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Adaptive layer-based computer-generated holograms
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AI
DOI：10.1364/OL.509961.png)
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Abstract
En 中文
We propose a novel, to the best of our knowledge, and fast adaptive layer -based (ALB) method for generating a computer -generated hologram (CGH) with accurate depth information. A complex three-dimensional (3D) object is adaptively divided into layers along the depth direction according to its own non -uniformly distributed depth coordinates, which reduces the depth error caused by the conventional layer -based method. Each adaptive layer generates a single -layer hologram using the angular spectrum method for diffraction, and the final hologram of a complex three-dimensional object is obtained by superimposing all the adaptive layer holograms. A hologram derived with the proposed method is referred to as an adaptive layerbased hologram (ALBH). Our demonstration shows that the desired reconstruction can be achieved with 52 adaptive layers in 8.7 s, whereas the conventional method requires 397 layers in 74.9 s.
Keywords:
3-DIMENSIONAL OBJECTS