Automatic Generation of 3D Statistical Shape Models of the Knee Bones

We are working on generating an accurate Statistical Map of the Knee bones and Cartilages for use as 'a-priori' knowledge in segmentation algorithms. The approach we are presenting to automatically generate 3D Statistical Shape Models is based on the Point Distribution Model op- timisation framework of Davies et al (8). Our scheme uses a conformal parameterization with an Eigenspace objective function which is then optimized using a Genetic Algorithm. The current technique is illustrated by generating an Opti- mized 3D Statistical Shape Model of the Patella bone and Non-Optimized Model of the Tibia bone in the knee.