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Conference Papers Year : 2019

What's in a frequency: new tools for graph Fourier Transform visualization

Abstract

Recent progress in graph signal processing (GSP) has addressed a number of problems, including sampling and filtering. Proposed methods have focused on generic graphs and defined signals with certain characteristics, e.g., bandlimited signals, based on the graph Fourier transform (GFT). However, the effect of GFT properties (e.g., vertex localization) on the behavior of such methods is not as well understood. In this paper, we propose novel GFT visualization tools and provide some examples to illustrate certain GFT properties and their impact on sampling or wavelet transforms.
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Dates and versions

hal-02074862 , version 1 (21-03-2019)

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Benjamin Girault, Antonio Ortega. What's in a frequency: new tools for graph Fourier Transform visualization. 2019 Information Theory and Applications Workshop, Feb 2019, San Diego, California, United States. ⟨hal-02074862⟩
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