Surface inspection using Radon transform of projected grating patterns
Document Type
Article
Publication Date
1-1-2001
Abstract
Carrier gratings are generally used to carry the spatial information about surfaces to be inspected and spatial information demodulated using phase shifting methods. Phase shifting methods need more than one image to demodulate the phase information and hence the spatial information of the object. In this paper we propose a method to inspect surfaces by projecting grating patterns on surfaces and Radon transforming the images. Fringe inclination is used as an estimator for locating surface defects.
Identifier
0035769361 (Scopus)
Publication Title
Proceedings of SPIE the International Society for Optical Engineering
External Full Text Location
https://doi.org/10.1117/12.447326
ISSN
0277786X
First Page
66
Last Page
73
Volume
4596
Recommended Citation
Krishnakumar, V. and Asundi, A. K., "Surface inspection using Radon transform of projected grating patterns" (2001). Faculty Publications. 15364.
https://digitalcommons.njit.edu/fac_pubs/15364
