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Fast fringe pattern phase demodulation using FIR Hilbert transformers

Gdeisat, M and Burton, DR and Lilley, F and Arevalillo-Herraez, M (2016) Fast fringe pattern phase demodulation using FIR Hilbert transformers. OPTICS COMMUNICATIONS, 359. pp. 200-206. ISSN 0030-4018

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Abstract

This paper suggests the use of FIR Hilbert transformers to extract the phase of fringe patterns. This method is computationally faster than any known spatial method that produces wrapped phase maps. Also, the algorithm does not require any parameters to be adjusted which are dependent upon the specific fringe pattern that is being processed, or upon the particular setup of the optical fringe projection system that is being used. It is therefore particularly suitable for full algorithmic automation. The accuracy and validity of the suggested method has been tested using both computer-generated and real fringe patterns. This novel algorithm has been proposed for its advantages in terms of computational processing speed as it is the fastest available method to extract the wrapped phase information from a fringe pattern.

Item Type: Article
Uncontrolled Keywords: 0205 Optical Physics, 0906 Electrical And Electronic Engineering
Subjects: Q Science > QA Mathematics > QA76 Computer software
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: General Engineering Research Institute
Publisher: ELSEVIER SCIENCE BV
Related URLs:
Date Deposited: 14 Mar 2016 15:54
Last Modified: 02 Oct 2016 23:50
DOI or Identification number: 10.1016/j.optcom.2015.09.084
URI: http://researchonline.ljmu.ac.uk/id/eprint/3225

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