Researchers in Spain have developed an innovative volumetric display technology that enables users to manipulate 3D virtual objects using natural hand gestures. This system, featuring a unique setup of elastic bands and rapid image projection, allows for direct interaction similar to touchscreen devices, such as pinching to zoom or tapping. Unlike traditional holography, which offers limited viewing angles, this technology provides a more immersive experience with 3D graphics, enhancing the user's innate spatial interaction capabilities. The innovative approach will be presented at the CHI 2025 conference in Japan.
"We are used to direct interaction with our phones, where we tap a button or drag a document directly with our finger on the screen - it is natural and intuitive for humans," coauthor Asier Marzo at the Public University of Navarre (UPNA) said.
"This project enables us to use this natural interaction with 3D graphics to leverage our innate abilities of 3D vision and manipulation," said Asier Marzo.
"The holograms you see in sci-fi movies are almost always better described as volumetric displays, which appear to take up space and float mid-air," lead author Elodie Bouzbib explained.
Holograms, by contrast, have very limited viewing angles in which the illusion of three-dimensionality is maintained, differentiating them from volumetric displays.
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