Spectral Graph Wavelets and Filter Banks With Low Approximation Error.
Akie SakiyamaKana WatanabeYuichi TanakaPublished in: IEEE Trans. Signal Inf. Process. over Networks (2016)
Keyphrases
- filter bank
- approximation error
- spectral graph
- perfect reconstruction
- multiscale
- reconstruction error
- multiresolution
- wavelet packet
- signal processing
- subband
- lifting scheme
- wavelet filters
- compactly supported
- wavelet bases
- wavelet transform
- image compression
- theoretic framework
- graph partitioning
- image processing
- image segmentation
- superpixels
- estimation error
- natural images
- frequency domain
- computer vision
- computationally efficient
- image representation
- unsupervised learning
- higher order
- building blocks
- generative model