SHI Jin-long, QIAN Qiang, PANG Lin-bin etc. Three-dimensional measurement and registration for large scale plates[J]. Editorial Office of Optics and Precision Engineering, 2014,22(5): 1165-1170
SHI Jin-long, QIAN Qiang, PANG Lin-bin etc. Three-dimensional measurement and registration for large scale plates[J]. Editorial Office of Optics and Precision Engineering, 2014,22(5): 1165-1170 DOI: 10.3788/OPE.20142205.1165.
Three-dimensional measurement and registration for large scale plates
A 3D registration method based on the projection was proposed to align different 3D point clouds for measuring large-scale bending steel plates.First
the 3D measurement of a large-scale bending plate was performed by using a 3D optical scanner and a background projector
in which the 3D optical scanner was used to acquire the dense data of different partial views for the large bending plate and the background projector was used for projecting the background texture on the bending plate to align the point clouds measured at different time.Then
the point clouds were aligned by using the RANdom SAmple Consensus(RANSAC) based registration method and the 3D data measured from different time were registered.Finally
an evaluation method was proposed to verify the registration precision.The experimental results show that the precision of one registration is about 0.5 mm
and the accumulated registration error for measuring a plate with a length of 7.5 mm is about 2 mm.The effectiveness and performance evaluated by the experiments prove that the proposed method can satisfy the requirement of stability and accuracy for the industrial applications.
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