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Phase-shifting digital holographic data compression

Abstract : Modern holography for 3D imaging allows to reconstruct all the parallaxes that are needed for a truly immersive visualisation. Nevertheless, it possess huge amount of data which induces higher transmission and storage requirements. To gain more popularity and acceptance, digital holography demands development of efficient coding schemes that provide significant data compression at low computation cost. Another issue that needs to be tackled when designing holography coding algorithms is interoperability with commonly used formats. In light of this, the upcoming JPEG Pleno standard aims to develop a standard framework for the representation and exchange of new imaging modalities such as holographic imaging while maintaining backward compatibility with the legacy JPEG decoders. This paper summarize the early work on lossy compression of computer graphic holograms and analyse the efficiency of additional methods that may exhibit good satisfactory coding performance while considering the backward compatibility with legacy JPEG decoders. To validate our findings, the results of our tests are shown and interpreted. Finally, we also outline the emerging trends for future researches.
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Submitted on : Friday, January 10, 2020 - 11:12:32 AM
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Meha Hachani, Azza Ouled Zaid, Frédéric Dufaux. Phase-shifting digital holographic data compression. Journal of Optics, Springer, 2019, 48 (3), pp.412-428. ⟨10.1007/s12596-019-00538-w⟩. ⟨hal-02158838⟩

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