Graph signal processing: Overview, challenges, and applications

A Ortega, P Frossard, J Kovačević… - Proceedings of the …, 2018 - ieeexplore.ieee.org
Research in graph signal processing (GSP) aims to develop tools for processing data
defined on irregular graph domains. In this paper, we first provide an overview of core ideas …

Learning graphs from data: A signal representation perspective

X Dong, D Thanou, M Rabbat… - IEEE Signal Processing …, 2019 - ieeexplore.ieee.org
The construction of a meaningful graph topology plays a crucial role in the effective
representation, processing, analysis, and visualization of structured data. When a natural …

Rgcnn: Regularized graph cnn for point cloud segmentation

G Te, W Hu, A Zheng, Z Guo - Proceedings of the 26th ACM international …, 2018 - dl.acm.org
Point cloud, an efficient 3D object representation, has become popular with the development
of depth sensing and 3D laser scanning techniques. It has attracted attention in various …

Graph spectral image processing

G Cheung, E Magli, Y Tanaka… - Proceedings of the IEEE, 2018 - ieeexplore.ieee.org
Recent advent of graph signal processing (GSP) has spurred intensive studies of signals
that live naturally on irregular data kernels described by graphs (eg, social networks …

Optimized skeleton-based action recognition via sparsified graph regression

X Gao, W Hu, J Tang, J Liu, Z Guo - Proceedings of the 27th ACM …, 2019 - dl.acm.org
With the prevalence of accessible depth sensors, dynamic human body skeletons have
attracted much attention as a robust modality for action recognition. Previous methods model …

Deep graph-convolutional image denoising

D Valsesia, G Fracastoro, E Magli - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Non-local self-similarity is well-known to be an effective prior for the image denoising
problem. However, little work has been done to incorporate it in convolutional neural …

Graph Signal Processing: History, development, impact, and outlook

G Leus, AG Marques, JMF Moura… - IEEE Signal …, 2023 - ieeexplore.ieee.org
Signal processing (SP) excels at analyzing, processing, and inferring information defined
over regular (first continuous, later discrete) domains such as time or space. Indeed, the last …

Laplacian matrix learning for point cloud attribute compression with ternary search-based adaptive block partition

C Peng, W Gao - Proceedings of the 32nd ACM International …, 2024 - dl.acm.org
Graph Fourier Transform (GFT) has demonstrated significant effectiveness in point cloud
attribute compression task. However, existing graph modeling methods are based on the …

Imperceptible transfer attack and defense on 3d point cloud classification

D Liu, W Hu - IEEE transactions on pattern analysis and …, 2022 - ieeexplore.ieee.org
Although many efforts have been made into attack and defense on the 2D image domain in
recent years, few methods explore the vulnerability of 3D models. Existing 3D attackers …

Feature graph learning for 3D point cloud denoising

W Hu, X Gao, G Cheung, Z Guo - IEEE Transactions on Signal …, 2020 - ieeexplore.ieee.org
Identifying an appropriate underlying graph kernel that reflects pairwise similarities is critical
in many recent graph spectral signal restoration schemes, including image denoising …