【摘要】 随着数字娱乐产业的发展,由照片生成卡通人脸的技术将取得广泛应用.此前的方法主要集中在平面卡通化的领域,风格较为单一.对于三维人脸,尽管形变模型方法可以由照片合成各种属性的三维人脸,但它计算量较大,不适用于实时应用场合.本文提出了一种基于稀疏形变模型的三维卡通人脸生成方法,提高了计算速度,且只需要单幅正面人脸照片.首先由稀疏形变模型拟合照片人脸获得特定的稀疏人脸模型;然后将一个一般人脸模型变形到特定人脸并合成纹理;最后对三维人脸进行卡通化.实验结果证明本文方法能够快速自动地合成生动的三维卡通人脸.更多还原

【Abstract】 Facial caricaturing from images could be widely used in digital entertainment and emotional communication.Previous methods mainly focused on 2D caricature generation.Although the Morphable Model can synthesize 3D faces with various attributes,it is not fit for the real-time application as the high computational cost.We proposed an improved 3D caricaturing method based on Sparse Morphable Model.It is much faster and only requires a single image.Firstly a sparse face model is reconstructed from the image by Sparse Morphable Model.Then a General Face Model is warped and texture is synthesized.Finally the 3D model is caricatured.Experimental results demonstrate that this method can generate impressive 3D caricature from a single frontal image fast and automatically.更多还原