Systematic method for modeling and characterizing multilayer light field displays

Abstract

Conventional stereoscopic displays are subject to the well-known vergence-accommodation conflict (VAC) problem due to their lack of the ability to render correct focus cues of a 3D scene. A computational multilayer light field display has been explored as one of the approaches that can potentially overcome the VAC problem owing to the promise of rendering a true 3D scene by sampling the directions of the light rays apparently emitted by the 3D scene. Several pioneering works have demonstrated working prototypes of multilayer light field displays and the potential capability of rendering nearly correct focus cues. However, there is no systematic investigation upon methods for modeling and analyzing such a display, which is essential for further optimization and development of high-performance multilayer light field display systems. In this paper, we proposed a systemic analysis method for the multilayer light field displays by simulating the perceived retinal image which takes the display factors, the view-dependency of the reference light field, the diffraction effect, and the visual factors into consideration. Then we applied this model to investigate the accommodative response when observing the display engine.

14.1: Near‐eye light field display based on biological stereoscopic vision

“…The typical method is to change the spatial arrangement of the incident light field through specific optical devices to achieve accurate reconstruction of the spatial light field of multi-angle information. Professor H.Hua's team of the University of Arizona [24] proposed a near-eye light field imaging model based on double-layer liquid crystal, which decomposes the light field of the three-dimensional scene into several layers, and achieves precise control through This scheme can realize high angular resolution and spatially resolved light field reconstruction. However, the depth of field range for reconstructing the light field is strictly limited by the interval between the light attenuation layers, and there is also the problem that the field of view is too small.…”

Optical modelling of accommodative light field display system and prediction of human eye responses

“…Higher viewpoint densities resulted in smaller predicted shifts. The model was improved further by taking into account the positional sampling and finite pixel resolution in the CDP [14], by generalising it for computational multi-layer LF displays [15], and by unifying the framework to serve both integral imaging displays and computational multi-layer displays [16]. Qin et al proposed a model aimed at simulating retinal images rendered by a microlens-array-based near-eye LF display, taking into account off-axis ray propagation and using a rigorous calculation of diffraction [17].…”

Design, Fabrication, and Applications of Liquid Crystal Microlenses

“…With the rapid proliferation of integrated optics, extensive efforts have been made to minimize the volume and reduce the overall weight of the photonic components in display, [ 1 ] optical communication, [ 2 ] optical sensor, [ 3 ] imaging system, [ 4 ] etc. Optical lenses are one of the critical components of such systems.…”