水平光场三维显示单目聚焦特性研究

发布时间：2018-07-04 18:53

本文选题：测量 + 三维显示　；参考：《光学学报》2017年09期

【摘要】：水平光场三维(3D)显示可以在保证较好立体显示效果的同时,显著压缩需处理的海量光线信息,因此是一种重要的三维显示方法。由于缺少竖直方向的光场变化,水平光场的显示清晰度表现力与单目聚焦能力都与理想的光场形式不同。基于扫描型光场显示技术,分析了水平光场的点扩展函数(PSF);基于人眼和相机的自动聚焦原理,对不同显示参数下所重构的水平光场进行聚焦仿真,得出光线横向散射角以及每圈更新图像数对水平光场单目聚焦能力的影响;通过扫描型水平光场显示样机对所得结论进行验证。结果表明,水平光场的最大可聚焦高度随光线横向散射角的增加而减小,随每圈更新图像数的增加而增加。该分析方法及结论可以为单目聚焦水平光场显示系统提供设计依据。
[Abstract]:Three-dimensional (3D) display of horizontal light field is an important 3D display method because it can significantly compress the massive light information which needs to be processed while ensuring better stereoscopic display effect. Due to the lack of vertical light field variation, the display sharpness and Monocular focusing ability of the horizontal light field are different from the ideal light field form. The point spread function (PSF) of the horizontal light field is analyzed based on the scanning light field display technology, and the focal simulation of the horizontal light field reconstructed under different display parameters is carried out based on the principle of automatic focusing of the human eye and the camera. The effects of the transverse scattering angle of light and the number of updated images per cycle on the monocular focusing ability of the horizontal light field are obtained, and the results are verified by the scanning horizontal light field display prototype. The results show that the maximum focusing height of the horizontal light field decreases with the increase of the transverse scattering angle of light and increases with the number of updated images per cycle. The analysis method and conclusion can provide the basis for the design of monocular focusing horizontal light field display system.
【作者单位】：浙江大学光电科学与工程学院;
【基金】：国家863计划(2015AA015904) 国家自然科学基金(61575175)
【分类号】：TN873

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