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US09323218B2 Generating full-parallax digital holograms 有权
生成全视差数字全息图

Generating full-parallax digital holograms
Abstract:
Techniques for efficiently generating full parallax 3-D holographic images of a 3-D real or synthetic object scene are presented. A holographic generator component (HGC) can receive a real object scene or generate a synthetic object scene. The HGC can downsample the scene by a defined downsampling factor and generate, from the downsampled scene, an intermediate object wavefront recording plane (WRP) that can be placed in close proximity to the scene. The HGC can expand and interpolate the WRP to generate the holographic images. The HGC can decompose a scene into polyphase image components (PICs), generate a WRP for the image components, sum the WRP of the PICs, and expand and interpolate the WRP to generate holographic images of the scene. The HGC can utilize look-up tables to store and use wavefront patterns of each region of an image to facilitate reducing computational operations in generating the holographic images.
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