| 基于GPU的数字全息实时再现系统设计及实验研究 |
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| 引用本文： | 朱竹青,孙敏,聂守平,冯少彤,丁鹤平,戴万珍.基于GPU的数字全息实时再现系统设计及实验研究[J].光电子．激光,2012(2):325-329. |
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| 作者姓名： | 朱竹青 孙敏 聂守平 冯少彤 丁鹤平 戴万珍 |
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| 作者单位： | 南京师范大学物理与科学技术学院光电技术江苏省重点实验室;南京理工大学理学院;南京师范大学物理与科学技术学院光电技术江苏省重点实验室;南京师范大学物理与科学技术学院光电技术江苏省重点实验室;南京师范大学物理与科学技术学院光电技术江苏省重点实验室;南京师范大学物理与科学技术学院光电技术江苏省重点实验室 |
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| 基金项目： | 江苏省自然科学基金(BK2009400);江苏省高校自然科学基金(09KJA140002);江苏省光电技术重点实验室开放基金(1640703061-04)资助项目 |
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| 摘 要： | 设计了基于图形处理单元(GPU,graphic processing unit)的数字全息实时再现(DHRTR,digital holography real-time reconstruction)系统,并以旋转骰子为研究对象,实验验证了DHRTR系统的有效性。相对CPU,GPU本身含有许多流处理器,通过并行运算可大大缩短数字全息图再现运算时间。利用统一计算设备架构(CUDA)的运算平台,编写了基于GPU处理器的实时再现软件,在对动态全息图进行连续采集的同时,即时对全息图进行再现,并实时显示再现结果。实验结果表明,本文系统可以实现平均帧速为20 frame/s、大小为512 pixels×512 pixels的数字全息图的实时再现。
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| 关 键 词： | 数字全息 实时再现算法 图形处理单元 CCD帧速 |
Design and realization of digital holography real-time reconstruction system based on GPU |
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| ZHU Zhu-qing,SUN Min,NIE Shou-ping,FENG Shao-tong,DING He-ping and DAI Wan-zhen.Design and realization of digital holography real-time reconstruction system based on GPU[J].Journal of Optoelectronics·laser,2012(2):325-329. |
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| Authors: | ZHU Zhu-qing SUN Min NIE Shou-ping FENG Shao-tong DING He-ping and DAI Wan-zhen |
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| Affiliation: | Key Laboratory of Optoelectronic Technology of Jiangsu Province,School of Physical Science and Technology,Nanjing Normal University,Nanjing 210046,China;School of Science,Nanjing University of Science and Technology,Nanjing 210094,China;Key Laboratory of Optoelectronic Technology of Jiangsu Province,School of Physical Science and Technology,Nanjing Normal University,Nanjing 210046,China;Key Laboratory of Optoelectronic Technology of Jiangsu Province,School of Physical Science and Technology,Nanjing Normal University,Nanjing 210046,China;Key Laboratory of Optoelectronic Technology of Jiangsu Province,School of Physical Science and Technology,Nanjing Normal University,Nanjing 210046,China;Key Laboratory of Optoelectronic Technology of Jiangsu Province,School of Physical Science and Technology,Nanjing Normal University,Nanjing 210046,China |
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| Abstract: | The GPU-based digital holography real-time reconstruction(DHRTR) system is designed and experimentally verified by using a rotated dice as the object of study.Compared with CPU,the graphic processing unit(GPU),with lots of stream processors,can greatly shorten the reconstruction time of digital hologram.The real-time reconstruction software is programmed based on GPU with the CUDA platform,which can continuously record dynamic holograms and meanwhile the holograms are reconstructed and then displayed.The experimental results demonstrate that the DHRTR system can obtain reconstructed images in average 20 frame/s from holograms with size of 512 pixels×512 pixels. |
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| Keywords: | digital holography real-time reconstruction algorithm graphic processing unit(GPU) CCD frame rate |
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