Standardization of 3D head-face model based on MRI

Based on MRI technology, a series of 2D images of human head was obtained. Their boundary coordinates were extracted respectively, and a hierarchical 3D head parameterized model was constructed by fitting contours of all sections with Fourier series. Several feature sections were defined according to main features of human face. Average processing was taken to several samples based on the principle of facial feature matching. Accordingly, the 3D standard head-face model was constructed, which could reflect the comprehensive features of specific population. As examples, round-high standard headform was calculated and constructed through 558 samples as the design basis for head-face equipment.