Automatic Faults Extraction Using Double Hough Transform
Automatic Faults Extraction Using Double Hough Transform
复制标题
DOI：
10.1190/1.2144436
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
P. Jacquemin;J. Mallet
中科院分区：
文献类型：
--
作者：
P. Jacquemin;J. Mallet
到目前为止，文献中已经提出了许多不同的地震属性来“标记”地震立方体中断层的存在。从这些属性中，现在的挑战是自动提取故障网络，其中每个故障都被选为点的子集。为此，我们建议使用一种基于两个Hough变换的级联的方法。该算法的基本思想是，断层与一系列(x，z)横截面的交点是(近似)一族直线。由于第一次Hough变换，这些直线中的每一条都被变换成第一参数空间中的点。对于每个断层，这样获得的点集在参数空间中(近似地)构成一条新的直线，然后由于新的Hough变换而被变换到第二参数空间中的点。然后，反向转换允许将每个断层重建为一组点。
Many different seismic attributes have been proposed so far in the literature to “mark” the presence of faults in a seismic cube. From these attributes, the challenge is now to extract, automatically, a fault network where each fault is singled out as a subset of points. For this purpose, we propose to use a method based on a cascade of two Hough transforms. The basic idea of this algorithm is that the intersection of a fault by a series of (x,z) cross sections is (approximately) a family of straight-lines. Each of these straight-lines is transformed into a point in a first parametric space thanks to a first Hough transform. For each fault, the set of points so obtained constitutes (approximately) a new straight-line in the parametric space which is then transformed into a point of a second parametric space thanks to a new Hough transform. Reverse transformations allow then to rebuild each fault as a set of points.