LOCAL ADAPTIVE PHASE CORRECTION ALGORITHM FOR 3D PROFILOMETRY SYSTEMS BASED ON PHASE SHIFTING METHOD

It is very popular to reflect sinusoidal phase patterns the surface with technique of demodulation information in order get 3D depth 2D images.The that extracted this method wrapped; so it must be unwrapped.Even though unwrapped; there will some errors because possibility non-sinusoidal characteristics patterns, discontinuities, low sample ratesand technical handicaps (poor calibration and hardware malfunctions etc).To deal those resulting from unwrapping process, are computationally expensive complex methods have been presented.In paper, a fast complexlocal adaptive correction algorithm forfour-step shifting methodis implemented especially for oral applications. The firstly validated by using synthetic data. After validation an optic test system realized few experiments performed real For system, look-up table based techniqueis also getting accurate information. Visual quantitative simulation results presented show performance method.