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Image Super-Resolution via Dual-State Recurrent Networks

CVPR 2018 · Image generation › Super-resolution · approach: Real-world super-resolution · 242 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
add dual LR and HR recurrent states rather than using a single state (ablation)DSRN · NTIRE SR 2017 track 1, ×2/×3/×4PSNR: 34.66 -> 34.89; 30.80 -> 30.95; 28.80 -> 28.99Helped
add delayed HR-to-LR feedback (ablation)DSRN · NTIRE SR 2017 track 1, ×2/×3/×4PSNR: 34.89 -> 34.96; 30.95 -> 31.12; 28.99 -> 29.03Helped
add parameter sharing across recurrent steps (ablation)DSRN · NTIRE SR 2017 track 1, ×2/×3/×4PSNR: 34.71 -> 34.96; 30.85 -> 31.12; 28.81 -> 29.03Helped
increase unrolling length T (ablation)DSRN · Set5 ×2PSNRHelped
randomly sample unrolling length T during training with stochastic depth (ablation)DSRN · validation accuracyaccuracyNo clear effect
average predictions from all unrolled states rather than use only the last state (ablation)DSRN · image super-resolutionrestoration performanceHelped
use DSRN rather than DRRNimage super-resolution · Set14 ×3PSNR: 29.96 -> 30.26Helped
use DSRN rather than DRRNimage super-resolution · Set5 ×2PSNR: 37.74 -> 37.66Hurt

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