Investigations into optimal color and shape primitives using the Perspecta 3D volumetric display

Volumetric displays allow users to view freely three-dimensional (3D) imagery without special eyewear. However, due to low display resolution, many colors appear distorted compared to their representation on a flat-panel display. In addition, due to the unique nature of the display, some shapes, objects, and orientations can also appear distorted. This study examines the perceptual range of virtual objects in a Perspecta 3D volumetric display to determine which combination of object type, size, position, and color produces the best perceived 3D image. Across three experiments, we test different object types, hues, saturation levels of hues, and position within the volumetric display. Participants rated their hue and shape naming confidence as well as their ratings on solidity. Various significant main and interaction effects were exhibited among three separate experiments.