Title :
Stereo reconstruction of semiregular meshes, and multiresolution analysis for automatic detection of dents on surfaces
Author :
Peyrot, Jean-Luc ; Payan, Frederic ; Ruchaud, Natacha ; Antonini, Marc
Author_Institution :
Lab. I3S, Univ. Nice, Nice, France
Abstract :
Our objective is to include in stereoscopic 3D acquisition systems new technologies to automatically detect deformations on aircraft fuselages. We propose in this paper a semiregular mesh reconstruction dedicated to stereoscopic scanners, combined to a multiresolution analysis tool that detects dents on smooth surfaces. The proposed technique for reconstruction is based on a coarse-to-fine approach, and creates semiregular meshes directly from the stereoscopic images. The output of our scanner is thus a structured mesh, by the way well suited for many applications unlike most of scanners that generate only point clouds. Local distances are then calculated between this semiregular mesh and a smooth version of it, in order to automatically detect dents on the scanned surface. The smooth version is obtained via a technique based on multiresolution analysis. Experimental results show the reliability of our contributions on scanned aircraft fuselages.
Keywords :
aerospace components; aircraft; deformation; image reconstruction; image resolution; mechanical engineering computing; stereo image processing; automatic deformation detection; coarse-to-fine approach; dent detection; multiresolution analysis tool; scanned aircraft fuselages; semiregular mesh reconstruction; smooth surfaces; stereoscopic 3D acquisition systems; stereoscopic images; stereoscopic scanners; Computational modeling; Image reconstruction; Multiresolution analysis; Stereo image processing; Surface reconstruction; Surface waves; Three-dimensional displays; 3D reconstruction; Semiregular; acquisition; multiresolution analysis; stereoscopy;
Conference_Titel :
Image Processing (ICIP), 2014 IEEE International Conference on
Conference_Location :
Paris
DOI :
10.1109/ICIP.2014.7026096