用于人脸表情图像与动画合成的图像变形方法

基于传统图像变形的人脸表情合成方法,在对由闭口的表情图像到开口露齿的表情图像进行中间状态的表情合成时会失效。为克服这一不足,提出了一种更适用于人脸表情图像与动画合成的图像变形方法。该方法引入了掩蔽图像的概念,并提出了对掩蔽图像的变形方法,修正了传统图像变形方法的变形公式。实验结果显示,该方法能自然、逼真地合成出由闭口的表情图像到开口露齿的表情图像的中间状态表情图像。

Image Morphing Method for Facial Expression Image and Animation Synthesis

Facial expression synthesizing method based on traditional image morphing will not take effect when synthesizing a facial expression image from an expression image with mouth closed and an expression image with mouth opened and teeth showed.In order to overcome this shortage,a novel image morphing method is proposed for image and animation synthesis of facial expression.In this method,the concept of mask image is brought in and the morphing method of mask image is presented,and then the formula of traditional image morphing is revised.The idea of this method is easy to understand and the method steps are simple.This method can effectively produce morphed images.Experimental results show that this method can naturally and livelily synthesize facial expression images from an expression image with mouth closed and an expression image with mouth opened and teeth showed.At this point,this method outperforms other existing facial expression synthesis methods based on traditional image morphing.