基于FPGA技术的计算全息研究  

Research of computer-generated hologram based on FPGA technology

作　　者：简献忠[1] 张晗[1] 范建鹏[1] 周志刚[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《激光技术》2012年第1期26-28,32,共4页Laser Technology

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。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.

关 键 词：全息 并行处理 循环迭代算法 光强分布 

分 类 号：O438.1[机械工程—光学工程]