Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-5/W2, 171-176, 2013
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-5-W2/171/2013/
doi:10.5194/isprsarchives-XL-5-W2-171-2013
© Author(s) 2013. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
19 Jul 2013
ACCURACY ASSESSMENT OF A CANAL-TUNNEL 3D MODEL BY COMPARING PHOTOGRAMMETRY AND LASERSCANNING RECORDING TECHNIQUES
P. Charbonnier1, P. Chavant1,2, P. Foucher1, V. Muzet1, D. Prybyla1, T. Perrin1, P. Grussenmeyer2, and S. Guillemin2 1CETE de l’Est, LRPC de Strasbourg, 11 rue Jean Mentelin, 67035 Strasbourg, France
2ICube Laboratory UMR 7357, Photogrammetry and Geomatics Group, INSA de Strasbourg, 24 Bd de la Victoire, 67084 Strasbourg, France
Keywords: Photogrammetry, Cultural Heritage, Laser Scanning, Point Cloud, Model, Recording, Accuracy, Comparison Abstract. With recent developments in the field of technology and computer science, conventional methods are being supplanted by laser scanning and digital photogrammetry. These two different surveying techniques generate 3-D models of real world objects or structures. In this paper, we consider the application of terrestrial Laser scanning (TLS) and photogrammetry to the surveying of canal tunnels. The inspection of such structures requires time, safe access, specific processing and professional operators. Therefore, a French partnership proposes to develop a dedicated equipment based on image processing for visual inspection of canal tunnels. A 3D model of the vault and side walls of the tunnel is constructed from images recorded onboard a boat moving inside the tunnel. To assess the accuracy of this photogrammetric model (PM), a reference model is build using static TLS. We here address the problem comparing the resulting point clouds. Difficulties arise because of the highly differentiated acquisition processes, which result in very different point densities. We propose a new tool, designed to compare differences between pairs of point cloud or surfaces (triangulated meshes). Moreover, dealing with huge datasets requires the implementation of appropriate structures and algorithms. Several techniques are presented : point-to-point, cloud-to-cloud and cloud-to-mesh. In addition farthest point resampling, octree structure and Hausdorff distance are adopted and described. Experimental results are shown for a 475 m long canal tunnel located in France.
Conference paper (PDF, 8245 KB)


Citation: Charbonnier, P., Chavant, P., Foucher, P., Muzet, V., Prybyla, D., Perrin, T., Grussenmeyer, P., and Guillemin, S.: ACCURACY ASSESSMENT OF A CANAL-TUNNEL 3D MODEL BY COMPARING PHOTOGRAMMETRY AND LASERSCANNING RECORDING TECHNIQUES, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-5/W2, 171-176, doi:10.5194/isprsarchives-XL-5-W2-171-2013, 2013.

BibTeX EndNote Reference Manager XML