一种楔波近似快速算法

Fast algorithm of wedgelets approximation

为了降低多边形区域上矩计算的复杂度和减少楔波近似的运算时间,提出了一种楔波近似快速新算法。采用任意局部退化模型代替局部恒定退化模型,对比实验结果表明:新算法与现有文献的算法相比,运算速度提高了3个数量级;适用于不同参数的模型,灵活性得到较大提高。

To reduce the complexity of moment calculation and the running time of wedgelets approximation, a fast algorithm of wedgelets approximation was proposed by replacing arbitrary local regression model with locally constant regression model. The experiments show that the new algorithm can result in a speedup of 0 （ 103） of implementation compared to the available implementation algorithms in literature. It can be applied to the model with different parameters and the flexibility has been improved.