The invention provides 16-step dual-frequency grating phase shift profilometry capable of absolutephase unwrapping in the three-dimensional sensor technology.
本发明是三维传感技术中一种可绝对位相展开的十六步双频光栅相移轮廓 术。
2
Through the absolutephase measurement of the master object, different inverse fringes are generated for the different projectors placed in different directions.
通过测量标准样品的绝对相位，为不同角度放置的投影器产生不同的反向条纹。
3
A simple calibration model was developed for digital fringe projection profilometry(DFPP) based on absolutephase extraction and space mapping techniques to simplify the measuring system.