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NVIDIA and Stanford collaborate to develop lightweight XR glasses using artificial intelligence
NVIDIA, in collaboration with Stanford University’s Computational Imaging Group, is pioneering the development of smaller, lighter extended reality (XR) glasses using artificial intelligence (AI). This innovative research aims to address social and mass barriers presented by current XR devices, which rely on heavy optics and head straps, according to the study. NVIDIA Tech Blog.
Challenges in XR optical design
Current XR devices require the display to be positioned close to the user’s eyes, which shifts the center of gravity and requires the use of head straps. This configuration, while necessary to balance the device, adds significant bulk. Additionally, human eyes have difficulty perceiving displays that are too close, requiring optical systems to transmit images at a comfortable viewing distance. Traditional solutions such as pancake lenses and optical waveguides have their limitations, such as additional weight, aberrations and limited viewing angles.
Holographic near-eye displays
Near-eye holographic displays are emerging as a promising technology to overcome these challenges. Using spatial light modulators (SLMs) that manipulate the phase of light, these displays can reconstruct 3D holograms close to the focal length of the lens, even if the display is positioned very close. NVIDIA’s research team has introduced holographic virtual reality (VR) glasses that are just 2.5mm thick, significantly reducing bulk and providing a more comfortable user experience.
Innovative holography based on artificial intelligence
The study, presented in the journal Nature, showcases full-color 3D augmented reality (AR) holographic displays with metasurface waveguides. These holographic AR glasses eliminate lenses from the optical path, using AI-driven algorithms to manage complex wavefront propagation within the waveguide system. This approach not only minimizes the form factor, but also improves image quality by leveraging artificial intelligence for precise calibration.
Future implications
The integration of artificial intelligence into the development of the XR glasses represents a significant advancement in display technology. By enabling the creation of lightweight and compact devices, AI-powered holography opens up new possibilities for XR applications, potentially transforming the way virtual and augmented reality content is experienced. This breakthrough also paves the way for new display form factors, moving beyond the traditional 2D rectangular screens that have been ubiquitous in the display industry.
For more detailed information, please visit NVIDIA Tech Blog.
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