Science, Space and Technology News 2024
Through holography and AI, these glasses can display full-color, 3D moving images over an otherwise direct view of the real world. Credit: Andrew Brodhead
“Our headset appears to the outside world just like an everyday pair of glasses, but what the wearer sees through the lenses is an enriched world overlaid with vibrant, full-color 3D computed imagery,” said Gordon Wetzstein, an associate professor of electrical engineering and an expert in the fast-emerging field of spatial computing.
To succeed, the researchers have overcome technical barriers through a combination of AI-enhanced holographic imaging and new nanophotonic device approaches. The first hurdle was that the techniques for displaying augmented reality imagery often require the use of complex optical systems. In these systems, the user does not actually see the real world through the lenses of the headset.
“Beyond bulkiness, these limitations can also lead to unsatisfactory perceptual realism and, often, visual discomfort,” said Suyeon Choi, a doctoral student in the Stanford Computational Imaging lab and co-author of the paper.To produce more visually satisfying 3D images, Wetzstein leapfrogged traditional stereoscopic approaches in favor of holography, a Nobel-winning visual technique developed in the late-1940s.
“With holography, you also get the full 3D volume in front of each eye increasing the life-like 3D image quality,” said Brian Chao, a doctoral student in the Stanford Computational Imaging lab and also co-author of the paper.
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