RT Journal Article
T1 Comparison of carrier removal methods in the analysis of TV holography fringes by the Fourier transform method
A1 Fernández Álvarez, Antonio
A1 Kaufmann, G. H
A1 Fernández Doval, Ángel Manuel
A1 Blanco García, Jesús
A1 Fernández Fernández, José Luis
K1 3311.11 Instrumentos Opticos
K1 2209.07 Holografía
K1 2209.90 Tratamiento Digital Imágenes
AB Carrier removal is a key step in the Fourier transform method (FTM) of fringe pattern analysis because it can give rise to significant errors in the recovered phase. The existing methods of fringe carrier removal in the FTM are reviewed and a comparison of three different methods, translation of the sidelobe to the frequency origin, least-squares fit and subtraction of the phase of the undeformed carrier fringes, are presented. Computer-generated fringe patterns are used to determine the differences between the original and the retrieved phase distributions. Several figures of merit are proposed to assess the performance of the mentioned methods. Experimental fringe patterns, obtained by double-pulsed-subtraction TV holography, are analyzed by the methods considered here, and the retrieved phase distributions are also compared.
PB Optical Engineering
SN 00913286
YR 1998
FD 1998-11-01
LK http://hdl.handle.net/11093/1255
UL http://hdl.handle.net/11093/1255
LA eng
NO Optical Engineering, 37(11): 2899-2905 (1998)
DS Investigo
RD 23-sep-2023