Advertisement

Fringe 2013 pp 103-108 | Cite as

Single Shot Shape Evaluation Using Dual-Wavelength Holographic Reconstructions and Regularization

  • Per Bergström
  • Davood Khodadad
  • Emil Hällstig
  • Mikael Sjödahl

Abstract

The aim of this work is to evaluate the shape of a free form object using single shot digital holography. The digital holography results in a gradient field and wrapped phase maps representing the shape of the object. The task is then to find a surface representation from this data which is an inverse problem. To solve this inverse problem we are using regularization with additional shape information from the CAD-model of the measured object.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Bergström, P., Rosendahl, S., Gren, P., Sjödahl, M.: Shape verification using dual-wavelength holographic interferometry. Optical Engineering 50(10), 101503-101503-7 (2011)Google Scholar
  2. 2.
    Sjödahl, M., Hällstig, E., Khodadad, D.: Multi-spectral speckles: theory and applications. In: Proc. of SPIE, Speckle 2012: V International Conference on Speckle Metrology, vol. 8413 (2012)Google Scholar
  3. 3.
    Khodadad, D., Hällstig, E., Sjödahl, M.: Shape reconstruction using dual wavelength digital holography and speckle movements. In: Proc. of SPIE, Optical Measurement Systems for Industrial Inspection VIII, vol. 87880I (2013)Google Scholar
  4. 4.
    Khodadad, D., Hällstig, E., Sjödahl, M.: Dual wavelength digital holographic shape measurement using speckle movements and phase gradients. Optical Engineering (accepted 2013)Google Scholar
  5. 5.
    Wei, T., Klette, R.: Depth recovery from noisy gradient vector fields using regularization. In: Petkov, N., Westenberg, M.A. (eds.) CAIP 2003. LNCS, vol. 2756, pp. 116–123. Springer, Heidelberg (2003)CrossRefGoogle Scholar
  6. 6.
    Besl, P.J., McKay, N.D.: A method for registration of 3-d shapes. IEEE Transaction of Pattern Analysis and Machine Intelligence 14(2), 239–256 (1992)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Per Bergström
    • 1
  • Davood Khodadad
    • 1
  • Emil Hällstig
    • 2
  • Mikael Sjödahl
    • 1
  1. 1.Department of Engineering Sciences and MathematicsLuleå University of TechnologyLuleåSweden
  2. 2.Optronic Partner dp ABSkellefteåSweden

Personalised recommendations