View-dependent compression of digital hologram based on matching pursuit

Anas El Rhammad; Patrick Gioia; Antonin Gilles; Marco Cagnazzo; Béatrice Pesquet-Popescu

doi:10.1117/12.2315233

24 May 2018 View-dependent compression of digital hologram based on matching pursuit

Anas El Rhammad, Patrick Gioia, Antonin Gilles, Marco Cagnazzo, Béatrice Pesquet-Popescu

Proceedings Volume 10679, Optics, Photonics, and Digital Technologies for Imaging Applications V; 106790L (2018) https://doi.org/10.1117/12.2315233
Event: SPIE Photonics Europe, 2018, Strasbourg, France

Abstract

In this paper we investigate the suitability of Gabor Wavelets for an adaptive partial reconstruction of holograms based on the viewer position. Matching Pursuit is used for a sparse light rays decomposition of holographic patterns. At the decoding stage, sub-holograms are generated by selecting the diffracted rays corresponding to a specific area of visualization. The use of sub-holograms has been suggested in the literature as an alternative to full compression, by degrading a hologram with respect to the directional degrees of freedom. We present our approach in a complete framework for color digital holograms compression and explain, in details, how it can be efficiently exploited in the context of holographic Head-Mounted Displays. Among other aspects, encoding, adaptive reconstruction and selective degradation are studied.

Conference Presentation

Citation Download Citation

Anas El Rhammad, Patrick Gioia, Antonin Gilles, Marco Cagnazzo, and Béatrice Pesquet-Popescu "View-dependent compression of digital hologram based on matching pursuit", Proc. SPIE 10679, Optics, Photonics, and Digital Technologies for Imaging Applications V, 106790L (24 May 2018); https://doi.org/10.1117/12.2315233

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