Detection of Deformation in Beam-Type Steel Sheet Pile Revetment by Image Data with Hough Transform

Abstract

In terms of maintenance, it is essential to evaluate deformation of sheet pile materials in corroded canal revetment. In this paper, for beam-type agricultural canals, inclination angles of steel sheet pile revetment are estimated by using image data with the Hough Transform (HT) which is one of figure detection methods. Detecting straight lines is performed on the digital images of steel sheet pile revetment. In analytical images of steel sheet pile canals, straight lines are detected which are based on not only steel sheet piles but also coping concrete, beams and cross section defects. It is revealed that inclination angles of steel sheet piles are estimated by the HT. It is suggested that inclination angles of steel sheet piles are evaluated by using digital images.