Table 1. Parameters comparison between multi-path and single-path upscale modules. Note, these are parameters of the sub-pixel convolutional layers only.

pscaling factor	Multi-path upsample module par.	Single-path upsample module par.
×2	147.5K	589.8K
×3	331.8K
×4	294.9K
Total	774.1K	589.8K