Lightweight Image Super-Resolution Based on Re-Parameterization and Self-Calibrated Convolution

Table 1

Ablation studies of the effects of IMDB, FDB, RepDB, and SCDB with ×4 scale factor on test sets.

Method	Scale	Params (K)	Set5 PSNR/SSIM	Set14 PSNR/SSIM	BSD100 PSNR/SSIM	Urban100 PSNR/SSIM
6IMDB	×4	715	32.15/0.8940	28.56/0.7808	27.54/0.7348	25.97/0.7826
6FDB + CCA	×4	737	32.16/0.8943	28.58/0.7814	27.55/0.7348	26.02/0.7831
6FDB + CAM	×4	742	32.17/0.8946	28.59/0.7816	27.55/0.7355	26.05/0.7842
6RepDB	×4	742	32.20/0.8948	28.61/0.7818	27.56/0.7356	26.09/0.7862
6SCDB	×4	801	32.23/0.8951	28.61/0.7819	27.57/0.7359	26.11/0.7863
3RepDB+3SCDB	×4	772	32.22/0.8953	28.61/0.7820	27.58/0.7363	26.17/0.7881