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Backdoor attacks pose a critical threat to deep learning, especially in safety-sensitive 3D domains such as autonomous driving and robotics. While potent, existing attacks on 3D point clouds are predominantly limited to one-to-one…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Dongmei Shan , Wei Lian , Chongxia Wang

With the proposition of neural networks for point clouds, deep learning has started to shine in the field of 3D object recognition while researchers have shown an increased interest to investigate the reliability of point cloud networks by…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Hanxiao Tan , Helena Kotthaus

Point cloud is point sets defined in 3D metric space. Point cloud has become one of the most significant data format for 3D representation. Its gaining increased popularity as a result of increased availability of acquisition devices, such…

Computer Vision and Pattern Recognition · Computer Science 2020-01-20 Saifullahi Aminu Bello , Shangshu Yu , Cheng Wang

Deep neural networks are prone to adversarial examples that maliciously alter the network's outcome. Due to the increasing popularity of 3D sensors in safety-critical systems and the vast deployment of deep learning models for 3D point…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Itai Lang , Uriel Kotlicki , Shai Avidan

The importance of training robust neural network grows as 3D data is increasingly utilized in deep learning for vision tasks in robotics, drone control, and autonomous driving. One commonly used 3D data type is 3D point clouds, which…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Daniel Liu , Ronald Yu , Hao Su

Adversarial attacks pose serious challenges for deep neural network (DNN)-based analysis of various input signals. In the case of three-dimensional point clouds, methods have been developed to identify points that play a key role in network…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Hanieh Naderi , Chinthaka Dinesh , Ivan V. Bajic , Shohreh Kasaei

Point clouds are extensively employed in a variety of real-world applications such as robotics, autonomous driving and augmented reality. Despite the recent success of point cloud neural networks, especially for safety-critical tasks, it is…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Mert Gulsen , Batuhan Cengiz , Yusuf H. Sahin , Gozde Unal

Recent studies that incorporate geometric features and transformers into 3D point cloud feature learning have significantly improved the performance of 3D deep-learning models. However, their robustness against adversarial attacks has not…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Xuelong Dai , Bin Xiao

Backdoor attack intends to embed hidden backdoor into deep neural networks (DNNs), so that the attacked models perform well on benign samples, whereas their predictions will be maliciously changed if the hidden backdoor is activated by…

Cryptography and Security · Computer Science 2022-02-17 Yiming Li , Yong Jiang , Zhifeng Li , Shu-Tao Xia

Point cloud stands as the most widely adopted format for representing 3D shapes and scenes due to its simplicity and geometric fidelity. However, its inherent unordered and irregular nature, exacerbated by sensor noise and occlusions,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Minhas Kamal , Hiranya Garbha Kumar , Balakrishnan Prabhakaran

Federated learning is a promising approach for training machine learning models while preserving data privacy. However, its distributed nature makes it vulnerable to backdoor attacks, particularly in NLP tasks, where related research…

Machine Learning · Computer Science 2025-07-31 Minyeong Choe , Cheolhee Park , Changho Seo , Hyunil Kim

Data-poisoning backdoor attacks are serious security threats to machine learning models, where an adversary can manipulate the training dataset to inject backdoors into models. In this paper, we focus on in-training backdoor defense, aiming…

Cryptography and Security · Computer Science 2024-10-16 Shaokui Wei , Hongyuan Zha , Baoyuan Wu

This paper presents Poisoning MorphNet, the first backdoor attack method on point clouds. Conventional adversarial attack takes place in the inference stage, often fooling a model by perturbing samples. In contrast, backdoor attack aims to…

Computer Vision and Pattern Recognition · Computer Science 2021-05-12 Guiyu Tian , Wenhao Jiang , Wei Liu , Yadong Mu

Backdoor attack has emerged as a novel and concerning threat to AI security. These attacks involve the training of Deep Neural Network (DNN) on datasets that contain hidden trigger patterns. Although the poisoned model behaves normally on…

Cryptography and Security · Computer Science 2024-03-06 Huasong Zhou , Xiaowei Xu , Xiaodong Wang , Leon Bevan Bullock

Backdoor attacks pose a serious threat to deep learning models by allowing adversaries to implant hidden behaviors that remain dormant on clean inputs but are maliciously triggered at inference. Existing backdoor attack methods typically…

Cryptography and Security · Computer Science 2025-11-18 Lijie Hu , Junchi Liao , Weimin Lyu , Shaopeng Fu , Tianhao Huang , Shu Yang , Guimin Hu , Di Wang

Deep Neural Networks (DNNs) for 3D point cloud recognition are vulnerable to adversarial examples, threatening their practical deployment. Despite the many research endeavors have been made to tackle this issue in recent years, the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Qiufan Ji , Lin Wang , Cong Shi , Shengshan Hu , Yingying Chen , Lichao Sun

Backdoor attacks have emerged as a critical security threat against deep neural networks in recent years. The majority of existing backdoor attacks focus on targeted backdoor attacks, where trigger is strongly associated to specific…

Cryptography and Security · Computer Science 2025-06-24 Yinghao Wu , Liyan Zhang

Adversarial attack methods for 3D point cloud classification reveal the vulnerabilities of point cloud recognition models. This vulnerability could lead to safety risks in critical applications that use deep learning models, such as…

Cryptography and Security · Computer Science 2025-07-30 Ruiyang Zhao , Bingbing Zhu , Chuxuan Tong , Xiaoyi Zhou , Xi Zheng

Backdoor attack is a new AI security risk that has emerged in recent years. Drawing on the previous research of adversarial attack, we argue that the backdoor attack has the potential to tap into the model learning process and improve model…

Cryptography and Security · Computer Science 2022-02-23 Shangxi Wu , Qiuyang He , Yi Zhang , Jitao Sang

Point cloud data now are popular data representations in a number of three-dimensional (3D) vision research realms. However, due to the limited performance of sensors and sensing noise, the raw data usually suffer from sparsity, noise, and…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Siwen Quan , Junhao Yu , Ziming Nie , Muze Wang , Sijia Feng , Pei An , Jiaqi Yang