Automatic Faults Extraction using double Hough Transform

in: SEG Technical Program Expanded Abstracts, pages 755-758

Abstract

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.

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    BibTeX Reference

    @INPROCEEDINGS{Jacquemin_05,
        author = { Jacquemin, Pierre and Mallet, Jean-Laurent },
         title = { Automatic Faults Extraction using double Hough Transform },
     booktitle = { SEG Technical Program Expanded Abstracts },
          year = { 2005 },
         pages = { 755-758 },
        school = { gOcad research group, Nancy School of Geology, Nancy - France },
      abstract = { 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. }
    }