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|Title:||Effect of phase-shifting error on deformation evaluation using phase-shifting digital holography||Authors:||Xin, K.
|Issue Date:||2006||Citation:||Xin, K.,Xiaoyuan, H.,Tay, C.J.,Quan, C. (2006). Effect of phase-shifting error on deformation evaluation using phase-shifting digital holography. Key Engineering Materials 326-328 I : 27-30. ScholarBank@NUS Repository.||Abstract:||Phase-shifting technique is an effect way to suppress the zero order diffraction and the conjugate term in digital holography. However the phase-shifting error will influence inevitably the evaluation precision in practice operation. In this paper, the deformation evaluation errors by means of two kinds of four-step phase-shifting algorithms, which are in common use in digital holography, are analyzed and compared by computer simulation. In addition, the phase-shifting errors may cumulate or not according to different phase-shifting techniques, and both cases are considered in this paper. The results based on the digital in-line holography show that the two four-step phase-shifting algorithms possess different sensitivity to the phase-shifting errors, and the preferable one, which is more immune to the phase-shifting errors, is educed in conclusion.||Source Title:||Key Engineering Materials||URI:||http://scholarbank.nus.edu.sg/handle/10635/73396||ISSN:||10139826|
|Appears in Collections:||Staff Publications|
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