Face image generation method based on three-dimensional face deformation model

The invention discloses a face image generation method based on a three-dimensional face deformation model, and belongs to the field of computer vision. The method comprises the following steps: rendering face images under various postures and illumination conditions by using a three-dimensional face deformation model; repairing and rendering holes of the face images at the eyes and the mouth; carrying out face semantic segmentation based on the repaired face image, and intercepting a semantic region below the eyebrows; generating and complementing other semantic features, such as hair, ears and the like, on the intercepted face semantic segmentation map; and generating a vivid human face portrait by taking the complemented face semantic segmentation image as a condition, replacing a corresponding region of the generated portrait with the rendered face image, and performing image fusion. According to the method, a complete face portrait is obtained on the basis of the three-dimensional face deformation model,