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’.
Описание
Image-radargram analysis based on generalized Hough transform: experimental cases - Abstract - Journal of Geophysics and Engineering - IOPscience
%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
}