基于小波分析及CB形态滤波的地震同相轴检测  

Seismic event detection based on wavelet analysis and CB shaping filtering

作　　者：石玉梅[1] 刘天放[1] 谢桂生 

机构地区：[1]中国矿业大学 [2]西南石油学院

出　　处：《石油地球物理勘探》2000年第5期565-570,共6页Oil Geophysical Prospecting

摘　　要：根据地震同相轴及断层的特性 ,本文基于 Bubble函数构造母小波函数 ,并采用高斯函数为父函数 ,对地震资料进行了二维小波分析 ,提取了地震同相轴的边缘信息 ,并二值化为二值图像 ,然后用 CB形态滤波删除图像中延展度小的连通分量 (噪声 )。理论和实例计算表明 ,该方法具有很好的效果。The paper shows how to construct a parent wavelet function based on Bubble function according to feature of seismic event and fault. After using Gauss function as a parent function, a 2 D wavelet analysis has been conducted from seismic data and edges information of seismic event has been detected, which became a two valued image by two valuedness, then joint component with small extension (noise) has been deleted from the picture using CB shaping filtering. Theory and real data showed that the technique has excellent result.

关 键 词：小波变换 同相轴 边缘检测 CB形态滤波 地震勘探 

分 类 号：P631.443[天文地球—地质矿产勘探]