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7 March 2006 Linear integer unconcerned phase-maps Fourier-transform profilometry by changing the angle of projection
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Abstract
The linear integer unconcerned phase-maps fringe projection profilometry has been used to measure the 3-D shape of object with discontinuous height steps. Linear integer unconcerned phase-maps are obtained by changing the angle of grating projected. The technique permits that the frequency of grating is not changed. An automated analysis of the fringe patterns is carried out by the Fourier transform method. Experimental results are presented that demonstrate the validity of the principle.
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Jingang Zhong "Linear integer unconcerned phase-maps Fourier-transform profilometry by changing the angle of projection", Proc. SPIE 4101, Laser Interferometry X: Techniques and Analysis, (7 March 2006); https://doi.org/10.1117/12.498422
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