2.5D Cartoon Models (my choice)
Sentence
We show how 2D vector  art drawings of a cartoon from different views can be used to generate a  novel structure, the 2.5D cartoon model, which can be used to simulate  3D rotations and generate plausible renderings of the cartoon from any  view. (3rd line in the Abstract)
Problem
Generating a 3D model of a cartoon is time-consuming and many stylistic  elements in a 2D drawing cannot be reproduced in a 3D model.
Key Idea
Combination of translating strokes’ positions based on inferred 3D positions while interpolating the strokes’ shapes in 2D
What the paper lets you do
The tool built allows rendering of 3D  characters in any angle given top, side and front view 2D drawings of  the character; it also allows the artist to fine-tune Z-ordering and  visibility of strokes in different views to get the desired result.
What it could be used for
Faster animation development;
More old school cartoonish style 3D characters, rather than NPR-models in movies and games!
Other materials
Project web page, video & slides