影视特效

面向影视特效的虚拟演员真实感三维人脸建模研究

Study on Realistic 3D Face Modeling for Creating Virtual Actor in Film Visual Effects Field

目前，三维技术在影视特效、游戏、教育和科研等领域已经得到广泛应用。

Nowadays , the three dimensional technology has been widely applied to such areas as Movies special-effects , Games , Education , Scientific-research and so on .

本文首先构造一个顶点数目、顶点分布、拓扑结构、二维参数化纹理坐标都非常适合影视特效中使用的三维人脸基本网格；

First we construct a generic face mesh which vertex number , vertex distribution , mesh topology and 2D parameterization are very suitable for the film visual effect field ;

中国的特效市场还是有很大的上升空间的。虽然现在人们刚刚意识到影视特效的价值和可发展性，但是发展越来越迅速。

The visual effects here in china still has a lot of room for growth , its just breaking into the possibilities of VFX , but the development is increasing .

影视特效体现了视觉技术和艺术相结合的新发展，已成为当代电影的一种有效的表现手法，是创意实现不可或缺的技术保证。

Video special effect shows the combination of visual technology and art new development . It has become an effective expression technique of modern film and been an essential technology to ensure the creative implementation .

三维人脸建模近30年来一直是计算机视觉和计算机图形学领域的研究热点，其在影视特效、人机交互、电子游戏、通讯等方面都有着广泛的应用。

3D face modeling has been a hotspot in computer vision and computer graphics for the last 30 years . It has broad applications in film visual effect , human-machine interaction , computer game , communication , etc.

雪景是人们广为熟知的一种自然景象，在影视特效、电视广告、电子游戏中有着不可或缺的地位，尤其是在雪灾的预防中，雪景的模拟有着积极的意义。

Snow is a natural scene that people widely known , has an indispensable position in special effects in film , TV commercials and video games , especially in the prevention of snow , the snow simulation has a positive meaning .

如今，在电影行业，借助电脑数字技术营造的各种影视特效，不断地制造出一部部优秀的电影；在电子游戏行业，同样是借助电脑图形渲染技术创作出无数的经典游戏。

Nowadays , in movie industry , by using digital techniques to create all kinds of visual special effects , constantly produce many excellent movies ; In video game industry , is also using computing graphics rendering techniques to create innumerable classic games .

计算机图形学领域研究的热点与难点之一就是真实感典型自然现象的模拟，它在影视特效、三维动画、电脑游戏与虚拟现实等领域应用广泛。

The simulation of realistic natural phenomena has been a hotspot and one of the most difficult tasks in Computer Graphics . It has been widely applied in many domains such as special effects of movie , 3D computer animations , computer games and virtual reality .

嘴唇动画作为人脸动画中最重要的部分之一，可以应用在影视特效，动画制作，游戏娱乐以及视频会议等诸多领域，具有很大的应用价值和商业价值。

Lip animation , as one of the most important part of facial animation , can be applied to many fields , such as film effect , cartoons , games and video conference . Because of its applications and great commercial value , it is worth to study .

在数字动画、影视特效制作等应用中，粒子和流体是动画特效中常用的两种方法，也一直是计算机数字媒体艺术应用领域的热点，最终目的都是为了追求真实感的图形与动画。

Digital animation , visual effects production applications , particles and fluid animation effects are frequently used in two ways , it has been the art computer digital media applications in the field of hot spots , and the ultimate goal is to pursue realistic graphics and animation .

流体模拟作为影视动漫特效的重要元素，具有重要意义。

Fluid simulation , as one of the film elements , play an increasingly important role .

数字图像抠图技术是指把指定的前景从已有的自然图像中分离出来的一种技术。它最早被运用于影视业的特效制作中，为影视业赢得了巨大的商业价值。

Digital image matting is to extract the specified foreground object from a natural image . It is first used in special effect production of film industry , and creates a lot of commercial value for the industry .

如今的影视动画行业与高科技技术融合已经达到一个至高的境界，而这其中又与影视特效技术息息相关。

Today , film and animation industry with high-tech technology integration has reached a supreme realm , which is closely linked with the film and television special effects technology .

研究了数字影视特技效果“时间冻结”的拍摄方法与实现技术，建立了一套全数字化的“时间冻结”影视特效拍摄系统。

The shooting method and implementation of the " frozen time " digital video special effect are studied , and a new full-digital shooting system of " frozen time " special effect is established .