周期性动态图像的傅里叶表达、渲染及应用  

Fourier representation, rendering techniques and applications of periodic dynamic images

作　　者：律睿慜[1] 陈伟[1] 孟磊[1] 陈丽芳[1] 吴昊天[1] 李静远[2] 

机构地区：[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计算机工程系,成都610100

出　　处：《计算机应用》2015年第8期2280-2284,共5页journal of Computer Applications

基　　金：江苏省自然科学基金资助项目(BK20130157);中央高校基本科研业务费专项资金资助项目(JSURP1048);国家级大学生创新创业训练计划项目(201410295058)

摘　　要：为了生成新颖的艺术效果,提出了周期性动态图像模型,其每个像素都是一个时域周期函数。首先,提出了周期性动态图像的傅里叶表达,具体是将图像中每个像素对应的周期函数以一系列傅里叶系数来表达,并在实时运行中以傅里叶级数求和的结果作为每个像素的动态输出。其次,提出了三种渲染风格,使得图像的动态输出以不同的方式渲染显示。这三种渲染风格演示了三种应用,包括动态数字绘画、动态图像扭曲特效和动态对白气泡。最后,构建了原型绘画系统,并进行了有关艺术效果的心理评价实验,结果显示其生成的视觉效果新颖而多样化,且易于实现笔式交互编辑。这种图像模型可作为一种新型的艺术媒介。In order to create novel artistic effects, a period-dynamic-image model was proposed, in which each element is a periodic function. Instead of using an array of color pixels to represent a digital image, a Fourier model was used to represent a periodic dynamic image as an array of functional pixels, and the output of each pixel was computed by a Fourier synthesis process. Then three applications with three rendering styles were put forward, including dynamic painting, dynamic distortion effects and dynamic speech balloons, to visually display the periodic dynamic images. A prototype system was constructed and a series of experiments were performed. The results demonstrate that the proposed method can effectively explore the novel artistic effects of periodic dynamic images, and it can be used as a new art media.

关 键 词：数字艺术 图像表达 周期函数 傅里叶合成 动态图像 动画 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]