Speckle imaging; Nondestructive testing; Digital holography
Abstract :
[en] Combination of digital holography and speckle correlation for three-dimensional displacement measurement suffers from inaccuracy. Speckle size adjustment and phase error correction during the digital holography process can improve the accuracy of in-plane displacement measurement.
Research center :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Physics
Author, co-author :
Zhao, Yuchen ; Université de Liège > CSL (Centre Spatial de Liège)
A. K. Singh, G. Pedrini, X. Peng, and W. Osten, "Nanoscale measurement of in-plane and out-of-plane displacements of microscopic object by sensor fusion," Optical Engineering 55, 121,722 (2016).
R. Zemmamouche, J.-F. Vandenrijt, A. Medjahed, I. d. Oliveira, and M. P. Georges, "Use of specklegrams background terms for speckle photography combined with phase-shifting electronic speckle pattern interferometry," Optical Engineering 54, 084,110 (2015).
U. Schnars, C. Falldorf, J. Watson, and W. Jptner, Digital Holography and Wavefront Sensing: Principles, Techniques and Applications (Springer Publishing Company, Incorporated, 2014), 2nd ed.
M. Sjödahl and L. R. Benckert, "Electronic speckle photography: analysis of an algorithm giving the displacement with subpixel accuracy," Appl. Opt. 32, 2278-2284 (1993).
A. E. Tippie, "Aberration correction in digital holography," Ph.D. thesis, University of Rochester (2012).
L. Marti-Ĺopez, "Effect of primary aberrations on transverse displacement of laser speckle patterns," Optics & Laser Technology 28, 15-19 (1996).
I. Yamaguchi, J. ichi Kato, S. Ohta, and J. Mizuno, "Image formation in phase-shifting digital holography and applications to microscopy," Appl. Opt. 40, 6177-6186 (2001).
