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Investigating Tradeoffs in Real-World Video Super-Resolution

CVPR 2022 · Video › Video segmentation and tracking · approach: Real-world video super-resolution · 120 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add image pre-cleaning before temporal propagationBasicVSR for real-world VSR · VideoLQNIQEHelped
Remove the image cleaning loss (ablation)RealBasicVSR · Real-world VSRoutput qualityHurt
Replace the image-based cleaning module with a recurrent network (ablation)RealBasicVSR · Real-world VSRoutput qualityHurt
Use dynamic refinement instead of fixed cleaning iterations (ablation)RealBasicVSR cleaning module · VideoLQNIQEHelped
Use stochastic degradation instead of the conventional training schemeRealBasicVSR training · Stochastic degradation comparisonNIQE: 4.7191 -> 4.6836Helped
Use stochastic degradation instead of the conventional training schemeRealBasicVSR training · Stochastic degradation comparisonTime per iteration: ~2.5s -> ~1.5sHelped
Flip the sequence without adding temporally varying degradations (ablation)RealBasicVSR training · Stochastic degradation comparisonNIQE: 4.7191 -> 4.6926Helped
Train with longer sequences rather than larger batches (ablation)RealBasicVSR · VideoLQvisual qualityHelped
Add video compression to the training degradations (ablation)RealBasicVSR · Real-world VSRperformanceHelped

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