Bilinear Interpolation Upsampling

Conv 3x3

TAB (Global)

DblockEgaBlock (Local Fusion)

Conv 3x3

+

Reconstruction Upsampling Block (Conv+PS x2)

Conv 3x3

+

I_SR

(a) DblockEgaBlock (Local Fusion)

DBlock (Dilated Local)

EGA++ (Edge Enhance)

C

Conv 1x1

(b) TAB (Global Token Aggregation Block)

LayerNorm

IRCA (Attention)

IASA (Attention)

ConvFFN (MLP)

(c) DBlock (Dilated Local)

Conv 1x1

Dilated Conv (d=1)

Dilated Conv (d=2)

Dilated Conv (d=3)

Dilated Conv (d=4)

SimpleGate

SCA (Channel Attn)

Conv 1x1

(d) EGA++ (Edge Enhance)

MultiScale Gaussian

Schar Edge

Norm & Act

ECA (Channel Attn)

Conv 1x1