基于人脸画像的伪照片合成及修正

Abstract

A method was proposed to transform a face sketch into a pseudophoto and to amend the synthesized pseudophoto.It consists of three procedures for the face pseudophoto:synthesizing,enhancement and local amendment.Firstly,the initial face pseudophoto was synthesized by Local Eigentransformation Technique(LET).Then,the edge features and textures of the face sketch were enhanced to improve the visual effect of synthesized pseudophoto.Finally,the local synthesis error of the face pseudophoto was amended by moving least squares algorithm.The experiment was performed on the CUHK face sketch database and the transformation was compared with real photos.Result shows that the method can effectively synthesize and amend the pseudophoto and can guarantee the similarity with sufficient amendment.As the proposed method only involves the deformation of a local region,it is independent on the neural network to predict the target location in control points.So,it has lowered the computing complexity.