Development of a scalable tabletop display using projection-based light field technology

Abstract

We present a light-field display optical system design, state-of-the-art hardware technology, and computational software that are readily scalable (due to their modular structure) and provide naturally immersive and volumetric display systems. We explain the integration of 72 microprojectors into the tabletop display system. In addition, we used 6 workstations for all images and 18 highperformance graphics processing units. Sophisticated image generation through author tooling and the pixel re-arrangement algorithm in the Unity engine enabled us to produce complete threedimensional images from the radiant rays of two-dimensional pixels using diffuser screens and microlens arrays.

The Good News, the Bad News, and the Ugly Truth: A Review on the 3D Interaction of Light Field Displays

“…This, of course, does not stifle innovation, as many institutions propose and develop their own prototypes. Beyond the any-size, any-aspect and any-shape light field display of Holografika [36], there are the layer-based solutions (i.e., multiple LCD layers are used to create the depth of field) of Teng and Liu [37], Alpaslan and El-Ghoroury [38], and Lanman et al [39]; the integral imaging methods (i.e., a micro-lens array transforms the light rays) of Zhao et al [40], Yu et al [41] and Lee et al [42]; and the projection-based implementations of Zhong et al [43], Shim et al [44], and Jang et al [45], and many more.…”