Share Email Print
cover

Proceedings Paper

A Quasi Heterodyne Holographic Technique And Automatic Algorithms For Phase Unwrapping
Author(s): D. P. Towers; T. R. Judge; P. J. Bryanston-Cross
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper 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.

Paper Details

Date Published: 20 November 1989
PDF: 25 pages
Proc. SPIE 1163, Fringe Pattern Analysis, (20 November 1989); doi: 10.1117/12.962786
Show Author Affiliations
D. P. Towers, Warwick University (England)
T. R. Judge, Warwick University (England)
P. J. Bryanston-Cross, Warwick University (England)


Published in SPIE Proceedings Vol. 1163:
Fringe Pattern Analysis
Graeme T. Reid, Editor(s)

© SPIE. Terms of Use
Back to Top