Bandwidth-enhanced depth priority Integral imaging using a band-limited diffusing illumination technique

Lou Yimin; Hu Juanmei; Wu Fengmin; Chen Aixi

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Bandwidth-enhanced depth priority Integral imaging using a band-limited diffusing illumination technique

机译：带宽增强的深度优先级，使用带限制扩散照明技术的整体成像

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The display bandwidth and display mechanism determine the performance of the three-dimensional (3D) display system. In this paper, a bandwidth-enhanced depth priority integral imaging (DPII) technique is proposed. Information transmission efficiency (ITE) defined as the output display bandwidth divided by the input display bandwidth is used to assess the II system. By analyzing the ITE, we find that only a part of the input display bandwidth is used efficiently to present the 3D image in the traditional DPII system. The DPII system sacrifices the ITE for depth enhancement. The low ITE that fundamentally limits the 3D performance of the DPII system is ascribed to the diffusing illumination mechanism of the display system. To enhance the 3D performance, a collimated illumination DPII system as a special case of band-limited diffusing illumination technique has been proposed and demonstrated first. The bandwidth and ITE of such a DPII system are increased. The depth of field (DOF) of the system is doubled. The resolution of the 3D image is increased to the level of the resolution priority II system without sacrificing the viewing angle. A more general case, band-limited illumination DPII system is also demonstrated. By modulating the divergence angle of the illumination system, the 3D image's resolution and DOF can be controlled. The bandwidth and ITE of the DPII system using band-limited illumination are also higher than that of the traditional DPII system. Experiments are presented to prove the bandwidth-enhanced mechanism of the DPII system. (C) 2019 Optical Society of America

机译：显示带宽和显示机制决定了三维（3D）显示系统的性能。在本文中，提出了一种带宽增强的深度优先级整体成像（DPII）技术。信息传输效率（ITE）定义为输出显示带宽除以输入显示带宽用于评估II系统。通过分析ITE，我们发现仅在传统DPII系统中有效地使用输入显示带宽的一部分，以呈现3D图像。 DPII系统牺牲ITE进行深度增强。基本上限制了DPII系统的3D性能的低ITE归因于显示系统的扩散照明机构。为了提高3D性能，已经提出了一种准直的照明DPII系统作为带限量扩散照明技术的特殊情况并首先进行。这种DPII系统的带宽和ITE增加。系统的景深（DOF）加倍。在不牺牲视角的情况下，3D图像的分辨率增加到分辨率优先级II系统的水平。还证明了一个更常规的情况，带限量照明DPII系统。通过调制照明系统的发散角，可以控制3D图像的分辨率和DOF。使用带限量照明的DPII系统的带宽和ITE也高于传统DPII系统的带宽和ITE。提出了实验以证明DPII系统的带宽增强机制。（c）2019年光学学会

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《Applied optics》 |2019年第5期|共8页
作者
Lou Yimin; Hu Juanmei; Wu Fengmin; Chen Aixi;
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Zhejiang Sci Tech Univ Dept Phys Key Lab Opt Field Manipulat Zhejiang Prov Hangzhou 310018 Zhejiang Peoples R China;

Zhejiang Sci Tech Univ Dept Phys Key Lab Opt Field Manipulat Zhejiang Prov Hangzhou 310018 Zhejiang Peoples R China;

Zhejiang Sci Tech Univ Dept Phys Key Lab Opt Field Manipulat Zhejiang Prov Hangzhou 310018 Zhejiang Peoples R China;

Zhejiang Sci Tech Univ Dept Phys Key Lab Opt Field Manipulat Zhejiang Prov Hangzhou 310018 Zhejiang Peoples R China;

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Bandwidth-enhanced depth priority Integral imaging using a band-limited diffusing illumination technique

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