Image processing of seismograms: (a) Hough transformation for the detection of seismic patterns; (b) thinning processing in the seismogram

摘要

Hough transformation is used to detect the seismic patterns on the seismogram. The system of Hough technique includes envelope generation, thresholding, Hough transformation, and parameter determination. Visual inspection method, local peak detection method, and clustering algorithm are used to determine the parameters. Thinning algorithms are used for the skeletonization of the seismic reflectors in the seismogram. The thinning algorithms used are fast parallel thinning algorithm and 2D thinning algorithm preserving 8- and 4-point neighbor connectivities.