| 基于FPGA技术的计算全息研究 |
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| 引用本文： | 简献忠,张晗,范建鹏,周志刚.基于FPGA技术的计算全息研究[J].激光技术,2012,36(1):26-28. |
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| 作者姓名： | 简献忠 张晗 范建鹏 周志刚 |
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| 作者单位： | 1.上海理工大学光电信息与计算机工程学院, 上海 200093 |
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| 摘 要： | 为了提高计算全息图的运算速率,根据现场可编程门阵列技术的并行处理特性,提出了一种基于现场可编程门阵列技术的计算全息实现方法.利用该方法分别制作了点光源和2维图像的菲涅耳计算全息图,并由所生成的全息图再现出原始图像.结果表明,用现场可编程门阵列技术实现分辨率为50×50的全息图的运算速度是传统MATLAB实现的165倍.该研究结果对实现计算全息的实时性具有重要的意义.
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| 关 键 词： | 全息 并行处理 循环迭代算法 光强分布 |
| 收稿时间： | 2011/4/27 |
Research of computer-generated hologram based on FPGA technology |
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| JIAN Xian-zhong
,
ZHANG Han
,
FAN Jian-peng
,
ZHOU Zhi-gang.Research of computer-generated hologram based on FPGA technology[J].Laser Technology,2012,36(1):26-28. |
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| Authors: | JIAN Xian-zhong ZHANG Han FAN Jian-peng ZHOU Zhi-gang |
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| Affiliation: | (School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China) |
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| Abstract: | A method based on parallel processing of field programmable gate array(FPGA)technology was put forward to accelerate the computation speed of computer-generated hologram (CGH). Its Fresnel CGH of a point and two-dimension images were produced particularly and the numerical reconstruction of CGH was realized. The experimental results show that the computational speed of a resolution of 50×50 hologram based on FPGA is 165-fold of traditional MATLAB implementation. The study is helpful for implementing real-time CGH. |
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| Keywords: | holography parallel processing loop iterative algorithm intensity distribution |
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