Fix noisy images faster and better by combining a nonlocal algorithm with a lightweight CNN with Guo
Fix noisy images faster and better by combining a nonlocal algorithm with a lightweight CNN with Guo
Fast, nonlocal and neural: a lightweight high quality solution to image denoising
arXiv paper abstract https://arxiv.org/abs/2403.03488
arXiv PDF paper https://arxiv.org/pdf/2403.03488.pdf
With ... convolutional neural networks (CNNs), the traditional ... denoising algorithms are now outperformed.
However, CNNs ... are computationally demanding ... CNNs often over-smooth regular textures
... propose a solution to both issues by combining a nonlocal algorithm with a lightweight residual CNN.
... apply this framework to two GPU implementations of classic nonlocal algorithms (NLM and BM3D) and observe a substantial gain in both cases, performing better than the state-of-the-art with low computational requirements.
... solution is between 10 and 20 times faster than CNNs with equivalent performance and attains higher PSNR.
... method shows a notable gain on images containing complex textures like the ones of the MIT Moire dataset.
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