Proposal for underwater structural analysis using the techniques of ESPI and digital holography

JOSE LUIS VALIN RIVERA, J. M. Monteiro, H. M. Lopes, M. A.P. Vaz, Francisco Palacios, Edison Gonçalves, Gilberto Garcia del Pino, Jorge Ricardo Pérez

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The purpose of this article is to study the application of the holographic interferometry techniques in the structural analysis of submarine environment. These techniques are widely used today, with applications in many areas. Nevertheless, its application in submarine environments presents some challenges. The application of two techniques, electronic speckle pattern interferometry (ESPI) and digital holography, comparison of advantages and disadvantages of each of them is presented. A brief study is done on the influence of water properties and the optical effects due to suspended particles as well as possible solutions to minimize these problems.

Original languageEnglish
Pages (from-to)1139-1144
Number of pages6
JournalOptics and Lasers in Engineering
Volume47
Issue number11
DOIs
StatePublished - 1 Nov 2009

Keywords

  • Digital holography
  • Filter
  • Phase fringe pattern
  • Phase unwrapping
  • Underwater inspection

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