Image quality enhancement for an integral imaging display using aperture array and revised pixel mapping method

The limited space-bandwidth product constrains the performance of an integral imaging three-dimensional (3D) display, highlighting the need for optimization of system structure and display process. In this paper, we propose an image quality enhanced integral imaging 3D display system under a restricted information-capacity. An aperture array corresponding to the microlens array (MLA) is integrated into the system to improve display clarity and minimize crosstalk by controlling the beam diameter entering each microlens. To increase the ultimate information accuracy, a revised pixel mapping (RPM) method is designed to precisely manage the mapping from 3D scene voxels to pixels, which efficiently generates an element image array (EIA) without pseudoscopy or data loss. A prototype is developed, and the experimental results indicate that the Structural Similarity (SSIM) of reconstructed image improves by an average of 18%, with the improvement up to 40% at edge perspectives. This optimized system offers a promising solution for high-quality, real-time pickup and reconstruction in the naked-eye 3D display.