计算机制半周视彩色彩虹全息体视图  

Computer Generated Half-Circle Viewable Color Rainbow Holographic Stereogram

作　　者：许富洋[1,2] 杨鑫 刘子陌 宋强 马国斌 任志君 Xu Fuyang;Yang Xin;Liu Zimo;Song Qiang;Ma Guobin;Ren Zhijun(Institute of Information Optics,College of Physics and Electronic Information Engineering,Zhejiang Normal University,Jinhua,Zhejiang 321004,China;Key Laboratory of Optical Information Detecting and Display Technology of Zhejiang Province,Jinhua,Zhejiang 321004,China;Lochn Optics-Micro Nano Photonics Research Center,Shenzhen,Guangdong 518000,China)

机构地区：[1]浙江师范大学物理与电子信息工程学院信息光学研究所,浙江金华321004 [2]浙江省光信息检测与显示技术研究重点实验室,浙江金华321004 [3]珑璟光电-微纳光学研究中心,广东深圳518000

出　　处：《光学学报》2022年第4期46-52,共7页Acta Optica Sinica

基　　金：国家自然科学基金(62005006);浙江省光信息检测与显示技术研究重点实验室开放课题。

摘　　要：全息体视图(HS)是一种可加速计算的全息图,能够实现单色全息三维(3D)显示,将其与彩色彩虹全息相结合并实现允许多人围观的半周视彩色彩虹全息3D显示具有实际应用价值。在HS计算原理的基础上,设计单元全息图侧视角及视场角等参数,通过频域复用获得包含红色、绿色和蓝色信息的单元全息图的频谱,对频谱进行傅里叶逆变换后取实部得到该单元全息图,所有单元全息图的组合形成完整的半周视彩色彩虹HS。通过并行加速计算的方法实现分辨率为200800 pixel×200800 pixel、尺寸为64 mm×64 mm的高分辨率半周视彩色彩虹HS仅需15.15 min。采用反射照明的方式进行光学再现,实现了允许多人同时观看的清晰的彩色全息3D显示,其有望应用于3D军事地图、3D沙盘等领域。Holographic stereogram(HS)is a kind of hologram that can accelerate calculation,which can realize the monochromatic holographic three-dimensional(3 D)display,and combining it with the color rainbow hologram and realizing the half-circle viewable color rainbow holographic 3 D display which can be watched by many people have practical application value.Based on the HS calculation principle,the side angle of view and the field of view of the elemental hologram are designed,and the spectrum of the elemental hologram containing red,green,and blue information through frequency domain multiplexing is achieved.The elemental hologram is obtained by taking the real part of the complex amplitude from the inverse Fourier transform of the spectrum.The high-resolution half-circle viewable color rainbow HS can be achieved by combining all elemental holograms.A high resolution half-circle viewable color rainbow HS with a resolution of 200800 pixel×200800 pixel and a size of 64 mm×64 mm is calculated only within 15.15 min by parallel acceleration.Reflective illumination is used for optical reproduction and a clear color holographic 3 D display that can be viewed by multiple people is achieved,which is expected to be applied to 3 D military maps,3 D sand tables,and other fields.

关 键 词：全息 彩色全息三维显示 周视彩色彩虹全息三维显示 全息体视图 

分 类 号：O438.1[机械工程—光学工程]