3D Denoising Method through Visual Speed in Frequency-Wavenumber Domain
详细信息
- 责任者：He Xuli (Faculty of Computer Communication & Engineering ; China University of Petroleum ; Dongying 257061 ; China) ; Liu Suqin
- 刊名：Journal of China University of Petroleum
- 出版年：2010
- 卷期：34(4)
- 关键词：去噪 ; denoising ; 三维地震法 ; three-dimensional seismic methods
- 页码：p.62-66
- 图表：4 illus., 11 refs.
- 分类号：1600
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
A 3D denoising method was put forward. The noise through visual speed in 3D frequency-wavenumber domain is removed utilizing the corresponding relationship between the time-spatial coordinates and Fourier transformation.The Gibbs effect is avoided by weighting and attenuating the cosine function. The results show that the denoising method can effectively distinguish valid information from interfering information. When the visual speed of the valid information and interfering information are very close, the valid information can be properly retained while removing the interfering information. Different denoising steps will be used when the signal-to-noise ratio of seismic data is general or very low. The denoising method is used in actual seismic data processing. It can promote signal-to-noise ratio greatly, and achieve good effect in keeping authenticity and extent. 3D denoising method has many advantages compared with 2-D denoising method.