Title :
A New Method for Phase Measurement on Non-monotonous Fringes
Author :
Sun, W. ; Quan, C. ; Tay, C.J. ; He, X.Y.
Author_Institution :
Dept. of Mech. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
A new technique for phase retrieval from non-monotonous fringes is presented. Continuous wavelet transform is employed to extract unwrapped phase. The ambiguity phase is identified by directly tracking an inflexion points on the unwrapped phase curve. Both simulations and experiments are conducted to validate the feasibility of the proposed method.
Keywords :
image processing; light interferometry; optical information processing; phase measurement; wavelet transforms; ambiguity phase; continuous wavelet transform; inflexion points; nonmonotonous fringes; phase measurement; phase retrieval; unwrapped phase curve; Continuous wavelet transforms; Frequency; Interferometry; Microstructure; Motion measurement; Phase detection; Phase measurement; Signal analysis; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391295
