Natural Image Matting via Guided Contextual Attention

Understand

Over the last few years, deep learning based approaches have achieved outstanding improvements in natural image matting.

• Many of these methods can generate visually plausible alpha estimations, but typically yield blurry structures or textures in the semitransparent area.
• This is due to the local ambiguity of transparent objects.
• One possible solution is to leverage the far-surrounding information to estimate the local opacity.