At STRL, we study display techniques capable ot producing natural and easily visualized three-dimensional (3D) images- responsive to viewing position and posture while also not requiring special glasses-by reproducing the light rays emitted in horizontal and vertical directions by the objects to be imaged. We are developing a technique that uses time-division multiplexing to reproduce larger numbers of light rays, enabling, for the first time, displays of full-parallax 3D images*1 at the equivalent of high-definition (HD) television resolution. This new technology, named Aktina Vision*2, achieves full-parallax 3D image displays by projecting superpositions of multi-view images-multiple images of the objects to be imaged, captured from various directions-onto a display screen with specialized diffusion properties. By increasing both the number of multi-view images and the resolution of individual images, our technique increases the number of reproduced light rays and improves the resolution properties of 3D images. The technology developed in this work uses a novel time-division multiplexing scheme to achieve a fourfold increase in the number of light rays; a prototype system consisting of a 120 Hz 8K projector and a dedicated optical system enables full-parallax 3D image displays at HD-equivalent resolution.
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