Convolutional Dictionary Learning: A Comparative Review and New Algorithms
Journal Article
·
· IEEE Transactions on Computational Imaging
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Convolutional sparse representations are a form of sparse representation with a dictionary that has a structure that is equivalent to convolution with a set of linear filters. Additionally, while effective algorithms have recently been developed for the convolutional sparse coding problem, the corresponding dictionary learning problem is substantially more challenging. Furthermore, although a number of different approaches have been proposed, the absence of thorough comparisons between them makes it difficult to determine which of them represents the current state of the art. The present work both addresses this deficiency and proposes some new approaches that outperform existing ones in certain contexts. A thorough set of performance comparisons indicates a very wide range of performance differences among the existing and proposed methods, and clearly identifies those that are the most effective.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Laboratory Directed Research and Development (LDRD) Program
- Grant/Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1711366
- Report Number(s):
- LA-UR--17-27612
- Journal Information:
- IEEE Transactions on Computational Imaging, Journal Name: IEEE Transactions on Computational Imaging Journal Issue: 3 Vol. 4; ISSN 2573-0436
- Publisher:
- IEEECopyright Statement
- Country of Publication:
- United States
- Language:
- English
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