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- W3114805260 abstract "Herein, we propose a band-limited double-phase method to improve the quality of reconstructed images encoded by double-phase holograms (DPHs) derived from complex-amplitude light waves. Although the quality of images produced by DPHs was improved compared to that of conventional holographic images, it still suffered from degradation because of the spatial shifting noise generated during the conversion from complex-amplitude holograms to phase-only holograms. The proposed method overcomes this shortcoming by defining a band-limiting function according to the spatial distribution of DPHs in the frequency domain to remove the specific spatial frequency components severely affected by the spatial shifting of DPHs. The sharpness of images reconstructed from band-limited DPHs with appropriate optical filtering showed an improvement of 36.84% in simulations and 51.67% in experiments evaluated by 10-90% intensity variation." @default.
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- W3114805260 date "2021-01-14" @default.
- W3114805260 modified "2023-10-06" @default.
- W3114805260 title "Band-limited double-phase method for enhancing image sharpness in complex modulated computer-generated holograms" @default.
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- W3114805260 doi "https://doi.org/10.1364/oe.414299" @default.
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