A Wavefront Integration Algorithm Based on Radial Basis Function for Off-Axis PMD

Sampled points on a measured surface are not evenly spaced rectangular grids but, rather, have more general quadrilateral geometry due to the perspective effect of off-axis configuration, which is extensively utilized in phase measuring deflectometry (PMD). The current procedures for slope-to-wavefront integration results reconstruction errors, impact PMD achieve higher measurement accuracy. Due advantageous properties radial basis function (RBF) irregular sampling and incomplete data, acquired by CCD first realized this paper using ray tracing method, used obtain actual area interval instead defined mathematical formula past when RBF was used. method researched paper. simulation experiment show that robust accuracy algorithm PMD. We further implement measure crystal transparent element where an configuration required.