Traditional character animation has superiority in conveying stylized
information about characters and events, but producing it requires
a lot of labor and time. Computer generated animation improves
greatly on efficiency, but is poor in expressing stylized motion.
In this paper, we propose a sketching-based animation synthesis
system. The system contains an interface for the user to draw
the sketches or load sketch images. Then the system extracts 2D
pose from the input strokes and maps the 2D pose to 3D pose that
is in a motion capture database. During the mapping, a series of
matching 3D pose candidates are found. The user can select the
most satisfying candidate as the 3D key pose for the later animation
synthesis. The system synthesizes an animation based on the
3D key poses by finding a path in the motion capture database and
generating transition motions if needed.