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Regularity-Constrained Fast Sine Transforms
In contrast, the proposed regularity-constrained fast sine transform (R-FST) is obtained by just appending a regularity constraint matrix as a postprocessing of the original DST.
Directional Analytic Discrete Cosine Frames
Block frames called directional analytic discrete cosine frames (DADCFs) are proposed for sparse image representation.
Epigraphical Relaxation for Minimizing Layered Mixed Norms
Mixed norm regularization methods play a central role in signal reconstruction and processing, where their optimization relies on the fact that the proximity operators of the mixed norms can be computed efficiently.
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