In the field of 3D imaging and computer vision, "Ring Artifacts" are common errors that researchers use to fix.

Which of these interpretations were you looking for, or were you referring to something else entirely?

A specific "Deep" rendering style or texture applied to a 3D character like Tamaki.

Researchers often use 3D Convolutional Neural Networks (CNNs), like the U-Net architecture, to "paint over" or remove these ring-shaped defects in 3D scans.

I am answering for the first interpretation, as "deep paper" most commonly refers to in technical contexts. Technical Context: 3D Ring Artifacts & Deep Learning