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21 June 2019 3D shape measurement in the presence of interreflections by light stripe triangulation with additional geometric constraints
Yang Xu, Huijie Zhao, Hongzhi Jiang, Yunfan Wang, Xudong Li
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Proceedings Volume 11056, Optical Measurement Systems for Industrial Inspection XI; 110563N (2019) https://doi.org/10.1117/12.2525667
Event: SPIE Optical Metrology, 2019, Munich, Germany
Abstract
Traditional optical 3D shape measurement methods, such as light stripe triangulation, binary coding, and fringe projection, cannot acquire complete and correct 3D measurement results in the presence of interreflections. In this research, a 3D shape measurement method in the presence of interreflections based on light stripe triangulation is presented. The wrong measurement results caused by interreflections are excluded by the geometric constraints introduced by an additional camera. Each 3D point reconstructed by light stripe triangulation is projected onto the image plane of the additional camera to determine whether the 3D point is correct measurement result. Experimental results demonstrate that the proposed method can measure 3D shape in the presence of interreflections.
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Yang Xu, Huijie Zhao, Hongzhi Jiang, Yunfan Wang, and Xudong Li "3D shape measurement in the presence of interreflections by light stripe triangulation with additional geometric constraints", Proc. SPIE 11056, Optical Measurement Systems for Industrial Inspection XI, 110563N (21 June 2019); https://doi.org/10.1117/12.2525667
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KEYWORDS
3D metrology
3D image reconstruction
Stereo vision systems
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