Abstract

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.

© 2019 Optical Society of America

Resolution priority holographic stereogram based on integral imaging with enhanced depth range

Z. Wang, G. Q. Lv, Q. B. Feng, A. T. Wang, and H. Ming
Opt. Express 27(3) 2689-2702 (2019)

Enhancing integral imaging performance using time-multiplexed convergent backlight

Shitu Ma, Yimin Lou, Juanmei Hu, and Fengmin Wu
Appl. Opt. 59(10) 3165-3173 (2020)

Effect of illumination in an integral imaging system with large depth of focus

Dong-Hak Shin, Byoungho Lee, and Eun-Soo Kim
Appl. Opt. 44(36) 7749-7753 (2005)

Depth of field and resolution-enhanced integral imaging display system

Xiao-Li Ma, Han-Le Zhang, Rong-Ying Yuan, Tong-Yu Wang, Min-Yang He, Yan Xing, and Qiong-Hua Wang
Opt. Express 30(25) 44580-44593 (2022)

Large depth of focus dynamic micro integral imaging for optical see-through augmented reality display using a focus-tunable lens

Xin Shen and Bahram Javidi
Appl. Opt. 57(7) B184-B189 (2018)