期刊文献+

基于扩散平衡的电磁测深曲线平滑 被引量:1

ELECTROMAGNETIC SOUNDING CURVE SMOOTHING BASED ON DIFFUSION BALANCE
下载PDF
导出
摘要 在实测电磁测深曲线处理中,需要进行平滑以消除噪声的影响,这就会存在平滑不足或平滑过度的问题,那么,怎样选择一个合适的扩散时间尺度就显得尤为重要。这里通过各向异性扩散过程中信号与噪声能量的变化,利用扩散平衡来确定平滑的时间尺度。通过模拟及实测数据测试显示,该方法能在噪声压制与信号特征保护和形态恢复上,达到一个合理的平衡。 Electromagnetic sounding curve need to be smoothed for removing the noise in the pre-processing,the curve may be under-smoothed or over-smoothed.So it is important how to select a proper smoothing scale.In this paper,we determine the smoothing scale by diffusion balance with analyzing the signal and the noise energy variation in anisotropic diffusion smoothing processing.The synthetic and field data tests show that a balance can be reached between noise suppression and curve feature preservation and restoration by the new smoothing and time scale estimation method.
出处 《物探化探计算技术》 CAS CSCD 2009年第4期303-307,共5页 Computing Techniques For Geophysical and Geochemical Exploration
基金 国家自然科学基金项目(60672042) 博士点基金项目(20070533102)
关键词 电磁法 噪声 各向异性扩散 扩散平衡 electromagnetic method noise anisotropic diffusion diffusion balance
  • 相关文献

参考文献9

  • 1MARR D,HILDRETH E.Theory 0f edge detection[C].Proc Roy Soc London Ser.B,1980.
  • 2WTTKIN A P."Scalc-space filtering"[C].in Proc.Int.Joint Conf.Artif Intell.,1983.
  • 3PERONA P,MALIK J.scalc-space and edse detection using anisotropic diffusion[J],IEEE Tram.Pattern Ahal.MachiHe Intell.,1990,12(7):629.
  • 4严家斌,刘贵忠.各向异性扩散在电磁测深曲线平滑中的应用[J].地球物理学进展,2006,21(4):1208-1212. 被引量:2
  • 5YOU Y L,XU W,TANNENBAUM A,et al.Behaviond analysis of anisotropic diffusion in image processing[J].IEEE Transactions on Inage Processing,1996,(5):1539.
  • 6CKITE F,LIONS P-L,MOREL J-M,et al.Image selective smoothing and edge detection by nonlinear diffusion[J].SIAM J.Numer.Anal.,1992,29:182.
  • 7BLACK J,SAPIRO G,MARIMONT H.Robust anisotropic diffusion[J].IEEE Tram.IP,1998,7(3):421.
  • 8BARCELOS C A Z,BOAVENTURA M,SILVA E C.Awell-balance flow equation for noise removal and edge detection[J].IEEE Trans,IP,2003,V12(7):751.
  • 9严家斌,刘贵忠.一种新的各向异性扩散时间尺度估计方法[J].计算机工程,2008,34(2):43-45. 被引量:4

二级参考文献23

  • 1汤吉,詹艳,赵国泽,邓前辉,王继军,陈小斌,赵俊猛,宣飞.青藏高原东北缘玛沁—兰州—靖边剖面地壳上地幔电性结构研究[J].地球物理学报,2005,48(5):1205-1216. 被引量:73
  • 2刘国兴,张兴洲,杨宝俊,翁爱华,唐君辉,李雪森.佳木斯地块及东缘岩石圈电性结构特征[J].地球物理学报,2006,49(2):598-603. 被引量:23
  • 3Marr D,Hildreth E.Theory of edge detection[C].Proc.Roy.Soc.London Ser.B,1980:187~217.
  • 4Witkin A P."Scale-space filtering",in Proc.Int.Joint Conf.Artif.Intell.,1983:1019~1021
  • 5Perona P,Malik J.Scale-space and edge detection using anisotropic diffusion[J].IEEE Trans.Pattern Anal.Machine Intell.,1990,12,7:629~639.
  • 6Catte F,Lions P L,Morel J M,Coll T.Image selective smoothing and edge detection by nonlinear diffusion[J].SIAM J.Numer.Anal.,1992,29:182~193.
  • 7Restrepo A,(Palacios),Bovik A C.Locally monotonic regression[J].IEEE Trans.Signal Process,1993,41:2796~2810.
  • 8Sidiropoulos N.Fast digital locally monotonic regression[J].IEEE Trans.Sig.Proa,1997,45:389~395.
  • 9Acton S T."Anisotropic diffusion and local monotonicity" ICASSP '98[J]..Proceedings of the 1998 IEEE International Conference,1998,1293~1296.
  • 10You Y L,Xu W,Tannenbaum A,Kaveh M.Behavioral analysis of anisotropic diffusion in image processing[J].IEEE Transactions on Image Processing,1996,5:1539~ 1553.

共引文献4

同被引文献6

引证文献1

二级引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部