2 3 Texture mapping method and apparatus for 2D facial image to 3D facial model

摘要

The present invention discloses a method and apparatus for texture mapping of a two-dimensional face image to a three-dimensional face model. A three-dimensional face model of a two-dimensional face image according to the present invention, which transforms a predefined three-dimensional face model with respect to an input two-dimensional face image, and texture maps the two-dimensional face image into a modified three-dimensional face model. The texture mapping method comprises the steps of: (a) treating predefined control points reflecting feature points of a face in the three-dimensional face model for each component of the face as an object, and adjusting them to be close to the two-dimensional face image on a per-object basis; b) calculating different displacement vectors within the object for vertices included in objects other than control points to obtain a modified three-dimensional face model and (c) two-dimensional using coordinates of the modified three-dimensional face model. Generating a texture in a three-dimensional coordinate system of the face image.