基于电子全息的裸眼三维图像实时显示研究

项目名称： 基于电子全息的裸眼三维图像实时显示研究

项目编号： No.61271310

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 杨光临

作者单位： 北京大学

项目金额： 80万元

中文摘要： 电子全息三维显示是全息技术和电子显示技术相结合的产物，是以电子形式来表示物体的3D信息。课题目的是研究电子全息3D图像实时裸眼显示机理，包括数字全息记录与再现、3D图像编码高速传输和裸视3D图像实时显示。 课题建立在一种将电子学和傅里叶光学紧密结合的基础上，来克服全光学系统或全电子学系统的缺陷，研究涉及多学科。采用高精度光敏电子元件作记录介质，不需要多个摄像头和光全息的繁琐后续处理，适合记录运动物体。采用液晶显示－空间光调制器（LCD-SLM）灵活控制信号，将信号所载荷的信息恰当的写进入射光波中，对数子全息光波二维分布的相位、振幅、频率、偏振态等特性进行空间和时间的调制，提高了传输速度和显示质量。采用GPU并列传输和复函数的编码合成计算，改善3D图像实时显示的解像度和对比度。 该研究对于电子全息高分辨率显微、裸视立体电视、三维人机交互通信以及国防等科学领域有着重要意义和应用价值。

中文关键词： 电子全息；三维传输；压缩编码；三维重构；立体显示

英文摘要： Electron holographic 3D image display is consist of the holography and the electron display technology, is applied an electronic way to represent the 3D information of objects. This research goal is to research the electron holographic naked-eye 3D image real-time display mechanism, including the recording and reconstruction of digital holography, the 3D image encoding/decoding and high-speed transmission, and the naked-eye 3D image real-time display. In order to conquer the solitary shortage of the optic system or the electron system, this project is based on the combination of electronics and Fourier optics, and relates many research fields. Applied the highly accurate photosensitive electronic elements as recording material, do not need the many cameras and heavy post-processing of optical holography, and this method is suitable for recording moving objects. In experiments, Applied Liquid crystal display-spatial light modulator (LCD-SLM) to control signal flexibly, the carrier wave signal of the 3D information will be written into incident light wave appropriately. Meanwhile, the space-and-time of two-dimensional distributed characteristics of light waves in digital holography is modulated, such as phase, amplitude, frequency, polarization state and so on, it can improve the 3D information transmission speed

英文关键词： Electron holography；3D transmission；encoding/decoding；3D reconstruction；stereo display