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基于“图像”分割的小波脊线提取算法

, PP. 665-670

Keywords: 图像与信息处理,图像分割,脊提取,信号去噪,信号分离

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Abstract:

针对传统脊线提取算法不能同时兼顾速度和精度的问题,本文提出了一种新的基于“图像”分割的小波脊线提取算法。对渐近性信号进行连续小波变换以后,模值较大的小波系数往往集中在时间-尺度平面上几个分散的区域,将小波系数模值矩阵看作一个“图像”,对其分割,再对分割得到的每个区域确定其极值位置可得到小波脊线。仿真实验表明本文算法不仅较传统脊线算法在精度和效率都有所提高,在信号去噪和信号分离中也表现良好。

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