What's in a frequency: new tools for graph Fourier Transform visualization Article Swipe
Related Concepts
Bandlimiting
Computer science
Visualization
Fourier transform
Graph
Wavelet
Vertex (graph theory)
Graph drawing
Signal processing
Wavelet transform
Algorithm
Discrete-time signal
Theoretical computer science
Mathematics
Artificial intelligence
Digital signal processing
Mathematical analysis
Signal transfer function
Analog signal
Computer hardware
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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