Aiming at the difficulty of obtaining high-quality facial models with continuous dimensional using traditional 3D model construction methods,a facial model interpolation construction technology based on conformal geometry was proposed using mul-tiple facial models with different expressions as data sources.The quasi-conformal mapping was used to reduce the dimensionality of the facial model and convert it into a 2D model.An interpolation algorithm was proposed to linearly interpolate the shape fea-tures of multiple models to define geometric constraints for constructing transition models.An adaptive model selection algorithm was proposed to adaptively select the basic model among multiple facial models.The quasi-conformal iteration was guided by geo-metric constraints to change the two-dimensional plane shape of the basic model.The changed 2D facial model was transformed into 3D space,and a 3D facial model with transitional expressions was constructed.Experimental results show that the effective-ness and efficiency of the algorithm are greatly improved.
关键词
三维面部模型/建模/插值/降维/几何约束/共形几何/准共形迭代
Key words
3D facial model/model construction/interpolation/dimension reduction/geometry constraint/conformal geometry/quasi-conformal iteration
维普
万方数据