Smooth and Texturing Blending Framework for Marginal Area of Facial Prosthesis

The purpose of this paper is to describe how to model the smooth and texturing blending surfaces for marginal area of facial prosthesis adjoined to surrounding tissues based on the characteristic of areal scan data. First in the geometry modelling stage, the implicit function was used to segment 3D models into parts and re-triangulate the resulting gap and after several iterations of the umbrella operator, the smooth transition between facial prosthesis and surrounding tissues can be achieved. Then in the texture mapping stage, a seamless textured surface can be produced quickly based on the method of solving the Poisson equation for the colour field that best fits the colour gradients with a grid search structure. Clinical application showed that the resulted facial prosthesis can fit the patient’s appearance well.

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