RT Journal Article
T1 Direct demodulation of closed-fringe interferograms based on active contours
A1 Quiroga Mellado, Juan Antonio
A1 Vargas Balbuena, Javier
A1 Belenguer Dávila, Tomás
AB We demonstrate a method to directly demodulate closed-fringe interferograms using a kind of active contour called a snake. This method can be used to demodulate a single closed-fringe interferogram when its background illumination and/or contrast terms have a spatial frequency similar to the spatial frequency of the equivalent normalized interferogram. Among other cases, this problematic usually appears in interferometry when spurious reflection appears in the interferogram. In these situations, typical Fourier-based methods are of no help. We show a set of simulations and experimental results that prove the effectiveness of the proposed method.
SN 0146-9592
YR 2010
FD 2010-11-01
LK https://hdl.handle.net/20.500.14352/43964
UL https://hdl.handle.net/20.500.14352/43964
LA eng
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NO © 2010 Optical Society of America
DS Docta Complutense
RD 29 abr 2024