3D facial deformable using cubic spline and Thin Plate Spline

Orthognathic surgery is a routine procedure for the correction of facial deformity based on measured values of skeletal anomaly and asymmetry. Until recently, the measurements have been made from two-dimensional (2D) radiographs and any prediction of the patient´s post-operative appearance could only be carried out using two-dimensional software. However, recent advances in virtual reality and three-dimensional (3D) medical imaging technology now make three-dimensional predictions possible. In this paper we present an approach to facial surgery treatment simulation based on the following steps: Initially the patient has an optical surface scan of the facial features. Next was to apply a 3D cubic spline technique to user- or template-specified control points before fitting a mesh on the soft tissue area. The clinician can now move the mesh to the direction that the user requires. Finally a 3D Thin Plate Spine is applied to simulate the 3D facial deformable.