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obtain the gradient field of the measured continuous regions, sinusoidal fringe patterns are projected onto the screen and the deformed patterns reflected via the surface are captured. The phase-shifting method and the optimum three-number fringe selection method are used to calculate the absolute phase. Thus the surface normal of the object under test is acquired. A slope integration algorithm based on gradient field and height reference is implemented in each sub-region respectively, and the threedimensional shape of the discontinuous specular object is reconstructed. The proposed method combines the advantages of high accuracy slope integral process and the absolute height measurement through texture extraction. This approach leads to high measurement accuracy for the discontinuous specular object. Experimental results show the proposed method is feasible and effective.
|Title of host publication||Proceedings of the 21st International Conference of the European Society for Precision Engineering and Nanotechnology|
|Subtitle of host publication||Euspen 2021|
|Editors||R. K. Leach, C. Nisbet, D. Phillips|
|Number of pages||4|
|Publication status||Published - 10 Jun 2021|
|Event||21st International Conference of the European Society for Precision Engineering and Nanotechnology - Virtual|
Duration: 7 Jun 2021 → 10 Jun 2021
Conference number: 21
|Conference||21st International Conference of the European Society for Precision Engineering and Nanotechnology|
|Abbreviated title||EUSPEN 2021|
|Period||7/06/21 → 10/06/21|
FingerprintDive into the research topics of 'A slope-height integrated method for discontinuous specular object measurement using stereo deflectometry'. Together they form a unique fingerprint.
- 1 Active
Jiang, J., Martin, H., Longstaff, A., Kadirkamanathan, V., Turner, M. S., Keogh, P., Scott, P., McLeay, T., Blunt, L., Zeng, W., Huntley, J. M., Bills, P., Fletcher, S., Gao, F., Coupland, J. M., Kinnell, P., Mahfouf, M. & Mullineux, G.
1/10/16 → 30/09/23