Choi Kyongsik, Kim Joohwan, Lim Yongjun, Lee Byoungho
Opt Express. 2005 Dec 26;13(26):10494-502. doi: 10.1364/opex.13.010494.
A novel full parallax and viewing-angle enhanced computer-generated holographic (CGH) three-dimensional (3D) display system is proposed and implemented by combining an integral lens array and colorized synthetic phase holograms displayed on a phase-type spatial light modulator. For analyzing the viewing-angle limitations of our CGH 3D display system, we provide some theoretical background and introduce a simple ray-tracing method for 3D image reconstruction. From our method we can get continuously varying full parallax 3D images with the viewing angle about +/-6 degrees . To design the colorized phase holograms, we used a modified iterative Fourier transform algorithm and we could obtain a high diffraction efficiency (92.5%) and a large signal-to-noise ratio (11dB) from our simulation results. Finally we show some experimental results that verify our concept and demonstrate the full parallax viewing-angle enhanced color CGH display system.
通过将积分透镜阵列与显示在相位型空间光调制器上的彩色合成相位全息图相结合，提出并实现了一种新型的全视差和视角增强型计算机生成全息（CGH）三维（3D）显示系统。为了分析我们的CGH 3D显示系统的视角限制，我们提供了一些理论背景，并介绍了一种用于3D图像重建的简单光线追踪方法。通过我们的方法，我们可以获得视角约为±6度的连续变化的全视差3D图像。为了设计彩色相位全息图，我们使用了改进的迭代傅里叶变换算法，并且从我们的模拟结果中可以获得高衍射效率（约92.5%）和大信噪比（约11dB）。最后，我们展示了一些实验结果，这些结果验证了我们的概念，并展示了全视差视角增强型彩色CGH显示系统。
