Invention Publication
- Patent Title: METHOD AND APPARATUS FOR PERFORMING TWO DIMENSION FAST FOURIER TRANSFORM FOR HOLOGRAM PROCESSING
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Application No.: US18481025Application Date: 2023-10-04
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Publication No.: US20240119111A1Publication Date: 2024-04-11
- Inventor: Won Ok KWON , Sang Hoon CHEON
- Applicant: Electronics and Telecommunications Research Institute
- Applicant Address: KR Daejeon
- Assignee: Electronics and Telecommunications Research Institute
- Current Assignee: Electronics and Telecommunications Research Institute
- Current Assignee Address: KR Daejeon
- Priority: KR 20220128909 2022.10.07 KR 20230113663 2023.08.29
- Main IPC: G06F17/14
- IPC: G06F17/14 ; G03H1/08 ; G03H1/16

Abstract:
The present invention relates to a method and apparatus for performing two dimension fast fourier transform for hologram processing. A method for processing a hologram according to an embodiment of the present disclosure may comprise: generating complex data by multiplying the digital image by a random phase value; performing inverse fast fourier transform (IFFT) processing on the complex data; generating pattern information by multiplying a result of the IFFT processing by a quadrant phase; and processing the hologram based on the pattern information. Here, the IFFT processing may comprise a IFFT core operation that performs row-base IFFT and column-base IFFT on the complex data, and a single shift IFFT operation that applies a predefined rule to a result of one or more of the row-based IFFT or the column-based IFFT.
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