unparalleled performance. However, existing research has shown that DNNs are vulnerable to adversarial attacks. In the physical…

Cryptography and Security · Computer Science 2024-06-26 Zijin Lin , Yue Zhao , Kai Chen , Jinwen He

Defending against physical adversarial attacks is a rapidly growing topic in deep learning and computer vision. Prominent forms of physical adversarial attacks, such as overlaid adversarial patches and objects, share similarities with…

Cryptography and Security · Computer Science 2020-11-13 Perry Deng , Mohammad Saidur Rahman , Matthew Wright

Adversarial patch attacks mislead neural networks by injecting adversarial pixels within a local region. Patch attacks can be highly effective in a variety of tasks and physically realizable via attachment (e.g. a sticker) to the real-world…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Ke Xu , Yao Xiao , Zhaoheng Zheng , Kaijie Cai , Ram Nevatia

Deep learning image classification is vulnerable to adversarial attack, even if the attacker changes just a small patch of the image. We propose a defense against patch attacks based on partially occluding the image around each candidate…

Machine Learning · Computer Science 2020-04-30 Michael McCoyd , Won Park , Steven Chen , Neil Shah , Ryan Roggenkemper , Minjune Hwang , Jason Xinyu Liu , David Wagner

Moving deep learning models from the laboratory setting to the open world entails preparing them to handle unforeseen conditions. In several applications the occurrence of novel classes during deployment poses a significant threat, thus it…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Paolo Rabino , Antonio Alliegro , Francesco Cappio Borlino , Tatiana Tommasi

Blind spots or outright deceit can bedevil and deceive machine learning models. Unidentified objects such as digital "stickers," also known as adversarial patches, can fool facial recognition systems, surveillance systems and self-driving…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 Zijian Zhu , Hang Su , Chang Liu , Wenzhao Xiang , Shibao Zheng

In this paper, we demonstrate a physical adversarial patch attack against object detectors, notably the YOLOv3 detector. Unlike previous work on physical object detection attacks, which required the patch to overlap with the objects being…

Computer Vision and Pattern Recognition · Computer Science 2019-07-01 Mark Lee , Zico Kolter

The existence of real-world adversarial examples (commonly in the form of patches) poses a serious threat for the use of deep learning models in safety-critical computer vision tasks such as visual perception in autonomous driving. This…

Computer Vision and Pattern Recognition · Computer Science 2025-09-10 Giulio Rossolini , Federico Nesti , Gianluca D'Amico , Saasha Nair , Alessandro Biondi , Giorgio Buttazzo

Out-of-distribution (OOD) detection ensures safe and reliable model deployment. Contemporary OOD algorithms using geometry projection can detect OOD or adversarial samples from clean in-distribution (ID) samples. However, this setting…

Machine Learning · Computer Science 2025-08-26 Jeng-Lin Li , Ming-Ching Chang , Wei-Chao Chen

In this paper, we propose a new key-based defense focusing on both efficiency and robustness. Although the previous key-based defense seems effective in defending against adversarial examples, carefully designed adaptive attacks can bypass…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 AprilPyone MaungMaung , Isao Echizen , Hitoshi Kiya

The widespread adoption of computer vision systems has underscored their susceptibility to adversarial attacks, particularly adversarial patch attacks on object detectors. This study evaluates defense mechanisms for the YOLOv5 model against…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Roie Kazoom , Raz Birman , Ofer Hadar

Adversarial patches present significant challenges to the robustness of deep learning models, making the development of effective defenses become critical for real-world applications. This paper introduces DIFFender, a novel DIFfusion-based…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Xingxing Wei , Caixin Kang , Yinpeng Dong , Zhengyi Wang , Shouwei Ruan , Yubo Chen , Hang Su

Neural architectures based on attention such as vision transformers are revolutionizing image recognition. Their main benefit is that attention allows reasoning about all parts of a scene jointly. In this paper, we show how the global…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Giulio Lovisotto , Nicole Finnie , Mauricio Munoz , Chaithanya Kumar Mummadi , Jan Hendrik Metzen

Early object detection (OD) is a crucial task for the safety of many dynamic systems. Current OD algorithms have limited success for small objects at a long distance. To improve the accuracy and efficiency of such a task, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Tianyi Zhang , Kishore Kasichainula , Yaoxin Zhuo , Baoxin Li , Jae-Sun Seo , Yu Cao

Autonomous vehicles (AVs) increasingly use DNN-based object detection models in vision-based perception. Correct detection and classification of obstacles is critical to ensure safe, trustworthy driving decisions. Adversarial patches aim to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Jaden Mu

Recent years have seen an increasing interest in physical adversarial attacks, which aim to craft deployable patterns for deceiving deep neural networks, especially for person detectors. However, the adversarial patterns of existing…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Jikang Cheng , Ying Zhang , Zhongyuan Wang , Zou Qin , Chen Li

Many physical adversarial patch generation methods are widely proposed to protect personal privacy from malicious monitoring using object detectors. However, they usually fail to generate satisfactory patch images in terms of both…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Shuo-Yen Lin , Ernie Chu , Che-Hsien Lin , Jun-Cheng Chen , Jia-Ching Wang

Object detection models, which are widely used in various domains (such as retail), have been shown to be vulnerable to adversarial attacks. Existing methods for detecting adversarial attacks on object detectors have had difficulty…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Omer Hofman , Amit Giloni , Yarin Hayun , Ikuya Morikawa , Toshiya Shimizu , Yuval Elovici , Asaf Shabtai

Deep learning drives major advances in autonomous driving (AD), where object detectors are central to perception. However, adversarial attacks pose significant threats to the reliability and safety of these systems, with physical…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Zihui Zhu , Ziqi Zhou , Yichen Wang , Lulu Xue , Minghui Li , Shengshan Hu

State-of-the-art convolutional neural network models for object detection and image classification are vulnerable to physically realizable adversarial perturbations, such as patch attacks. Existing defenses have focused, implicitly or…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Mauricio Byrd Victorica , György Dán , Henrik Sandberg