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水生数据处理预处理代码

于 2022-04-06 发布 文件大小:9.01 kB
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代码说明:

针对传统的声成像去噪算法一般用于处理二维数据,并且基本上没有考虑数据中加性噪声和乘性噪声同时存在的特点,提出了一种面向可视的三维水声数据降噪算法。该算法分析了复合噪声模型特点,分别考虑水声数据中并存的加性和乘性噪声,结合空域和变换域,提出了分别进行模糊中值滤波和利用小波系数相关性的小波软阈值滤波的分层降噪方法,并在算法的实现过程中充分利用了数据的三维邻域信息。实验结果显示,该算法降低了原始数据的噪声,提高了数据连续性和对比度,增强了三维水声数据的可视效果。

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