| 计算机与光学相结合的体视全息三维显示 |
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| 引用本文： | 杨上供,甘亮勤.计算机与光学相结合的体视全息三维显示[J].厦门理工学院学报,2011,19(4):14-17. |
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| 作者姓名： | 杨上供 甘亮勤 |
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| 作者单位： | 厦门理工学院数理系,福建厦门,361024 |
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| 基金项目： | 福建省教育厅B类科技项目，厦门理工学院科研基金项目 |
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| 摘 要： | 在计算机制全息技术和光学全息技术的基础上,研究用计算机-光学方法联合制作体视全息三维立体显示技术.根据人眼立体视觉原理获取三维物体带有视差信息的体视图,通过计算机计算得到计算全息图H1;将H1严格对位,用激光再现获得带有视差信息的再现像,并以此再现像为对象,用光学全息的方法拍摄彩虹全息图H2;用白光再现H2,通过双眼综合出三维立体图像.在全息图的计算过程中,采用快速傅里叶变换算法提高了计算速度,将计算全息与光学全息相结合,发挥了各自的优势.
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| 关 键 词： | 计算全息 彩虹全息 视差 体视图 |
Three-dimensional Stereoscopic Holographoc Display Combining Computer-generated Hologram and Optical Hologram |
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| YANG Shang-gong,GAN Liang-qin.Three-dimensional Stereoscopic Holographoc Display Combining Computer-generated Hologram and Optical Hologram[J].Journal of Xiamen University of Technology,2011,19(4):14-17. |
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| Authors: | YANG Shang-gong GAN Liang-qin |
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| Institution: | ( Faculty of Mathematics ＆ Physics, Xiamen University bf Technology, Xiamen 361024, China) |
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| Abstract: | Based on computer-generated holography and optical holography, a new three-dimensional stereoscopic display technique combining computer-generated hologram （CGH） and optical hologram is proposed. Firstly, a pair of stereogram with parallax is obtained using camera, and two computer-generated holograms（H1） is created from the stereogram. Then, re-illuminating H1, a pair of images with parallax is acquired, and the rainbow hologram（H2） is recorded when interfering with reference beam. FinaUy, a three- dimensional reconstruction is synthesized through H2 under natural light. This method utilizes the advantages of CGH and optical hologram, and Fast-Fourier-transform is introduced to speed up the calculation of CGH. |
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| Keywords: | computer-generated hologram rainbow hologram parallax stereogram |
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