Abstract

摘要: 该文给出了二维经验模态分解(BEMD)的实现方法,针对实现二维EMD的两种常用插值方式三角剖分插值和径向基函数插值,通过理论和计算实践分析比较了两种插值方式的速度、视觉效果等,提出两种方法相结合的BEMD实现方法。同时,针对径向基函数插值方式提出了一种快速方法。该方法避免了求解大型线性方程组以及大矩阵的产生,较好地降低了时间和空间复杂度,提高了计算速度。实验结果证明了该方法的可行性和优越性。 关键词: 图像处理 / 二维EMD / 多尺度分析 / 径向基函数

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