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| Content Provider | IET Digital Library |
|---|---|
| Author | Zhang, Xin Liu, Qian Li, Xuemei Zhou, Yuanfeng Zhang, Caiming |
| Abstract | Image super-resolution (SR) for a single low-resolution image is an important and challenging task in image processing. In this study, the authors propose a novel non-local feature back-projection method for image SR, which can effectively reduce jaggy and ringing artefacts common, in general, iterative back-projection (IBP) method. In their method, the objective high-resolution (HR) image is obtained by projecting reconstructed errors back to HR image iteratively. To optimise the initial HR image and constrain anisotropic errors propagation during IBP process, an efficient non-local feature interpolation algorithm is designed. Specially, edge information is used as constraints to make the interpolation surface preserve better shape. Furthermore, as post-processing, non-local similarities are utilised to remove noise and irregularities induced by errors propagation. Experimental results show that their method achieves better performance than state-of-the-art methods in terms of both quantitative metrics and visual qualities. |
| Starting Page | 398 |
| Ending Page | 408 |
| Page Count | 11 |
| ISSN | 17519659 |
| Volume Number | 10 |
| e-ISSN | 17519667 |
| Issue Number | Issue 5, May (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-ipr/10/5 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2015.0467 |
| Journal | IET Image Processing |
| Publisher Date | 2016-05-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Anisotropic Error Propagation Computer Vision And Image Processing Technique Edge Information Error Reconstruction IBP Method IBP Process Image Reconstruction Image Resolution Image Superresolution Interpolation Interpolation And Function Approximation Interpolation Surface Iterative Back-projection Method Iterative Method Jaggy Artefact Low-resolution Image Noise Removal Nonlocal Feature Back-projection Method Nonlocal Feature Interpolation Algorithm Nonlocal Similarities Numerical Analysis Objective High-resolution Image Objective HR Image Optical, Image And Video Signal Processing Ringing Artefact Visual Quality |
| Content Type | Text |
| Resource Type | Article |
| Subject | Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software |
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