Juha Koikkalainen Tuomas Tölli Kirsi Lauerma Kari Antila E. Mattila Mikko Lilja Jyrki Lötjönen Methods of Artificial Enlargement of the Training Set for Statistical Shape Models. 1643-1654 2008 27 IEEE Trans. Med. Imaging 11 http://dx.doi.org/10.1109/TMI.2008.929106 db/journals/tmi/tmi27.html#KoikkalainenTLAMLL08