Open AccessModel mismatch analysis and compensation for modal phase measuring deflectometry
Author(s) -
Lei Huang,
Juan Xue,
Bo Gao,
Chris McPherson,
Jake Beverage,
Mourad Idir
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.000881
Subject(s) - optics , modal , compensation (psychology) , residual , phase (matter) , modal analysis , phase compensation , computer science , physics , acoustics , materials science , phase noise , algorithm , vibration , psychology , quantum mechanics , polymer chemistry , psychoanalysis
The correspondence residuals due to the discrepancy between the reality and the shape model in use are analyzed for the modal phase measuring deflectometry. Slope residuals are calculated from these discrepancies between the modal estimation and practical acquisition. Since the shape mismatch mainly occurs locally, zonal integration methods which are good at dealing with local variations are used to reconstruct the height residual for compensation. Results of both simulation and experiment indicate the proposed height compensation method is effective, which can be used as a post-complement for the modal phase measuring deflectometry.