关键词: 人脸三维重建, 形变模型, 明暗纹理恢复, 人脸识别, 主动形状模型

Abstract:

The traditional algorithm of 3D face reconstruction is inefficient and difficult to meet the requirements of practical application. To address this problem, a 3D face fast reconstruction algorithm is proposed. The algorithm based on improved ASM (Active Shape Model) is used to automatically and accurately positioning the feature points, and the improved ASMbased algorithm is used to normalized 3D face database. The sparse 3D morphable model is established to fast reconstruction 3D face from the 2D frontal face; Finally, shading information of 2D image is fully used as a prior knowledge to constrain each vertex's normal located in feature region of 2D face. Experimental results certify that the proposed method obtains faster speed to reconstruction 3D face from the 2D frontal face. keeping a quite high accuracy results and having a high recognition rate.

Key words: 3D face reconstruction, morphable model, shape from shading(SFS), face recognition, active shape model(ASM)