Very large-scale integral imaging (VLSII) for 3-D display

Abstract

Very large-scale integral imaging (VLSII) systems utilizing multiple micro-optics arrays and display devices can be used for wide viewing angle 3-D displays. We analyze the distortion of 3-D integral images when micro-optics arrays are placed on a spherical surface and are used in direct pickup integral imaging. We show that 3-D orthoscopic real images with non-negligible depth always suffer from image distor- tion, while orthoscopic virtual images do not. Also, nonplanar (curved) display panels and image sensors are not currently available. We pro- pose a solution to remedy this problem by placing a spherical lens in front of a planar lenslet array. © 2005 Society of Photo-Optical Instrumentation Engineers. (DOI: 10.1117/1.1824907) tion on VLSII using spherical surfaces to determine what kind of integral images are formed and how direct camera pickup can be used to obtain elemental images. We attempt to provide analytical answers to some of these questions. Also, nonplanar ~curved! display panels and image sensors are not currently available. We propose a solution to remedy this problem by modeling the VLSII with lenslet arrays arranged on spherical surfaces as an II system with planar lenslet arrays, on which thin lenses with proper focal lengths are attached. Our analysis illustrates that 3-D orthoscopic real images with large depth always suffer from image distortion, while orthoscopic virtual im- ages do not. Preliminary experiments are presented. 2 Analysis