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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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Contributor : Benjamin Girault Connect in order to contact the contributor
Submitted on : Thursday, March 21, 2019 - 5:18:42 AM
Last modification on : Wednesday, April 17, 2019 - 2:31:40 AM
Long-term archiving on: : Saturday, June 22, 2019 - 12:47:14 PM


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  • HAL Id : hal-02074862, version 1
  • ARXIV : 1903.08827


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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