摘要
现阶段的全息技术研究中,计算机制全息图以其灵活、易操作得到了广泛的研究,然而立体场景的全息图制作及再现仍然没有一种理想的方法。本文从菲涅耳衍射理论出发,分析两种衍射光场仿真的方法,结合相息图的制作原理,提出一种立体场景全息图的计算机生成方法,并借助CUDA并行计算技术实现全息图的快速生成。以包含4个深度的场景为例,证明该算法有效可行,并行计算可使全息图的生成速度提高4倍以上。
In the current research on holography,CGH（Computer-Generated Hologram）,as for flexibility and ease of operation,has been discussed widely.However,there is not any ideal method for CGH and reconstruction of 3-D scene.This paper analyzes two methods to simulate the diffraction field,proposes a CGH method for 3-D scene,and accelerates the speed with the parallel computing technology.Taking the scene with four different depths as an example,the simulation results show that the algorithm is effective and feasible and the parallel computing technology accelerates the speed for four times.
出处
《计算机与现代化》
2012年第4期171-174,222,共5页
Computer and Modernization
基金
国家自然科学基金资助重点项目(608320036)
国家质检公益性行业科研专项经费资助项目(201110233)
关键词
计算机全息图
菲涅耳衍射
波面重建
数值计算
并行计算
computer-generated hologram
Fresnel diffraction
reconstruction
integral calculation
parallel computing
