20 November 1989 A Quasi Heterodyne Holographic Technique And Automatic Algorithms For Phase Unwrapping
Author Affiliations +
Abstract
This paper describes recent developments on methods for quantitative analysis of holographic interferograms. Two areas are considered : the holographic system and the automatic processing of fringe images. The holographic system is based on a quasi heterodyne technique. Methods for reconstructing the image with a single beam are presented. This produces a continuously variable phase difference between the two images of the object. An analysis of the errors has been performed for the reconstructed phase maps. A tiling approach and graph theory have been applied to the fringe field processing problem. This has produced an automatic method for analysing fringes forming an optimum solution for a phase or height map.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. P. Towers, T. R. Judge, P. J. Bryanston-Cross, "A Quasi Heterodyne Holographic Technique And Automatic Algorithms For Phase Unwrapping", Proc. SPIE 1163, Fringe Pattern Analysis, (20 November 1989); doi: 10.1117/12.962786; https://doi.org/10.1117/12.962786
PROCEEDINGS
25 PAGES


SHARE
RELATED CONTENT

Modern Holography
Proceedings of SPIE (January 01 1968)
Hybrid approach to deformation analysis
Proceedings of SPIE (November 30 1994)
Quantitative Holographic Analysis Of Small Components
Proceedings of SPIE (January 01 1986)
Synchronous phase-extraction technique and its applications
Proceedings of SPIE (January 01 1991)

Back to Top