Abstract
The full-chain system performance characterization is very important for the optimization design of an integral imaging three-dimensional (3D) display system. In this paper, the acquisition and display processes of 3D scene will be treated as a complete light field information transmission process. The full-chain performance characterization model of an integral imaging 3D display system is established, which uses the 3D voxel, the image depth, and the field of view of the reconstructed images as the 3D display quality evaluation indicators. Unlike most of the previous research results using the ideal integral imaging model, the proposed full-chain performance characterization model considering the diffraction effect and optical aberration of the microlens array, the sampling effect of the detector, 3D image data scaling, and the human visual system, can accurately describe the actual 3D light field transmission and convergence characteristics. The relationships between key parameters of an integral imaging 3D display system and the 3D display quality evaluation indicators are analyzed and discussed by the simulation experiment. The results will be helpful for the optimization design of a high-quality integral imaging 3D display system.
Highlights
Integral imaging, proposed by Lippman in 1908, is a promising 3D display technique for its full-color parallax, continuous-viewing 3D images and without any special glasses
The above work mainly discusses the influence of system parameters on a certain performance evaluation indicator through theoretical modeling, which does not research on the global parameters optimization of an integral imaging 3D display system from the perspective of the full-chain light field transmission
Hong Hua et al [14, 15] describe a generalized framework to model the image formation process of the existing light field display methods and present a systematic method to simulate the retinal image and the accommodation response rendered by a light field display, which provides the inspirations for the full-chain performance characterization of integral imaging 3D display system
Summary
Integral imaging, proposed by Lippman in 1908, is a promising 3D display technique for its full-color parallax, continuous-viewing 3D images and without any special glasses. Integral imaging uses a microlens array (MLA) to capture the light field from the 3D scene and another MLA to reconstruct the 3D light field for the observers [1,2,3,4]. Zhou et al [12] proposed an approximate voxel model for integral imaging, but they only considered an ideal capture process and did not consider the diffraction effect of the MLA, the sampling effect of detector, and discretization of the display pixel. The above work mainly discusses the influence of system parameters on a certain performance evaluation indicator (the imaging resolution, depth range or field of view) through theoretical modeling, which does not research on the global parameters optimization of an integral imaging 3D display system from the perspective of the full-chain light field transmission. Hong Hua et al [14, 15] describe a generalized framework to model the image formation process of the existing light field display methods and present a systematic method to simulate the retinal image and the accommodation response rendered by a light field display, which provides the inspirations for the full-chain performance characterization of integral imaging 3D display system
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