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Efficient and Explicit Modelling of Image Hierarchies for Image Restoration

CVPR 2023 · Image generation › Image restoration · approach: Efficient restoration architectures · 292 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use GRL-B instead of RestormerSingle-image motion deblurring · GoProPSNR: 32.92 -> 33.93Helped
Use GRL-B instead of RestormerSingle-image motion deblurring · HIDEPSNR: 31.22 -> 31.65Helped
Use GRL-B instead of RestormerColor denoising · Urban100, σ=50PSNR: 30.02 -> 30.46Helped
Use dot product instead of Euclidean distance for similarity comparison (ablation)Anchored stripe self-attention · Color denoising, BSD68, σ=15PSNR: 35.02 -> 35.10Helped
Use dot product instead of Euclidean distance for similarity comparison (ablation)Anchored stripe self-attention · Image SR, BSD100, ×4PSNR: 27.67 -> 27.70Helped
Use average pooling followed by linear projection for anchors rather than patch merging (ablation)Anchored stripe self-attention · Set5PSNR: 34.98 -> 35.03Helped
Use average pooling followed by linear projection for anchors rather than max pooling followed by linear projection (ablation)Anchored stripe self-attention · Set5PSNR: 35.02 -> 35.03Helped
Replace average pooling plus linear projection with depthwise convolution for anchor projection (ablation)Anchored stripe self-attention · Set5PSNR: 35.03 -> 35.03No clear effect
Replace average pooling plus linear projection with convolution for anchor projection (ablation)Anchored stripe self-attention · Set5PSNR: 35.03 -> 35.03No clear effect

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