摘要
结合二维平面图像的特点,提出了用快速傅里叶变换制作菲涅耳计算全息图的快速算法:将菲涅耳衍射光波表示成傅里叶变换的形式,编写计算程序,用快速傅里叶变换进行计算;并研究了傅里叶变换算法中衍射场的取样间隔与计算全息系统取样间隔的关系,给出了理论分析与实验结果.
Based on the feature of two dimensional image, a new algorithm of Fresnel computer-generated hologram（CGH） is proposed. Firstly, the object beam of Fresnel diffraction is formulated with fast-Fouriertransform, then, the computing program is compiled, the computer-generated Fresnel hologram is calculated by computer using Fast-Fourier-transform, and the sample period of computer generated hologram is researched. The principle and experiment of the technique are given.
出处
《厦门理工学院学报》
2008年第3期57-60,共4页
Journal of Xiamen University of Technology
基金
厦门市科技计划指导性项目(3502Z20077009)
关键词
计算全息
傅里叶变换
空间频率
取样间隔
computer generated hologram
Fourier transform
spatial frequency
sampling period
