Scalable M-Channel Critically Sampled Filter Banks for Graph Signals.

IEEE Transactions on Signal Processing(2019)

引用 25|浏览14
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摘要
We investigate a scalable M-channel critically sampled filter bank for graph signals, where each of the M filters is supported on a different subband of the graph Laplacian spectrum. For analysis, the graph signal is filtered on each subband and downsampled on a corresponding set of vertices. However, the classical synthesis filters are replaced with interpolation operators. For small graphs, we u...
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关键词
Laplace equations,Interpolation,Fourier transforms,Eigenvalues and eigenfunctions,Spectral analysis,Dictionaries
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