面向三维立体动画制作的视差可视化调节方法设计与实现  

A Visual Disparity Adjustment Method for Stereoscopic 3D Animation Production

作　　者：孙靓[1] 卢大玮 刘亮[1] 马华东[1] Sun Jing;Lu Dawei;Liu Liang;Ma Huadong(Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia, Beijing University of Posts and Telecommunications, Beijing 100876)

机构地区：[1]北京邮电大学智能通信软件与多媒体北京市重点实验室,北京100876

出　　处：《计算机辅助设计与图形学学报》2017年第7期1245-1255,共11页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家科技支撑计划(2012BAH39F07);科技北京百名领军人才培养工程(ljrc201502)

摘　　要：近年来,随着立体显示技术的快速发展,立体三维动画在各个领域的应用需求越来越大.然而在立体三维动画制作中,立体效果的调节过程难以控制,容易产生立体感不足或视觉不适等问题.为此,提出一种面向立体动画制作前期的立体效果调整方法.首先分析场景深度、立体图像的视差以及图像立体效果三者之间的关系,生成图像的视差变化梯度图;其次分析视差与观看距离的关系,推导最佳观看效果的视差范围,并在视差变化梯度图上标记出引起观看不适的部分;最后得出立体参数与视差的关系曲线,通过分析虚拟立体摄像机参数变化对视差的影响,辅助动画制作者准确调整立体效果.将文中方法以Maya插件的形式实现,并使用商业动画电影《兔侠传奇2:青黎传说中》的镜头素材进行实验,结果表明,与传统方法相比,该方法准确性好、自动化程度高,能有效地提高立体动画的制作效率.With the rapid development of stereoscopic display technology in recent years,the requirements instereoscopic3D(S3D)animation for many fields are increasing gradually.However,in the procedure of S3Danimation production the stereo effect is difficult to control so that the perceived depth is not obvious or visual fatiguehappens.We proposed a stereo effect adjustment method for prophase of S3D animation production.First,we generated the disparity gradient maps according to the relationships among scene depth,stereo image disparityand stereo effect.Then,through analyzing the relationship between disparity and view distance,we derived thedisparity range for the best visual effect and further marked the regions for visual fatigue on the disparity gradientmap.Moreover,we obtained the curves between the stereo parameters and the disparity and analyzed the influenceof the stereo parameters on the disparity,which can assist the animation producer to accurately adjust thestereo effect.We also built a Maya plug-in and used the typical scene cuts of a commercial animation film“Legendof A Rabbit:The Martial of Fire”to verify our method.Experimental results show that our method with highaccuracy and automation level could significantly improve the efficiency of the S3D animation production.

关 键 词：三维立体动画 立体效果 视差调节 视觉舒适度 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]