Active solution of homography for pavement crack recovery with four laser lines

Abstract An active solution method of the homography, which is derived from four laser lines, is proposed to recover the pavement cracks captured by the camera to the real-dimension cracks in the pavement plane. The measurement system, including a camera and four laser projectors, captures the proje...

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Autores principales:	Guan Xu, Fang Chen, Guangwei Wu, Xiaotao Li
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b3f97af813d546aca8c789928b152db5
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spelling	oai:doaj.org-article:b3f97af813d546aca8c789928b152db52021-12-02T11:40:36ZActive solution of homography for pavement crack recovery with four laser lines10.1038/s41598-018-25572-92045-2322https://doaj.org/article/b3f97af813d546aca8c789928b152db52018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25572-9https://doaj.org/toc/2045-2322Abstract An active solution method of the homography, which is derived from four laser lines, is proposed to recover the pavement cracks captured by the camera to the real-dimension cracks in the pavement plane. The measurement system, including a camera and four laser projectors, captures the projection laser points on the 2D reference in different positions. The projection laser points are reconstructed in the camera coordinate system. Then, the laser lines are initialized and optimized by the projection laser points. Moreover, the plane-indicated Plücker matrices of the optimized laser lines are employed to model the laser projection points of the laser lines on the pavement. The image-pavement homography is actively determined by the solutions of the perpendicular feet of the projection laser points. The pavement cracks are recovered by the active solution of homography in the experiments. The recovery accuracy of the active solution method is verified by the 2D dimension-known reference. The test case with the measurement distance of 700 mm and the relative angle of 8° achieves the smallest recovery error of 0.78 mm in the experimental investigations, which indicates the application potentials in the vision-based pavement inspection.Guan XuFang ChenGuangwei WuXiaotao LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Guan Xu Fang Chen Guangwei Wu Xiaotao Li Active solution of homography for pavement crack recovery with four laser lines
description	Abstract An active solution method of the homography, which is derived from four laser lines, is proposed to recover the pavement cracks captured by the camera to the real-dimension cracks in the pavement plane. The measurement system, including a camera and four laser projectors, captures the projection laser points on the 2D reference in different positions. The projection laser points are reconstructed in the camera coordinate system. Then, the laser lines are initialized and optimized by the projection laser points. Moreover, the plane-indicated Plücker matrices of the optimized laser lines are employed to model the laser projection points of the laser lines on the pavement. The image-pavement homography is actively determined by the solutions of the perpendicular feet of the projection laser points. The pavement cracks are recovered by the active solution of homography in the experiments. The recovery accuracy of the active solution method is verified by the 2D dimension-known reference. The test case with the measurement distance of 700 mm and the relative angle of 8° achieves the smallest recovery error of 0.78 mm in the experimental investigations, which indicates the application potentials in the vision-based pavement inspection.
format	article
author	Guan Xu Fang Chen Guangwei Wu Xiaotao Li
author_facet	Guan Xu Fang Chen Guangwei Wu Xiaotao Li
author_sort	Guan Xu
title	Active solution of homography for pavement crack recovery with four laser lines
title_short	Active solution of homography for pavement crack recovery with four laser lines
title_full	Active solution of homography for pavement crack recovery with four laser lines
title_fullStr	Active solution of homography for pavement crack recovery with four laser lines
title_full_unstemmed	Active solution of homography for pavement crack recovery with four laser lines
title_sort	active solution of homography for pavement crack recovery with four laser lines
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/b3f97af813d546aca8c789928b152db5
work_keys_str_mv	AT guanxu activesolutionofhomographyforpavementcrackrecoverywithfourlaserlines AT fangchen activesolutionofhomographyforpavementcrackrecoverywithfourlaserlines AT guangweiwu activesolutionofhomographyforpavementcrackrecoverywithfourlaserlines AT xiaotaoli activesolutionofhomographyforpavementcrackrecoverywithfourlaserlines
_version_	1718395601702354944

Active solution of homography for pavement crack recovery with four laser lines

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