CPC G03H 1/0891 (2013.01) [G03H 2001/0088 (2013.01); G03H 2001/0825 (2013.01); G03H 2210/30 (2013.01)] | 24 Claims |
1. A method of processing a three-dimensional holographic image, the method comprising:
obtaining a plurality of depth images for a predetermined number of depth layers from depth data of a three-dimensional object, each depth image from among the plurality of depth images having a predetermined resolution and corresponding to a respective depth layer from among the predetermined number of depth layers;
dividing each depth image from among the plurality of depth images into a predetermined number of sub-images to be processed by respective processing units from among a plurality of processing units;
obtaining a plurality of interference patterns of a plurality of computer-generated hologram (CGH) patches in a CGH plane, each CGH patch from among the plurality of CGH patches corresponding to at least one respective sub-image from among the predetermined number of sub-images, by performing a Fourier transform on object data included in the respective sub-image to calculate an interference pattern in the CGH plane corresponding to the respective sub-image; and
generating a CGH of the three-dimensional object using the obtained plurality of interference patterns,
wherein the obtaining the plurality of interference patterns comprises:
determining, with respect to each depth image from among the plurality of depth images, a sub-image from among the predetermined number of sub-images in which the object data is present, as a region of interest (ROI); and
obtaining the plurality of interference patterns by performing the Fourier transform on the determined sub-image and refraining from performing the Fourier transform on remaining sub-images from among the predetermined number of sub-images, and
wherein the CGH of the three-dimensional object is generated based on the sub-image corresponding to the ROI, without being based on another sub-image from among the predetermined number of sub-images that does not correspond to the ROI.
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