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On-line phase measuring profilometry based on phase matching
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DOI：10.1007/s11082-016-0675-y.png)
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On-line phase measuring profilometry based on phase matching is proposed. While just one fixed sinusoidal fringe is projected on a measured object moving with the pipeline, deformed patterns modulated by the object moving at the same distance moment are captured synchronously by the CCD camera. The phase information of the object in those captured deformed patterns can be predicted using FTP method to assist the pixel matching so as to realize the point-to-point correspondence of the object in the captured deformed patterns. Meanwhile, the equivalent phase-shifting deformed patterns can be extracted. So the three dimensional shape of the object can be reconstructed successfully with an equal phase-shifting algorithm. Numerical simulation and experiments show feasibility and validity of the proposed method.
Keyword:
On-line phase measuring profilometry
PMP
FTP
Pixel matching
The equivalent phase-shifting algorithm
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Recent progresses on real-time 3D shape measurement using digital fringe projection techniques基于数字条纹投影技术的实时三维形貌测量研究进展
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