A spatial-domain solver that randomly subsamples sparse-code coordinates each iteration reports 2x to 6x speedups over Fourier-domain convolutional sparse coding baselines with comparable quality, and scales to over-complete dictionary learning from thousands of images.
: High order tensor formulation for convolutional sparse coding
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Stochastic Convolutional Sparse Coding
A spatial-domain solver that randomly subsamples sparse-code coordinates each iteration reports 2x to 6x speedups over Fourier-domain convolutional sparse coding baselines with comparable quality, and scales to over-complete dictionary learning from thousands of images.