How to deal with transparent objects

[CoderZhangYx]

Hi, thanks for your nice work!
I was wondering how can MAM perform well on matting transparent objects, as shown in Fig. 4 in your paper. Did you implement any special properties?
Honestly, i've been doing similary trimap-free matte works, and found that my model fail at any transparent objects (by taking similar model arch like refine from concated feat, map, image).
Any advice would be helpful, thanks!