Steerable Pyramid分解方法及其在断层检测中的应用
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摘要
分析了Steerable Pyramid分解用于断层检测的基本原理.输入的三维地震时间切片经过Steerable Pyramid分解后,不仅可以分析不同尺度不同方向上断层的特征及走向,还可以通过重构得到断层信息.该信息不仅是断层的边缘检测,而且将断层直接提取出来.在去除了断层信息后,该方法还可用于河道砂的沉积成像.将该方法应用于一张实际的地震振幅属性切片,结果证明将Steerable Pyramid分解用于储层断层检测与沉积成像是成功的.但是,处理结果对空间平滑参数都很敏感,参数的最优选择要根据输入图像的特征而变.
The basic principle of decomposition and construction of Steerable Pyramid used to detect faults was given a detailed introduction. The characteristics and distribution of faults in different scales and directions after the decomposition of Steerable Pyramid were studied and faults information obtained through a re-construction. The information was not only concerned with the edge detection of fault, but also enhanced the fault itself. The images of channels were obtained after the faults were wiped off. It is proved that using Steerable Pyramid to detect faults and channels is a successful method. But the effect is susceptible to smoothing parameters, which should be selected based on the characteristics of the inputting figure.
The basic principle of decomposition and construction of Steerable Pyramid used to detect faults was given a detailed introduction. The characteristics and distribution of faults in different scales and directions after the decomposition of Steerable Pyramid were studied and faults information obtained through a re-construction. The information was not only concerned with the edge detection of fault, but also enhanced the fault itself. The images of channels were obtained after the faults were wiped off. It is proved that using Steerable Pyramid to detect faults and channels is a successful method. But the effect is susceptible to smoothing parameters, which should be selected based on the characteristics of the inputting figure.
引文
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[2]李杰.图像的方向多尺度分析及其应用研究[D].成都:电子科技大学电子工程学院,2007.
[3]陈香朋,曹思远.第二代小波变换及其在地震信号去噪中的应用[J].石油物探,2004,43(6):547-550.
[4]赵玉峰,周又和.沙粒图像中沙粒粒径的检测与识别[J].兰州大学学报:自然科学版,2007,43(1):41-45.
[5]顾可伟,张玮.基于第二代Curvelet变换的指纹预处理算法[J].兰州大学学报:自然科学版,2009,45(1):115-119.
[6]Candes E J,Demanet L,Donoho D L.Fast discrete curvelet transforms[M]//Applied and Computational Mathematics.Pasadena:California In-stitute of Technology,2005:1-43.
[7]Simoncelli E P,Freeman W T.The Steerable Pyramid:a?exible architecture for multi-scale derivative computation[C/OL]//(2010-11-28)[2010-12-20].http://ieeexplore.ieee.org/xpls/abs-all.jsp?arnumber=537667&tag=1.
[8]Denis F,Baskurt A.Multidirectional curvi-linear structures detection using Steerable Pyra-mid[J].Journal of Electronic Imaging,2004,13(4):756-765.
[9]Delleluche C,Denis F,Baskurt A.3D Steerable Pyramid based on conic filters[M/OL]//Truchetet F.Wavelet Application in Indus-trial Processing.(2004-02-14)[2010-12-20].http://adsabs.harvard.edu/abs/2004SPIE.5266.260D.
[10]Derpanis K G,Gryn J M.Three-dimensional derivative of Gaussian separable steerable filters[C/OL]//(2005-03-27)[2010-12-20].http://www.cvr.yorku.ca/members/gradstudents/kosta/pu-blications/file-ICIP05.pdf.
[11]Van Spaendonck R C,Hindriks F M,Fer-nandes F C A,et al.Three dimensional attributes for seismic interpretation[C/OL]//Annual Meeting Abstracts,70th Annual International meeting.(2000-08-06)[2010-12-20].http://segdl.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=SEGEAB000019000001002059000001&idtype=cvips&prog=search.
[12]John M,Dave H.Detection of channels in seismic images using the Steerable Pyramid[D].Colorado:Colorado School of Mines,2008.
[13]李志慧.虹膜识别特征提取与表达的理论和方法研究[D].吉林:吉林大学交通学院,2007.
[14]Freeman W T,Adelson E H.The design and use of steerable filters[J].IEEE Trans on Pattern Analysis and Machine Intelligence,1991,13(9):891-906.
[15]Lin Chun,Wang Xu-ben,Liu Si-bing.Ran-dom noise decaying of seismic data based on Steerable Pyramid decomposition[C]//Near Surface Geo-physics and Geohazards.New York:Science Press and Science Press USA Inc,2010:200-204.
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