Two-source method in digital holographic contouring

J. R. Pérez, E. Gonçalves, R. De Souza, F. F. Palácios, M. Muramatsu, J. Valin, M. R.R. Gesualdi

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations


Using digital holography the two-source method was applied for shape determination of a groove on an Aluminum plate. The electric component of the electromagnetic field, on the image plane, was reconstructed using the Fresnel-Kirchoff integral and Fourier method and digital holograms were captured changing the fiber optic position with a micro positioner. The phase interferogram was filtered by means of the sine/cosine filter and for the unwrapping process was applied the branch-cut method. This object present real discontinuity and the experimental results agree with the expected one, with high quality intensity image. The quasi-3D phase presentation shows the object shape.

Original languageEnglish
Article number267
Pages (from-to)1422-1427
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberPART 3
StatePublished - 2004
Externally publishedYes
EventRIAO/OPTILAS 2004: 5th Iberoamerican Meeting on Optics, and 8th Latin American Meeting on Optics, Lasers, and their Applications; ICO Regional Meeting - Porlamar, Venezuela, Bolivarian Republic of
Duration: 3 Oct 20048 Oct 2004


  • Digital holography
  • Phase interferogram
  • Surface contouring


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