摘要
构建了一种全视差全息体视图的成像系统模型,成像系统因三维物体具有一定深度分布而存在波前像差,运用带像差衍射受限系统的相关理论对该模型进行了相关分析。采用矩形光瞳为成像系统的出瞳函数,计算得到在无像差、小像差和大像差三种像差下光学传递函数与空间频率、出瞳尺寸三者间的变化关系,并以光学传递函数与空间频率的积分值作为该成像系统的成像质量的评价指标,得到不同像差条件下积分值与出瞳尺寸的曲线,优化矩形光瞳的孔径尺寸,获得在全视差全息体视图的打印平台中孔径光阑的最佳尺寸,以提高全视差全息体视图的成像质量。
A model of the full-parallax holographic stereographic imaging system is built. The wavefront aberration exists because of the depth distribution of three-dimensional （3D） objects, and this aberration is analyzed by the related theory of diffraction-limited imaging system. Rectangular pupil is used as the exit pupil of the imaging system. The relationship among the optical transfer function （OTF）, the spatial frequency, and the pupil size is obtained in such situations as non-aberration, small-aberration and large-aberration. In addition, the imaging quality can be evaluated by the integral values of OTF on spatial frequency, the variation relationship between the integral value of OTF and pupil size is obtained under different aberration conditions, so as to optimize the size of rectangular pupil and get the optimal aperture size on printing platform of full-parallax holographic stereogram to improve the imaging quality.
出处
《激光与光电子学进展》
CSCD
北大核心
2016年第3期68-74,共7页
Laser & Optoelectronics Progress
基金
全国优秀博士学位论文作者专项资金(201432)
北京市自然科学基金(4152049)
北京市科技新星计划(XX2015087)
关键词
全息
体视图
全视差
成像系统
矩形光瞳
光学传递函数
holography
holographic stereogram
full-parallax
imaging system
rectangular pupil
optical transfer function
