利用边缘检测法检测地震反射同相轴

Detection of sesmic reflection event by edge-detection

为了提高地震剖面的信噪比和分辨率 ,使反射同相轴容易被识别和追踪 ,应用边缘检测法检测地震反射同相轴 .边缘检测是寻找特征 (一般是灰度 )急剧变化的位置 ,从而求出对象物的边界线 .针对地震剖面上同相轴所具有的特征 ,选择具有良好特性的Sobel算子进行边缘检测 ,并对其改进 .应用该方法对实际地震剖面进行了处理 ,处理后的地震剖面同相轴品质及连续性有了明显改善 ,信噪比增强 ,分辨率相应提高 .

In order to enhance the signal/noise ratio and resolution of seismic section, and to distinguish and pursue the seismic event more easily, we apply the edge detection algorithm to detecting the seismic event. The edge detection algorithm is to search for the position of characteristics abrupt changing, and to obtain the boundary line of the object. In point of the characteristics of the seismic event, we select Sobel algorithm, and improve the Sobel algorithm. We use this algorithm to process the real seismic section, the quality and consecutive of seismic event are improved obviously, so that the signal/noise ratio and resolution of seismic section are improved.