Adaptive Phase Error Suppression Concerning 3D surface Deformation Measurement on Color Digital Fringe Projection Profilometry

3D surface measurement based on phase-shifting profilometry (PSP) has been actively developed in recent years. Three color channels of RGB that are modulated to generate a one-shot PSP method is concept digital fringe pattern (CDFPP). The CDFPP promising technique for the imaging profile dynamic deformation if several phase errors can be suppressed. This work proposes processing scheme error suppression schemes (PESS) retrieving sinusoidal and normalization using channel. PESS consists tunable bandpass filtering (BPF) followed by normalization. initial BPF function defined smoothing spline data set frequency power spectrum from baseline image. predefine could during process considering each frame's condition channel mapping. corrected images then normalized imbalance, shift calculated conventional three-step PSP. For evaluation, performed reconstruct simulator membrane four different static profiles tested observe continuous deformation. suppress less than 30% absolute successfully low-frequency with minimizing errors.