Tree modeling USES the iterated function system based on fractal theory. The parameterized curve is used to simulate the bending state of tree branches.
树木建模采用分形理论的迭代函数系统来完成，建模时着重实现了以参数化曲线拟合的方法来模拟枝条的自然弯曲状态。
The image coding method based on fractal theory is firstly proposed by Barnsley in 1988, which is developed from mathematical theory called Iterated Function Systems (IFS).
其中，基于分形理论的图像编码方法以其编码思想新颖、高压缩比、多分辨率、快速解码等优点受到了广泛关注。
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