The invention provides a three-dimensional
human head and
face model reconstruction method based on a random face image. The method includes; establishing a human face bilinear model and an optimization
algorithm by using a three-dimensional human face
database; gradually separating the spatial attitude of the human face, camera parameters and identity features and expression features for determining the geometrical shape of the human face through the two-dimensional feature points, and adjusting the generated three-dimensional human
face model through Laplace deformation correction to obtaina low-resolution three-dimensional human
face model; finally, calculating the face depth, and achieving high-precision three-dimensional
model reconstruction of the target face through registration ofthe high-resolution template model and the
point cloud model, so as to enable the reconstructed face model to conform to the shape of the target face. According to the method, while face
distortion details are eliminated, original main details of the face are kept, the reconstruction effect is more accurate, especially in face detail reconstruction, face detail
distortion and expression influences are effectively reduced, and the display effect of the generated face model is more real.