CT image based 3D orbital prosthesis model construction method

摘要

To solve the clinical problem of constructing an aesthetic and appropriate orbital prosthesis model, two methods based on volume cutting and surface cutting respectively are proposed in this paper. Using spline interpolation, region growth, triangular patch calculation, cylinder cutting and other techniques, we obtain the 3D orbital prosthesis model with a proper size and smooth edges. Besides, a visual feedback mechanism is added in the process of prosthesis construction to make the prosthesis model fit the defect part better. The results show that the CT image based 3D orbital prosthesis model construction method in this paper significantly improves the clinical acceptability and effectiveness.