THREE-DIMENSIONAL FACE IMAGE RECONSTRUCTION METHOD AND APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM

摘要

A three-dimensional face image reconstruction method, a three-dimensional face image reconstruction apparatus, a three-dimensional face image reconstruction hardware apparatus, and a computer-readable storage medium. The three-dimensional face image reconstruction method comprises: acquiring a real two-dimensional face key point and a predicted two-dimensional face key point (S1); iteratively optimizing expression coefficients by means of solving a first loss function composed of the real two-dimensional face key point, the predicted two-dimensional face key point and a preset additional regular constraint term, wherein the additional regular constraint term is used for constraining the expression coefficients, such that the expression coefficients characterize real states of a face (S2); and reconstructing a three-dimensional face image according to the expression coefficients (S3). Expression coefficients are iteratively optimized by means of solving a first loss function composed of a real two-dimensional face key point, a predicted two-dimensional face key point and a preset additional regular constraint term for constraining the expression coefficients, such that the expression coefficients can represent real states of a human face, thereby being capable of optimizing three-dimensional face image reconstruction technology and obtaining the real states of the face.