The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Robust Single Image Super-Resolution via Deep Networks With Sparse Prior
Abstract
Single image super-resolution (SR) is an ill-posed problem, which tries to recover a high-resolution image from its low-resolution observation. To regularize the solution of the problem, previous methods have focused on designing good priors for natural images, such as sparse representation, or directly learning the priors from a large data set with models, such as deep neural networks. In this paper, we argue that domain expertise from the conventional sparse coding model can be combined with the key ingredients of deep learning to achieve further improved results. We demonstrate that a sparse coding model particularly designed for SR can be incarnated as a neural network with the merit of end-to-end optimization over training data. The network has a cascaded structure, which boosts the SR performance for both fixed and incremental scaling factors. The proposed training and testing schemes can be extended for robust handling of images with additional degradation, such as noise and blurring. A subjective assessment is conducted and analyzed in order to thoroughly evaluate various SR techniques. Our proposed model is tested on a wide range of images, and it significantly outperforms the existing state-of-the-art methods for various scaling factors both quantitatively and perceptually.
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Self-citationSuper‐resolution musculoskeletal MRI using deep learning
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On Low-Resolution Face Recognition in the Wild: Comparisons and New Techniques
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Metadata
- Authors
- Liu, D., Wang, Z., Wen, B., Yang, J., Han, W., & Huang, T. S.
- Venue
- IEEE Transactions on Image Processing
- Published
- 2016-07
- Volume
- 25
- Issue
- 7
- Pages
- 3194-3207
- ISSN
- 1057-7149 (ISSN-L)
- 1941-0042
- OpenAlex
- W2345557152
- Cited by
- 266
- References
- 9
- FWCI
- 32.86
- Type
- journal article
- Language
- en
- Open access
- closed
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