Abstract
An improved single image super resolution based on patch-wise sparse recovery is proposed in this paper. K-SVD is adopted to train a coupled dictionary. Besides, adaptive selection is proposed among dictionaries with different patch size. Simulation results show that the proposed approach provides good subjective quality and up to 0.4 dB PSNR improvement with significant time reduction.
| Original language | English |
|---|---|
| Title of host publication | 2014 19th International Conference on Digital Signal Processing, DSP 2014 |
| Publisher | IEEE |
| Pages | 449-453 |
| Number of pages | 5 |
| Volume | 2014-January |
| ISBN (Electronic) | 9781479946129 |
| DOIs | |
| Publication status | Published - 1 Jan 2014 |
| Event | 2014 19th International Conference on Digital Signal Processing, DSP 2014 - Hong Kong, Hong Kong Duration: 20 Aug 2014 → 23 Aug 2014 |
Conference
| Conference | 2014 19th International Conference on Digital Signal Processing, DSP 2014 |
|---|---|
| Country/Territory | Hong Kong |
| City | Hong Kong |
| Period | 20/08/14 → 23/08/14 |
Keywords
- Adpative dictionary selection
- Dictionary learning
- K-svd
- Sparse representation
- Super resolution
ASJC Scopus subject areas
- Signal Processing
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