Random noise elimination based on the time-space variant median filtering

被引：0
|
作者：
Sun Z. [1 ]
Wang J. [1 ]
Wang J. [1 ]
Yu M. [1 ]
Zhang K. [1 ]
机构：
[1] Acquisition Technique Support Department, BGP Inc., CNPC, Zhuozhou, 072751, Hebei
[2] Development and Production Seismic Department, BGP Inc., CNPC, Zhuozhou, 072750, Hebei
来源：
Sun, Zhe (fantasy_spz@aliyun.com) | 2016年 / Science Press卷 / 51期
关键词：
Filtering direction; Filtering length; Median filtering method; Random noise; Time-space variant;
D O I：
10.13810/j.cnki.issn.1000-7210.2016.06.007
中图分类号：
学科分类号：
摘要：
Classical one-dimensional median filtering methods have some defects such as singleness in filtering direction and filter window length. To solve these problems, we propose in this paper a method for random noise elimination based on the time-space variant median filtering. On one hand, we set an appropriate filtering direction at every sample point according to the coherence characteristics of reflection events; and on the other hand, we choose an appropriate filtering length at every sample point according to the coherence degree of seismic data. Test results on model and real data show that the proposed method can effectively eliminate random noise on both shot records and seismic sections. © 2016, Editorial Department OIL GEOPHYSICAL PROSPECTING. All right reserved.
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页码：1094 / 1102
页数：8
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