Antialiasing Filtering for Projection-Based Light Field Displays

Projection-based light field displays can achieve realistic visualization of a 3D scene. However, these displays can reproduce only a finite number of light rays, thus their bandwidth is limited in terms of angular and spatial resolution. Consequently, a display cannot show parts of the 3D scene that falls outside of its bandwidth region without aliasing distortion. Therefore, light fields should be properly pre-processed before visualizing them on a light field display. In this paper, we develop two methods for designing antialiasing filters that will either remove or blur parts of the scene in the input light field that causes aliasing. We illustrate the effectiveness of the proposed methods by comparing the visualized light fields on a projection-based light field display before and after applying the designed antialiasing filters.