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Category: virtual reality

Researchers at the University of Liège (Belgium) have uncovered a previously unknown mechanism that regulates the immune response against parasites. During a parasitic infection, specific immune cells, known as virtual memory T cells, become activated and express a surface molecule called CD22, which prevents an excessive immune reaction. This discovery could help in better-controlling inflammation and improving immune responses to infections.

The findings are published in the journal Science Immunology.

Nearly a quarter of the world’s population is infected by helminths, that establish themselves in the intestine for extended periods. In response to these invaders, the immune system deploys complex defense strategies. In their recent study, the researchers revealed a previously unsuspected mechanism that regulates the activation of certain : CD8+ virtual memory T cells (TVM).

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A research team at POSTECH has developed a novel multidimensional sampling theory to overcome the limitations of flat optics. Their study not only identifies the constraints of conventional sampling theories in metasurface design but also presents an innovative anti-aliasing strategy that significantly enhances optical performance. Their findings were published in Nature Communications.

Flat optics is a cutting-edge technology that manipulates light at the nanoscale by patterning ultra-thin surfaces with nanostructures. Unlike traditional optical systems that rely on bulky lenses and mirrors, enables ultra-compact, high-performance optical devices. This innovation is particularly crucial in miniaturizing smartphone cameras (reducing the “camera bump”) and advancing AR/VR technologies.

Metasurfaces, one of the most promising applications of flat optics, rely on hundreds of millions of nanostructures to precisely sample and control the phase distribution of light. Sampling, in this context, refers to the process of converting analog optical signals into discrete data points—similar to how the human brain processes visual information by rapidly capturing multiple images per second to create continuous motion perception.

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Microscale light-emitting diodes (micro-LEDs) are emerging as a next-generation display technology for optical communications, augmented and virtual reality, and wearable devices. Metal-halide perovskites show great potential for efficient light emission, long-range carrier transport, and scalable manufacturing, making them potentially ideal candidates for bright LED displays.

However, manufacturing thin-film perovskites suitable for micro-LED displays faces serious challenges. For example, thin-film perovskites may exhibit inhomogeneous light emission, and their surfaces may be unstable when subjected to lithography. For these reasons, solutions are needed to make thin-film perovskites compatible with micro-LED devices.

Recently, a team of Chinese researchers led by Professor Wu Yuchen at the Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences has made significant strides in overcoming these challenges. The team has developed a novel method for the remote epitaxial growth of continuous crystalline perovskite thin films. This advance allows for seamless integration into ultrahigh-resolution micro-LEDs with pixels less than 5 μm.

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I had a conversation with NVIDIA CEO Jensen Huang and we spoke about groundbreaking developments in physical AI and other big announcements made at CES. Jensen discusses how NVIDIA Cosmos and Omniverse are revolutionizing robot training, enabling machines to understand the physical world and learn in virtual environments — reducing training time from years to hours.

He shares insights on NVIDIA DRIVE AI’s autonomous vehicle developments, including their major partnership with Toyota, and talks about the critical role of safety in their three-computer system approach.

Jensen also shares what he considers to be the most impactful technology of our time! This conversation left me feeling excited for the future of technology and where we’re headed. I hope you enjoy it as much as I did.

Timestamps:

Continue reading “NVIDIA CEO Jensen Huang on Robotics, AI, And The Next Big Emerging Technologies” | >

Virtual reality headsets like the Meta Quest or Apple Vision Pro will be a Christmas gift in more than one home this year.

Now mice are getting in on the action.

Researchers have developed a set of VR goggles for lab mice for use in brain studies, according to a report published recently in the journal Nature Methods.

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Thanks to their genetic makeup, their ability to navigate mazes and their willingness to work for cheese, mice have long been a go-to model for behavioral and neurological studies.

In recent years, they have entered a new arena—virtual reality—and now Cornell researchers have built miniature VR headsets to immerse them more deeply in it.

The team’s MouseGoggles—yes, they look as cute as they sound—were created using low-cost, off-the-shelf components, such as smartwatch displays and tiny lenses, and offer visual stimulation over a wide field of view while tracking the mouse’s eye movements and changes in pupil size.

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We can expect to see more recommendations for VR in catastrophic injury cases.

Immersive Virtual Reality (IVR or VR) as a tool in rehabilitation is changing at pace and has far reaching consequences that will increasingly be seen in the claims space.

Combined with AI powered treatment planning and smart home devices for daily rehabilitation, innovative technologies are now evident in all aspects of rehabilitation.

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Just as the metaverse industry finally began its breakthrough, ChatGPT’s launch in November 2022 proved a technological avalanche. Amid post-pandemic economic pressures, companies pivoted away from metaverse aspirations to AI adoption, seeking immediate returns through automation and virtualization.

Apple’s 2023 entry into the space with Vision Pro VR headset has similarly faced challenges. At $3,499, with limited content and a sparse developer ecosystem, Apple struggles to find its market. Early projections suggest initial production runs of fewer than 400,000 units.

What if we’ve been looking for the metaverse in the wrong places? While Meta, HTC and Sony have so far struggled to establish their vision of a VR-first digital world, gaming platforms like Roblox quietly built what might be the actual metaverse.

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Creating realistic 3D models for applications like virtual reality, filmmaking, and engineering design can be a cumbersome process requiring lots of manual trial and error.

While generative artificial intelligence models for images can streamline artistic processes by enabling creators to produce lifelike 2D images from text prompts, these models are not designed to generate 3D shapes. To bridge the gap, a recently developed technique called Score Distillation leverages 2D image generation models to create 3D shapes, but its output often ends up blurry or cartoonish.

MIT researchers explored the relationships and differences between the algorithms used to generate 2D images and 3D shapes, identifying the root cause of lower-quality 3D models. From there, they crafted a simple fix to Score Distillation, which enables the generation of sharp, high-quality 3D shapes that are closer in quality to the best model-generated 2D images.

Continue reading “A new way to create realistic 3D shapes using generative AI” | >