Phase retrieval and phase derivative determination in digital holography

C. Quan, D. Balakrishnan, Wen Chen, C. J. Tay

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)

Abstract

With the advent of CCD camera and the rapid development of computer technology, digital holographic technique has recently attracted much attention from various research fields. This paper presents spatial phase retrieval techniques in digital holography. In the spatial domain, a novel method using the concept of complex phasor is proposed to determine the phase difference map in digital holography. A simple method based on finite difference is also proposed to compute high quality phase derivatives. Based on a deformation phase map obtained by the complex phasor method, slope, curvature and twist maps can be determined. Unwrapped derivative maps can be determined directly from a wrapped phase map without any phase unwrapping process. Simulation and experimental results demonstrate that the proposed method has high measurement accuracy and can effectively determine high resolution phase derivative with less computational effort. It is shown that the proposed techniques can effectively and accurately overcome theoretical and application problems in digital holography. 2014.
Original languageEnglish
Title of host publicationAdvancement of Optical Methods in Experimental Mechanics - Conference Proceedings of the Society for Experimental Mechanics Series
Pages241-250
Number of pages10
Volume3
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event2013 Annual Conference on Experimental and Applied Mechanics - Lombard, IL, United States
Duration: 3 Jun 20135 Jun 2013

Conference

Conference2013 Annual Conference on Experimental and Applied Mechanics
Country/TerritoryUnited States
CityLombard, IL
Period3/06/135/06/13

Keywords

  • Digital holographic interferometry
  • Numerical differentiation
  • Numerical reconstruction
  • Phase derivative determination
  • Phase retrieval

ASJC Scopus subject areas

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

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