Dae-Eun Hyun Bert Jüttler Myung-Soo Kim Minimizing the Distortion of Affine Spline Motions. 128-144 2002 64 Graphical Models 2 http://dx.doi.org/10.1006/gmod.2002.0569 db/journals/cvgip/cvgip64.html#HyunJK02