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When Spatially-Variant Filtering Meets Low-Rank Regularization: Exploiting Non-Local Similarity for Single Image Interpolation
- Citation Author(s):
- Submitted by:
- Lantao Yu
- Last updated:
- 25 September 2019 - 11:39am
- Document Type:
- Presentation Slides
- Document Year:
- 2019
- Event:
- Presenters:
- Lantao Yu
- Paper Code:
- 3833
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This paper combines spatially-variant filtering and non-local low-rank regularization (NLR) to exploit non-local similarity in natural images in addressing the problem of image interpolation. We propose to build a carefully designed spatially-variant, non-local filtering scheme to generate a reliable estimate of the interpolated image and utilize NLR to refine the estimation. Our work uses a simple, parallelizable algorithm without the need to solve complicated optimization problems. Experiment results demonstrate that our algorithm significantly improves PSNR and SSIM of the interpolated images compared with state-of-the-art algorithms.