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Deep neural networks for 3D point cloud understanding have achieved remarkable success in object classification and recognition, yet recent work shows that these models remain highly vulnerable to adversarial perturbations. Existing 3D…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Gayathry Chandramana Krishnan Nampoothiry , Raghuram Venkatapuram , Anirban Ghosh , Ayan Dutta

With the growth of 3D sensing technology, deep learning system for 3D point clouds has become increasingly important, especially in applications like autonomous vehicles where safety is a primary concern. However, there are also growing…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Xinke Li , Junchi Lu , Henghui Ding , Changsheng Sun , Joey Tianyi Zhou , Chee Yeow Meng

The widespread adoption of deep learning across various industries has introduced substantial challenges, particularly in terms of model explainability and security. The inherent complexity of deep learning models, while contributing to…

Cryptography and Security · Computer Science 2025-01-08 Kealan Dunnett , Reza Arablouei , Dimity Miller , Volkan Dedeoglu , Raja Jurdak

Point cloud processing as a fundamental task in the field of geomatics and computer vision, has been supporting tasks and applications at different scales from air to ground, including mapping, environmental monitoring, urban/tree structure…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Zhenxin Zhang , Zhihua Xu , Yuwei Cao , Ningli Xu , Shuye Wang , Shen'ao Cui , Zhen Li , Rongjun Qin

Backdoors on federated learning will be diluted by subsequent benign updates. This is reflected in the significant reduction of attack success rate as iterations increase, ultimately failing. We use a new metric to quantify the degree of…

Cryptography and Security · Computer Science 2024-04-30 Tao Liu , Yuhang Zhang , Zhu Feng , Zhiqin Yang , Chen Xu , Dapeng Man , Wu Yang

Self-Supervised Learning (SSL) has emerged as a significant paradigm in representation learning thanks to its ability to learn without extensive labeled data, its strong generalization capabilities, and its potential for privacy…

Cryptography and Security · Computer Science 2026-03-04 Jiayao Wang , Mohammad Maruf Hasan , Yiping Zhang , Xiaoying Lei , Jiale Zhang , Qilin Wu , Junwu Zhu , Dongfang Zhao

3D point cloud analysis has drawn a lot of research attention due to its wide applications. However, collecting massive labelled 3D point cloud data is both time-consuming and labor-intensive. This calls for data-efficient learning methods.…

Computer Vision and Pattern Recognition · Computer Science 2023-01-23 Fayao Liu , Guosheng Lin , Chuan-Sheng Foo , Chaitanya K. Joshi , Jie Lin

Adversarial attacks on point clouds are crucial for assessing and improving the adversarial robustness of 3D deep learning models. Traditional solutions strictly limit point displacement during attacks, making it challenging to balance…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Keke Tang , Weiyao Ke , Weilong Peng , Xiaofei Wang , Ziyong Du , Zhize Wu , Peican Zhu , Zhihong Tian

This work provides the community with a timely comprehensive review of backdoor attacks and countermeasures on deep learning. According to the attacker's capability and affected stage of the machine learning pipeline, the attack surfaces…

Cryptography and Security · Computer Science 2020-08-04 Yansong Gao , Bao Gia Doan , Zhi Zhang , Siqi Ma , Jiliang Zhang , Anmin Fu , Surya Nepal , Hyoungshick Kim

Deep neural networks have made significant advancements in accurately estimating scene flow using point clouds, which is vital for many applications like video analysis, action recognition, and navigation. The robustness of these…

Computer Vision and Pattern Recognition · Computer Science 2024-09-12 Haniyeh Ehsani Oskouie , Mohammad-Shahram Moin , Shohreh Kasaei

Backdoor attacks have become a significant threat to the pre-training and deployment of deep neural networks (DNNs). Although numerous methods for detecting and mitigating backdoor attacks have been proposed, most rely on identifying and…

Machine Learning · Computer Science 2025-10-08 Yige Li , Jiabo He , Hanxun Huang , Jun Sun , Xingjun Ma , Yu-Gang Jiang

Recent deep neural networks (DNNs) have came to rely on vast amounts of training data, providing an opportunity for malicious attackers to exploit and contaminate the data to carry out backdoor attacks. However, existing backdoor attack…

Cryptography and Security · Computer Science 2024-04-22 Ziqiang Li , Hong Sun , Pengfei Xia , Heng Li , Beihao Xia , Yi Wu , Bin Li

3D object detection plays an important role in autonomous driving; however, its vulnerability to backdoor attacks has become evident. By injecting ''triggers'' to poison the training dataset, backdoor attacks manipulate the detector's…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Saket S. Chaturvedi , Lan Zhang , Wenbin Zhang , Pan He , Xiaoyong Yuan

Object detection in three-dimensional (3D) space attracts much interest from academia and industry since it is an essential task in AI-driven applications such as robotics, autonomous driving, and augmented reality. As the basic format of…

Computer Vision and Pattern Recognition · Computer Science 2021-10-15 Shi Qiu , Yunfan Wu , Saeed Anwar , Chongyi Li

As the key technology of augmented reality (AR), 3D recognition and tracking are always vulnerable to adversarial examples, which will cause serious security risks to AR systems. Adversarial examples are beneficial to improve the robustness…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Weiquan Liu , Shijun Zheng , Cheng Wang

Point clouds and meshes are widely used 3D data structures for many computer vision applications. While the meshes represent the surfaces of an object, point cloud represents sampled points from the surface which is also the output of…

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

Recent years have witnessed the great success of deep learning algorithms in the geoscience and remote sensing realm. Nevertheless, the security and robustness of deep learning models deserve special attention when addressing…

Computer Vision and Pattern Recognition · Computer Science 2023-07-14 Nikolaus Dräger , Yonghao Xu , Pedram Ghamisi

Crowd counting is a regression task that estimates the number of people in a scene image, which plays a vital role in a range of safety-critical applications, such as video surveillance, traffic monitoring and flow control. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Yuhua Sun , Tailai Zhang , Xingjun Ma , Pan Zhou , Jian Lou , Zichuan Xu , Xing Di , Yu Cheng , Lichao

Deep speech classification tasks, including keyword spotting and speaker verification, are vital in speech-based human-computer interaction. Recently, the security of these technologies has been revealed to be susceptible to backdoor…

Sound · Computer Science 2025-06-11 Wenhan Yao , Fen Xiao , Xiarun Chen , Jia Liu , YongQiang He , Weiping Wen

Three-dimensional (3D) point cloud analysis has become one of the attractive subjects in realistic imaging and machine visions due to its simplicity, flexibility and powerful capacity of visualization. Actually, the representation of scenes…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Omar Elharrouss , Kawther Hassine , Ayman Zayyan , Zakariyae Chatri , Noor almaadeed , Somaya Al-Maadeed , Khalid Abualsaud
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