Motion Doodles - A Sketch-based Interface for Character Animation
Author(s): Matthew Thorne.
Master Thesis: University of British Columbia, September,
2003.
[BibTeX] 
Abstract:
This thesis presents a novel sketch-based interface for animating an articulated
human character quickly and with a limited amount of training. The character
is animated by sketching a sequence of simple arcs, loops and lines which are
interpreted as an appropriate sequence of steps, jump, flips and other motions.
The motion synthesis extracts key features from the sketch such as height, distance
and timing information allowing a user to create a variety of styles of
motion. The details of the sketch interpretation process are discussed for both
a 2D and 3D version of the system.