Some questions about ASH

[zhoutianyang2002]

Hi!
Thank you for your excellent work!
I am a newbie of 3D Vision. May I ask some questions about the paper?

1. In Sec. 3.2, whether the $w_{(·),i}$ in formula(4) are learnable parameters? In other words, how could we get the $w_{(·),i}$?
2. In Sec. 3.3, I am not sure how could we get $$\boldsymbol{\mu}{uv, i}^{\prime \prime}$$ from the texture texels of the pose-deformed template mesh $$\boldsymbol{\mu}{uv, i}$$. Could you offer more information about this operation? (Besides, I think there is a typo, the pose-deformed template mesh is $$V_f$$, not $$\boldsymbol{\mu}_{uv, i}$$). To be honest, I can not understand operations of the warmup stage.
   Sorry to bother you, thank you very much!