Wave optics is usually thought to be more rigorous than geometrical optics to analyze integral imaging (II) systems. However, most of the previous wave-optics investigations are directed to a certain subsystem or do not sufficiently consider the finite aperture of microlens arrays (MLAs). Therefore, a diffraction-limited model of the entire II system, which consists of pickup, image processing, and reconstruction subsystems, is proposed, and the effects of system parameters on spatial resolution are especially studied. With the help of paraxial scalar diffraction theory, the origin impulse response function of the entire II system is derived; the parameter matching condition with optimum resolution and the wave-optics principle are achieved. Besides, the modulation transfer function is then obtained and Fourier analysis is performed, which indicates that the features of MLA and the display play a critical role in spatial frequency transfer characteristics, greatly affecting the resolution. These studies might be useful for the further research and understanding of II systems, especially for the effective enhancement of resolution.

中文翻译：

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积分成像三维显示系统的波光学和空间频率分析

在分析积分成像（II）系统时，通常认为波光学比几何光学更严格。但是，大多数先前的波光学研究都针对某个子系统，或者没有充分考虑微透镜阵列（MLA）的有限孔径。因此，提出了一个由拾取，图像处理和重建子系统组成的整个II系统的衍射极限模型，并特别研究了系统参数对空间分辨率的影响。借助近轴标量衍射理论，推导了整个II系统的原点脉冲响应函数。实现了具有最佳分辨率的参数匹配条件和波光学原理。此外，获得调制传递函数并进行傅立叶分析，这表明MLA和显示器的功能在空间频率传递特性中起着至关重要的作用，极大地影响了分辨率。这些研究对于进一步研究和理解II系统可能是有用的，尤其是对于有效地提高分辨率。