IIAE CONFERENCE SYSTEM, The 1st IEEE/IIAE International Conference on Intelligent Systems and Image Processing 2013 (ICISIP2013)

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Iterative Phase Difference Constraint Method for the Speckle Elimination of Fresnel Kinoforms
Toshinori Hora, Shiyuan Yang, Fenghui Yao

Last modified: 2013-10-01

Abstract


Speckle noise is a serious problem in the reconstruction of computer-generated holograms (CGHs). Especially for a kinoform (a phase-only CGHs), the speckles lead to a large reconstruction error and it is important to eliminate the speckles. Phase difference constraint method has been proposed as a method for speckle elimination(1). However, simulation of phase difference constraint method is carried out only in the Fourier kinoform. But, considering the optical reconstruction, it preferred to use a Fresnel kinoform. Therefore, we carried out the simulation in Fresnel kinoform. We carried out the simulation in the three kinds of images “F”, “I”, “Y”, and the speckle elimination has been confirmed in all images. Therefore, the phase difference constraint method is also useful in the Fresnel kinoform was confirmed.

Keywords


fresnel kinoform, speckle elimination.

References


(1) Toshinori Hora,Shiyuan Yang,Seiichi Serikawa : "Iterative phase difference constraint method for the speckle elimination of kinoforms", 2012

(2) H. Aagedal, M. Schmid, T. Beth, S. Teiwes, and F. Wyrowski, "Theory of speckles in diffractive optics and its application to beam shaping," J. Mod. Opt. No. 43, 1409 - 1421 (1996).

(3) H. Akahori, “Spectrum leveling by an iterative algorithm with a dummy area for synthesizing the kinoform,” Appl. Opt., Vol. 25, No. 5, 802-811 (1986).

(4) R. Braer, F. Wyrowski, and O. Bryungdahl, “Diffusers in digital holography”, J.Opt.Soc.Am.A, Vol. 8 No. 3, 572-578(1991).

(5) F. Wyrowsky and O. Bryngdahl, “Speckle-free reconstruction in digital holography,” J. Opt. Soc. Am. A, Vol. 6, No. 8, 1171-1170 (1989).

(6) Shiyuan Yang and Hiroaki Takajo, “Speckle reduction of kinoform reconstruction utilizing the 2π ambiguity of image phase differences,” Optical Review, Vol. 12, No. 2, 93-96 (2005).


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