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In this paper, wavelet transform profilometry (WTP) method is studied to achieve a train wheel surface 3-D topography reconstruction and defects inspection. A structured light illumination is used to generate periodic fringes, and a CCD camera is used to capture the image of deformed fringes caused by a 3-D topography. The Complex Morlet wavelet is used to transform the deformed fringes image. By...
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