Research On Human Face Image Morphing Animation Technology

Human face image morphing animation technology is an important branch of the computer animation research. Facial animation technology has been applied in film and television, video games, remote communication, and virtual environment, which brings great convenience and fun in the exchange of people, cultural and entertainment. Therefore, this field of research attracts more and more attention. It involves human physiology, psychology, art, computer graphics,vision and so on. In this field, many researchers devote their effort to bring us better and more expressive human face animation technology.This article discusses morphing animation technology of 2D human face image.This article generalizes some common human face feature extraction method, introduces systematically a variety of image morphing technology and facial expression animation technology, summarizes the basic principle of image morphing, research actuality and existent problem.In the facial image feature extraction, through the comparison of application range of different extraction methods, in allusion to the configuration character of human face images and need of local animation warping actualized used in the article experiment,this article use the integral projection of extraction methods and get the feature area. In the respect of morphing between original images and target images, the article use image morphing method based on feature line after arithmetic improved. Firstly find the corresponding feature lines and establish a mapping between two images from feature points from original images and target images. Then interpolate original images and target images by a certain percentage, and this will generate a gradual morphing facial image. However, as this method before arithmetic improved costs a large amount of calculation, longer waiting time of running, the speed of method after arithmetic improved is quickly. In the respect of part facial morphing, the paper presents a morphing method based on pixel displacement, which is, through some mapping the image, pixels displacement change and generate a new image. This article takes mouth and eyes which changes the most obviously on the face as examples, and research and analyze the thought of morphing algorithm. This algorithm creat good continuity, and can preferences produce manifold morphing effort.This paper explains facial feature extraction and image morphingthe facial image morphing which are two core areas of the human face image morphing animation technology, and discusses the implementation process of related technologies.The studied method and experiment date are provided with a practical value.