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Lidar-based AR Display Reveals Hidden Road Hazards

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JOEL WILLIAMS, ASSOCIATE EDITOR
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A lidar-based AR head-up display allows drivers to “see through” objects to alert of potential hazards without distraction. Researchers from the University of Cambridge, the University of Oxford, and University College London (UCL) developed the technology, which uses lidar to create ultrahigh-definition holographic representations of road objects. Those objects are then projected directly to the driver’s eyes, contrasting with the 2D windshield projections used in most head-up displays. “Our results show that the 2D windscreen projections could distract...Read full article

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    Published: April 2021
    Glossary
    holography
    Holography is a technique used to capture and reconstruct three-dimensional images using the principles of interference and diffraction of light. Unlike conventional photography, which records only the intensity of light, holography records both the intensity and phase information of light waves scattered from an object. This allows the faithful reproduction of the object's three-dimensional structure, including its depth, shape, and texture. The process of holography typically involves the...
    lidar
    Lidar, short for light detection and ranging, is a remote sensing technology that uses laser light to measure distances and generate precise, three-dimensional information about the shape and characteristics of objects and surfaces. Lidar systems typically consist of a laser scanner, a GPS receiver, and an inertial measurement unit (IMU), all integrated into a single system. Here is how lidar works: Laser emission: A laser emits laser pulses, often in the form of rapid and repetitive laser...
    augmented reality
    Augmented reality (AR) is a technology that integrates digital information, typically in the form of computer-generated graphics, images, or data, with the real-world environment in real-time. AR enhances the user's perception of the physical world by overlaying or combining digital content onto the user's view of the real world, often through devices like smartphones, tablets, smart glasses, or specialized AR headsets. Key features and principles of augmented reality: Real-time...
    head-up display
    A head-up display (HUD) is a transparent display technology that presents information directly in the field of view of a user, typically without requiring the user to look away from their usual viewpoint. HUDs are often integrated into vehicle windshields, helmets, or eyeglasses to provide real-time information without the need for the user to divert their attention from the task at hand. Projection system: A HUD uses a projection system to display images or information onto a transparent...
    Research & TechnologyholographyLaserslidaraugmented realityAugmented Reality Displayhead-up displayhead-up display systemshead-upheads-up displayheads-up displaysvehiclevehicle safety systemssafetyautomotiveEuropeUniversity of CambridgeTech Pulse

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