Clarification: Refine Width

[mexicantexan]

For setting the refine width, how did you land on self_refine_width1 = 30 and self_refine_width2 = 15 for the configuration? Was it a lot of trial and error with these values working well as an average, or is there another reason behind the 30 and 15? Did you observe any peculiar behavior with the network when these values were increased/decreased?

[pgt4861]

Hi, I'm sorry for the late reply.
Some parts of our codes and training settings are originated from MG-Matting (as I wrote down on the readme.md). Specifically, the config of refine width is based on the setting from the previous work.
And, ablation for this setting has not been tested. So, i'd appreciate it if you share any interesting finding!
Again, thank you for your interest