计算机工程与应用 ›› 2016, Vol. 52 ›› Issue (9): 170-176.

• 图形图像处理 • 上一篇    下一篇

周期性动态对白框的傅里叶模型及渲染技术

律睿慜1,陈  伟1,孟  磊1,周  頔1,李静远2   

  1. 1.江南大学 数字媒体学院,江苏 无锡 214122
    2.成都航空职业技术学院,成都 610100
  • 出版日期:2016-05-01 发布日期:2016-05-16

Fourier model and rendering techniques of periodic dynamic speech balloons

LYU Ruimin1, CHEN Wei1, MENG Lei1, ZHOU Di1, LI Jingyuan2   

  1. 1.School of Digital Media, Jiangnan University, Wuxi, Jiangsu 214122, China
    2.Chengdu Aeronautic Polytechnic, Chengdu 610100, China
  • Online:2016-05-01 Published:2016-05-16

摘要: 动态对白框是动漫、游戏及社交应用中新出现的一种气氛烘托手法,但相关的研究还非常匮乏。为此提出了周期性动态对白框的数学模型,并研究了它的呈现及编辑技术。将动态对白框表达为固定基线和动态曲线的叠加,其动态曲线的每个控制点都表达为一组傅里叶系数,并通过傅里叶合成的方式实现周期性的动态效果。提出了多种对白框的渲染风格,以实现多种实时呈现效果。提出了主题模板和笔式编辑工具,为用户提供直观的方式以编辑、创作包含大量参数的周期性动态对白框模型。实现了周期性动态对白框原型创作系统,并构造出多种动态对白框特效,验证了该技术可实现新颖的、多样化的气氛烘托效果。

关键词: 对白框, 傅里叶级数, 参数曲线, 动画, 卡通

Abstract: This paper proposes a new periodic dynamic speech balloons generation method, which provides a new feature to show mood expressions in comics, games and some interactive applications. It presents a mathematic model, which represents a dynamic speech-balloon as the sum of a fixed base curve and a dynamic curve. Every control point of the dynamic curve is represented by a set of Fourier coefficients, and hence the periodic dynamics can be generated by Fourier synthesis. Then, it shows various rendering styles for dynamic speech-balloons rendering in real-time. In addition, it introduces a brush tool with various dynamic templates to intuitively create and edit the mathematic models of dynamic speech balloons. Finally, it presents a prototype system and experimental results demonstrate the effectiveness of the proposed method.

Key words: speech balloons, Fourier series, parametric curves, animation, cartoon