Hologram with the enlarged depth of field captured by the commercial plenoptic camera

Lingyu Ai; Xiao Shi; Xiaodong Wang

doi:10.1117/12.2580521

7 October 2020 Hologram with the enlarged depth of field captured by the commercial plenoptic camera

Lingyu Ai, Xiao Shi, Xiaodong Wang

Proceedings Volume 11571, Optics Frontier Online 2020: Optics Imaging and Display; 1157113 (2020) https://doi.org/10.1117/12.2580521
Event: Optics Frontiers Online 2020: Optics Imaging and Display (OFO-1), 2020, Shanghai, China

Abstract

A method aiming at depth of field of light field based Fresnel hologram is proposed, which is generated by using the weighted type smart pixel mapping. The conventional integral holograms are generally generated through Fourier transforming the elemental images (EI) of II into hogels. However, the non-uniform compression along optical axial is inevitable within the generation of integral hologram. The weighted type smart pixel mapping is introduced to enhance the depth of field of light field-based Fresnel hologram while keeping a compact image size and being free from moving the lenslet array. The processed hologram can reconstruct the 3D image with the combined light fields of all the integral hologram sequences. Finally, the experiment of real 3D object is numerically and optically conducted. The high matching results among them confirm this work a better performance over the conventional methods.

Citation Download Citation

Lingyu Ai, Xiao Shi, and Xiaodong Wang "Hologram with the enlarged depth of field captured by the commercial plenoptic camera", Proc. SPIE 11571, Optics Frontier Online 2020: Optics Imaging and Display, 1157113 (7 October 2020); https://doi.org/10.1117/12.2580521

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