  It can be easy and even fun to sketch humans in different poses. In contrast,
creating those same poses on a 3D graphics "mannequin" is comparatively
tedious. Yet 3D body poses are necessary for various downstream applications.
We seek to preserve the convenience of 2D sketching while giving users of
different skill levels the flexibility to accurately and more quickly
pose\slash refine a 3D mannequin.
  At the core of the interactive system, we propose a machine-learning model
for inferring the 3D pose of a CG mannequin from sketches of humans drawn in a
cylinder-person style. Training such a model is challenging because of artist
variability, a lack of sketch training data with corresponding ground truth 3D
poses, and the high dimensionality of human pose-space. Our unique approach to
synthesizing vector graphics training data underpins our integrated
ML-and-kinematics system. We validate the system by tightly coupling it with a
user interface, and by performing a user study, in addition to quantitative
comparisons.
