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The 3D point cloud (3DPC) has significantly evolved and benefited from the advance of deep learning (DL). However, the latter faces various issues, including the lack of data or annotated data, the existence of a significant gap between…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Shahab Saquib Sohail , Yassine Himeur , Hamza Kheddar , Abbes Amira , Fodil Fadli , Shadi Atalla , Abigail Copiaco , Wathiq Mansoor

This paper addresses the problem of generating dense point clouds from given sparse point clouds to model the underlying geometric structures of objects/scenes. To tackle this challenging issue, we propose a novel end-to-end learning-based…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Yue Qian , Junhui Hou , Sam Kwong , Ying He

Continual learning (CL) empowers AI systems to progressively acquire knowledge from non-stationary data streams. However, catastrophic forgetting remains a critical challenge. In this work, we identify attention drift in Vision Transformers…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Yue Lu , Xiangyu Zhou , Shizhou Zhang , Yinghui Xing , Guoqiang Liang , Wencong Zhang

Engineering problems that apply machine learning often involve computationally intensive methods but rely on limited datasets. As engineering data evolves with new designs and constraints, models must incorporate new knowledge over time.…

Machine Learning · Computer Science 2025-04-18 Kaira M. Samuel , Faez Ahmed

Continual learning (CL) is an approach to address catastrophic forgetting, which refers to forgetting previously learned knowledge by neural networks when trained on new tasks or data distributions. The adversarial robustness has decomposed…

Machine Learning · Computer Science 2023-07-04 Hikmat Khan , Nidhal C. Bouaynaya , Ghulam Rasool

Point cloud filtering and normal estimation are two fundamental research problems in the 3D field. Existing methods usually perform normal estimation and filtering separately and often show sensitivity to noise and/or inability to preserve…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Dasith de Silva Edirimuni , Xuequan Lu , Gang Li , Antonio Robles-Kelly

In this paper, we introduce a novel framework for memory-efficient and privacy-preserving continual learning in 3D object classification. Unlike conventional memory-based approaches in continual learning that require storing numerous…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Hossein Resani , Behrooz Nasihatkon

The introduction of cheap RGB-D cameras, stereo cameras, and LIDAR devices has given the computer vision community 3D information that conventional RGB cameras cannot provide. This data is often stored as a point cloud. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2018-10-22 Aleksandr Savchenkov , Andrew Davis , Xuan Zhao

Deep neural networks are known to be vulnerable to adversarial examples which are carefully crafted instances to cause the models to make wrong predictions. While adversarial examples for 2D images and CNNs have been extensively studied,…

Cryptography and Security · Computer Science 2019-07-15 Chong Xiang , Charles R. Qi , Bo Li

Recent development of 3D sensors allows the acquisition of extremely dense 3D point clouds of large-scale scenes. The main challenge of processing such large point clouds remains in the size of the data, which induce expensive computational…

Computer Vision and Pattern Recognition · Computer Science 2021-09-24 Thomas Richard , Florent Dupont , Guillaume Lavoue

The paper presents a simple and effective learning-based method for computing a discriminative 3D point cloud descriptor for place recognition purposes. Recent state-of-the-art methods have relatively complex architectures such as…

Computer Vision and Pattern Recognition · Computer Science 2022-04-11 Jacek Komorowski

The ever-increasing 3D application makes the point cloud compression unprecedentedly important and needed. In this paper, we propose a patch-based compression process using deep learning, focusing on the lossy point cloud geometry…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Kang You , Pan Gao

Catastrophic forgetting is a significant challenge in the field of machine learning, particularly in neural networks. When a neural network learns to perform well on a new task, it often forgets its previously acquired knowledge or…

Machine Learning · Computer Science 2023-12-04 Nuri Korhan , Ceren Öner

Recent research has shown that mmWave radar sensing is effective for object detection in low visibility environments, which makes it an ideal technique in autonomous navigation systems such as autonomous vehicles. However, due to the…

Image and Video Processing · Electrical Eng. & Systems 2021-09-21 Yue Sun , Honggang Zhang , Zhuoming Huang , Benyuan Liu

The growing size of point clouds enlarges consumptions of storage, transmission, and computation of 3D scenes. Raw data is redundant, noisy, and non-uniform. Therefore, simplifying point clouds for achieving compact, clean, and uniform…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Yuanqi Li , Jianwei Guo , Xinran Yang , Shun Liu , Jie Guo , Xiaopeng Zhang , Yanwen Guo

Deep learning is increasingly being used to perform machine vision tasks such as classification, object detection, and segmentation on 3D point cloud data. However, deep learning inference is computationally expensive. The limited…

Image and Video Processing · Electrical Eng. & Systems 2023-08-14 Mateen Ulhaq , Ivan V. Bajić

Continual learning -- the ability to acquire knowledge incrementally without forgetting previous skills -- is fundamental to natural intelligence. While the human brain excels at this, artificial neural networks struggle with "catastrophic…

Machine Learning · Computer Science 2025-09-16 Aoi Otani

Deep neural networks have established themselves as the state-of-the-art methodology in almost all computer vision tasks to date. But their application to processing data lying on non-Euclidean domains is still a very active area of…

Computer Vision and Pattern Recognition · Computer Science 2019-05-21 Chaitanya Kaul , Nick Pears , Suresh Manandhar

In recent years, there has been a significant increase in the utilization of deep learning methods, particularly convolutional neural networks (CNNs), which have emerged as the dominant approach in various domains that involve structured…

Machine Learning · Computer Science 2024-04-09 Chester Luo , Kevin Lai

Unlike humans, who are capable of continual learning over their lifetimes, artificial neural networks have long been known to suffer from a phenomenon known as catastrophic forgetting, whereby new learning can lead to abrupt erasure of…

Artificial Intelligence · Computer Science 2018-06-20 Christos Kaplanis , Murray Shanahan , Claudia Clopath