%0 Journal Article %1 1742-2140-9-5-558 %A Rivera-Rios, Aixa M %A Flores-Marquez, Elsa Leticia %D 2012 %J Journal of Geophysics and Engineering %K HT gpr %N 5 %P 558 %T Image-radargram analysis based on generalized Hough transform: experimental cases %U http://stacks.iop.org/1742-2140/9/i=5/a=558 %V 9 %X This paper presents an algorithm based on the generalized Hough transform (GHT) to enhance geological structures in a 2D profile image constructed from ground-penetrating radar data. The proposed algorithm is applied over an edge representation image of the radargram; its local application (in Windows) allows us to identify structures and to obtain a global image delimiting the subsurface structures of interest. To show and validate the program, it was applied to two experimental cases: the first one is a profile of volcanic stratigraphic structures, and the second one consists of three buried pipes. The GHT algorithm enhances the main geological structures for both examples. Due to the use of a monostatic antenna in the case of buried pipes, a proper velocity analysis could not be done. As a consequence, the radargram remained under-migrated leaving some traces of diffraction hyperbola tails. These traces were detected by the GHT; therefore, a robust algorithm was designed to adjust a circle over these hyperbola traces. This secondary algorithm is called ‘circular structure determination’.

@article{1742-2140-9-5-558, abstract = {This paper presents an algorithm based on the generalized Hough transform (GHT) to enhance geological structures in a 2D profile image constructed from ground-penetrating radar data. The proposed algorithm is applied over an edge representation image of the radargram; its local application (in Windows) allows us to identify structures and to obtain a global image delimiting the subsurface structures of interest. To show and validate the program, it was applied to two experimental cases: the first one is a profile of volcanic stratigraphic structures, and the second one consists of three buried pipes. The GHT algorithm enhances the main geological structures for both examples. Due to the use of a monostatic antenna in the case of buried pipes, a proper velocity analysis could not be done. As a consequence, the radargram remained under-migrated leaving some traces of diffraction hyperbola tails. These traces were detected by the GHT; therefore, a robust algorithm was designed to adjust a circle over these hyperbola traces. This secondary algorithm is called ‘circular structure determination’.}, added-at = {2013-02-27T17:33:30.000+0100}, author = {Rivera-Rios, Aixa M and Flores-Marquez, Elsa Leticia}, biburl = {https://www.bibsonomy.org/bibtex/25b0caee24f6e874804424b71f0e793d0/andre@ismll}, description = {Image-radargram analysis based on generalized Hough transform: experimental cases - Abstract - Journal of Geophysics and Engineering - IOPscience}, interhash = {44649c4a2ee7ef7dde21939c201501a0}, intrahash = {5b0caee24f6e874804424b71f0e793d0}, journal = {Journal of Geophysics and Engineering}, keywords = {HT gpr}, number = 5, pages = 558, timestamp = {2013-02-27T17:33:30.000+0100}, title = {Image-radargram analysis based on generalized Hough transform: experimental cases}, url = {http://stacks.iop.org/1742-2140/9/i=5/a=558}, volume = 9, year = 2012 }