Acta Optica Sinica, Volume. 29, Issue 12, 3299(2009)
Coding of Tiling Algorithm Hologram of Fractional Fourier and Dynamic Display
In order to reduce complexity of generation of fractional Fourier hologram,according to signal′s fractional Fourier transform and Fresnel diffraction formula,the equivalence relation between them is derived by solving their point spread functions (PSF). So fractional Fourier transform can be transformed into Fresnel diffraction. The object and the hologram plane are sampled by limit of resolution of human eye and size of micromirror of digital micromirror device (DMD). Tiling algorithm is used to generate fractional Fourier hologram,its computation complexity is decreased to O[N2lb(N2/M2)],and a feasible dynamic holographic display is proposed. Finally,the algorithm is verified by DMD holographic display system.
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Han Chao, Wei Sui, Liu Kaifeng. Coding of Tiling Algorithm Hologram of Fractional Fourier and Dynamic Display[J]. Acta Optica Sinica, 2009, 29(12): 3299
Category: Fourier optics and signal processing
Received: Oct. 23, 2008
Accepted: --
Published Online: Dec. 23, 2009
The Author Email: Chao Han (hanchao2006@yahoo.cn)