arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.03957eess.SPcs.LG
收藏

图上的信号采样:从理论到应用

Sampling Signals on Graphs: From Theory to Applications

Tokyo University of Agriculture and Technology(东京农工大学);PRESTO, Japan Science and Technology Agency(日本科学技术振兴机构PRESTO);The Weizmann Institute of Science(魏茨曼科学研究所);University of Southern California(南加州大学);York University(约克大学)

Yuichi Tanaka, Yonina C. Eldar, Antonio Ortega, Gene Cheung

摘要:

图上采样信号的研究,其目标是建立一个模拟的采样标准信号在时间和空间域,近年来引起了相当大的关注。图上的采样除了增加图信号处理(GSP)的增长理论外,还具有各种有前途的应用。本文综述了图上采样的理论和应用研究进展。虽然图形信号采样中使用的大多数方法被设计为与标准信号采样中使用的方法并行,但图形信号的采样理论与Shannon-Nyquist和移位不变采样理论有很大不同。这在一定程度上是由于几个重要属性(例如移位不变性和带限性)的定义在GSP系统中不同。在整个审查中,我们讨论了标准和图形信号采样之间的相似性和差异,并强调开放的问题和挑战。

英文摘要:

The study of sampling signals on graphs, with the goal of building an analog of sampling for standard signals in the time and spatial domains, has attracted considerable attention recently. Beyond adding to the growing theory on graph signal processing (GSP), sampling on graphs has various promising applications. In this article, we review current progress on sampling over graphs focusing on theory and potential applications. Although most methodologies used in graph signal sampling are designed to parallel those used in sampling for standard signals, sampling theory for graph signals significantly differs from the theory of Shannon--Nyquist and shift-invariant sampling. This is due in part to the fact that the definitions of several important properties, such as shift invariance and bandlimitedness, are different in GSP systems. Throughout this review, we discuss similarities and differences between standard and graph signal sampling and highlight open problems and challenges.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑