METHOD AND APPARATUS FOR PERFORMING FOURIER TRANSFORMATION

    公开(公告)号:US20170091916A1

    公开(公告)日:2017-03-30

    申请号:US15268932

    申请日:2016-09-19

    CPC classification number: G06T5/10 G03H1/0808 G06T2207/10004 G06T2207/20048

    Abstract: Provided is a method for performing a Fourier transformation for generating a computer-generated holographic (CGH) image. The method includes generating first intermediate data by performing a first FFT calculation that relates to coordinates of a pupil of a user with respect to input image data; generating second intermediate data by calculating a light concentration effect correction term for correcting a light concentration effect occurring at the pupil of the user and multiplying the first intermediate data by the light concentration effect correction term; and performing a second FFT calculation that relates to the coordinates of the pupil of the user with respect to the second intermediate data.

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