噪音(视频)
傅里叶变换
算法
衍射
反向
图像(数学)
材料科学
离散傅里叶变换(通用)
图像噪声
二进制数
光学
计算机科学
平面(几何)
分数阶傅立叶变换
计算机视觉
傅里叶分析
物理
数学
几何学
数学分析
算术
作者
Jong-Hyun Lee,Sungjae Park,Jongha Park,Shin-Woong Park,Hwi Kim
出处
期刊:The Japan Society of Applied Physics
日期:2018-09-18
摘要
Diffractive Optical Element (DOE) is a device forming a specific diffraction image on the image plane. Generally, it is calculated by iterative Fourier Transform Algorithm (IFTA) in the inverse direction from the three-dimensional information of the target image and incident beam. However, there is a problem that DC noise occurs due to various factors in conventional design method of DOE, and a lot of researches have focused on them [1, 2]. In this paper, we analyze the cause of DC noise from DOE and propose the noise reducing method when the designing the DOE. Moreover, we can recognize the conjugation noise in the binary DOE can be reduced using this method.
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