1 April 1988 Optical Hough And Fourier Processors For Product Inspection
Author Affiliations +
Abstract
Coherent optical processors for product inspection are discussed, and data from a case study are presented. An optical processor that produces both Fourier and Hough transform data is presented. The Fourier transform data are wedge/ring sampled to produce in-plane distortion-invariant features to determine the product's attribute (good or defective) and its orientation. Hough transform data are used for new quantitative mensuration information on good products. In one case, optical Hough transforms are quantitatively shown to yield more consistent results than do digital realizations.
David P. Casasent, David P. Casasent, Jeffrey Richards, Jeffrey Richards, } "Optical Hough And Fourier Processors For Product Inspection," Optical Engineering 27(4), 274258 (1 April 1988). https://doi.org/10.1117/12.7976668 . Submission:
JOURNAL ARTICLE
8 PAGES


SHARE
RELATED CONTENT

Review of pulsed phase thermography
Proceedings of SPIE (May 11 2015)
Estimation of rock face stability
Proceedings of SPIE (October 02 1994)
Optical Color Image Processing For Product Inspection
Proceedings of SPIE (March 06 1989)
An Optical Processor For Product Inspection
Proceedings of SPIE (March 11 1988)

Back to Top