“What we see in films and call holograms are typically volumetric displays,” said Bouzbib, the lead author of the work. “These are graphics that appear in mid-air and can be viewed from various angles without the need for wearing virtual reality glasses. They are called true-3D graphics.”
Here is a link to the PDF that details the work: https://hal.science/hal-04981007v1/file/FlexiVol___CHI25 (2).pdf
i took “touchable” to mean you could literally feel the shape with your senses, but it appears what they are saying is it’s a way to interact with it, via pass through in various ways, etc. still pretty cool though
Perhaps pokable is a more apt description.
There are touchable graphics at the expo in Osaka. I think they‘re created by sonic waves and feel „fluffy“.
i guess they just mean like a 2D “touch”screen.
This one projects the image onto a bunch of vibrating rubber bands. I don’t think there’s a long term market for this. It’s a clever idea though that fixes the hazards of a solid diffuser (like those godawful fan-based volumetric displays).
that is old. remember 2014: https://newatlas.com/ultrasound-3d-haptic-hologram/35032/
That research was more about the haptics. This new research is more about projecting a volumetric hologram that can also be interacted with directly.
Here’s a video explainer about the research: https://www.youtube.com/watch?v=trQWfmH2OO4
I’m not sure touching is important. Have a touchpad for rotation if you are too lazy to physically move around object. Buttons for 45* rotations at a time would be even cheaper. Then, if purpose of display is to have many people around it, for “presentation purposes”, then a 2d screen and 3d rotation software will show objects in much better resolution and cheapest of all, while focusing on angle that matches presentation point.
