Speckle reduction using angular spectrum interleaving for triangular mesh based computer generated hologram

Speckle reduction using angular spectrum interleaving for triangular mesh based computer generated hologram

We propose a method that eliminates speckle artifact in the reconstruction of triangular mesh based computer generated holograms. The proposed method generates a number of holograms with different sets of interleaved plane carrier waves. The generated holograms are displayed sequentially with time-m...

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Veröffentlicht in:Optics express 2017-11, Vol.25 (24), p.29788-29797
Hauptverfasser: Ko, Seok-Beom, Park, Jae-Hyeung
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container_title Optics express
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creator Ko, Seok-Beom
Park, Jae-Hyeung
description We propose a method that eliminates speckle artifact in the reconstruction of triangular mesh based computer generated holograms. The proposed method generates a number of holograms with different sets of interleaved plane carrier waves. The generated holograms are displayed sequentially with time-multiplexing, achieving speckle-free reconstruction without sacrificing the viewing angle or depth of focus. The proposed method is verified experimentally using viewing-window type holographic display setup. The experimental results indicate that the proposed method can achieve speckle-free reconstruction with smaller number of the time-multiplexing than conventional temporal speckle averaging techniques.
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title Speckle reduction using angular spectrum interleaving for triangular mesh based computer generated hologram
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