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Random noise attenuation by 3D Multi-directional vector median filter
Wu, Shaojiang1,2; Wang, Yibo1; Di, Zhixin3; Chang, Xu1
2018-12-01
发表期刊JOURNAL OF APPLIED GEOPHYSICS
ISSN0926-9851
卷号159页码:277-284
摘要Noise attenuation is an important data processing step in exploration geophysics, which is used to extract useful information or improve the signal to noise ratio (SNR) from the raw measurements. The vector median filter (VMF), as an extension of the scalar median filter (SMF), can efficiently suppress random noise and preserve discontinuities of the spreading structures within the data, but it faces questions of how to define a minimum distance and what appropriate additional constraints should be introduced for a reasonable unique median-output vector. Additionally, to avoid uncertainty in data processing using the 2D-VMF method and to more reasonably describe the 3D seismic cube, this study introduces a 3D multi-directional VMF. The new 3D-MDVMF method primarily consists of two steps: 1) detecting the main local dip using some trial angles with a similarity judgement and 2) applying the filter with the constraints for noise suppression and structure enhancement. Synthetic simulated data and marine data are tested. The results show that the proposed method can enhance local dip detection, separate the random noise, and well preserve discontinuities of the structures. This method might be significant for general noise attenuation for data containing spreading structures. (C) 2018 Elsevier B.V. All rights reserved.
关键词Noise attenuation Median filter Seismic data Multi-directional operator
DOI10.1016/j.jappgeo.2018.09.021
资助者National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program)
语种英语
资助项目National Basic Research Program of China (973 Program)[2015CB258500]
资助者National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program)
WOS研究方向Geology ; Mining & Mineral Processing
WOS类目Geosciences, Multidisciplinary ; Mining & Mineral Processing
WOS记录号WOS:000453644600027
出版者ELSEVIER SCIENCE BV
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/90290
专题页岩气与地质工程院重点实验室
通讯作者Wang, Yibo
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
3.Sinopec Geophys Corp, Shengli Branch, Dongying 257086, Peoples R China
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GB/T 7714
Wu, Shaojiang,Wang, Yibo,Di, Zhixin,et al. Random noise attenuation by 3D Multi-directional vector median filter[J]. JOURNAL OF APPLIED GEOPHYSICS,2018,159:277-284.
APA Wu, Shaojiang,Wang, Yibo,Di, Zhixin,&Chang, Xu.(2018).Random noise attenuation by 3D Multi-directional vector median filter.JOURNAL OF APPLIED GEOPHYSICS,159,277-284.
MLA Wu, Shaojiang,et al."Random noise attenuation by 3D Multi-directional vector median filter".JOURNAL OF APPLIED GEOPHYSICS 159(2018):277-284.
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