Solution for Shiny Specular 3D Mechanical Surface Measurement using Combined Phase Shift and Gray Code Light Projection
Main Article Content
Abstract
Non-contacts 3D shape measurement has been widely studied and applied to many advantages in terms of speed, accuracy and ease of implementation. However, the measuring system is still limited when measuring surfaces with high reflectivity by the optical signal cannot be obtained correctly. This paper proposes a new approach to solve the problem of measuring mechanical surface with high implementation. The appropriate exposure times in each region of the histogram are determined, then point clouds are merged at appropriate exposure times to obtain a good quality point cloud to avoid the saturation region on the CCD. Two different aluminum surfaces profile parts are measured with using single exposure time and proposed solution. Experimental results prove that the proposed solution can inspect the 3D surface of the mechanical parts with high surface reflectivity.
Keywords
3D shape measurement, Fringe projection, Shiny surface, High dynamic range
Article Details
References
[1] H. Jiang, H. Zhao, and X. Li; High dynamic range fringe acquisition: A novel 3-D scanning technique for high-reflective surfaces; Opt. Lasers Eng., vol. 50, no. 10, pp. 1484–1493, 2012.
[2] H. Lin, J. Gao, Q. Mei, Y. He, J. Liu, and X. Wang; Adaptive digital fringe projection technique for high dynamic range three-dimensional shape measurement; Opt. Express, vol. 24, no. 7, pp. 7703, 2016.
[3] H. Lin, J. Gao, Q. Mei, G. Zhang, Y. He, and X. Chen; Three-dimensional shape measurement technique for shiny surfaces by adaptive pixel-wise projection intensity adjustment; Opt. Lasers Eng., vol. 91, no. October 2016, pp. 206–215, 2017.
[4] S. Umeyama and G. Godin; Separation of diffuse and specular components of surface reflection by use of polarization and statistical analysis of images; IEEE Trans. Pattern Anal. Mach. Intell., vol. 26, no. 5, pp. 639–647, 2004.
[5] C. Xiaobo, X. Jun tong, J. Tao, and Y. Je; Research and development of an accurate 3D shape measurement system based on fringe projection: Model analysis and performance evaluation; Precis. Eng., vol. 32, no. 3, pp. 215–221, 2008.
[6] S. Feng, Q. Chen, C. Zuo, and A. Asundi; Fast three-dimensional measurements for dynamic scenes with shiny surfaces; Opt. Commun., vol. 382, pp. 18–27, 2017.
[7] C. Zuo, Q. Chen, S. Feng, F. Feng, G. Gu, and X. Sui; Optimized pulse width modulation pattern strategy for three-dimensional profilometry with projector defocusing; Appl. Opt., vol. 51, no. 19, pp. 4477–90, 2012.
[8] S. Feng, Y. Zhang, Q. Chen, C. Zuo, R. Li, and G. Shen; General solution for high dynamic range three-dimensional shape measurement using the fringe projection technique; Opt. Lasers Eng., vol. 59, pp. 56–71, 2014.
[2] H. Lin, J. Gao, Q. Mei, Y. He, J. Liu, and X. Wang; Adaptive digital fringe projection technique for high dynamic range three-dimensional shape measurement; Opt. Express, vol. 24, no. 7, pp. 7703, 2016.
[3] H. Lin, J. Gao, Q. Mei, G. Zhang, Y. He, and X. Chen; Three-dimensional shape measurement technique for shiny surfaces by adaptive pixel-wise projection intensity adjustment; Opt. Lasers Eng., vol. 91, no. October 2016, pp. 206–215, 2017.
[4] S. Umeyama and G. Godin; Separation of diffuse and specular components of surface reflection by use of polarization and statistical analysis of images; IEEE Trans. Pattern Anal. Mach. Intell., vol. 26, no. 5, pp. 639–647, 2004.
[5] C. Xiaobo, X. Jun tong, J. Tao, and Y. Je; Research and development of an accurate 3D shape measurement system based on fringe projection: Model analysis and performance evaluation; Precis. Eng., vol. 32, no. 3, pp. 215–221, 2008.
[6] S. Feng, Q. Chen, C. Zuo, and A. Asundi; Fast three-dimensional measurements for dynamic scenes with shiny surfaces; Opt. Commun., vol. 382, pp. 18–27, 2017.
[7] C. Zuo, Q. Chen, S. Feng, F. Feng, G. Gu, and X. Sui; Optimized pulse width modulation pattern strategy for three-dimensional profilometry with projector defocusing; Appl. Opt., vol. 51, no. 19, pp. 4477–90, 2012.
[8] S. Feng, Y. Zhang, Q. Chen, C. Zuo, R. Li, and G. Shen; General solution for high dynamic range three-dimensional shape measurement using the fringe projection technique; Opt. Lasers Eng., vol. 59, pp. 56–71, 2014.