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Basics of Augmented Reality

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AR Device

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A hardware like smartphones, tablets, or specialized AR glasses used to experience augmented reality.

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Markerless AR

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AR that does not rely on predefined markers, using features of the environment for placement and tracking of AR objects.

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360-Degree Video

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A video recording that captures a scene in every direction at the same time, often used in AR for immersive experiences.

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Field of View (FoV) in AR

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The extent of the observable environment at any given moment seen through AR devices.

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Depth Sensor

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A sensor that detects and measures the distance from the sensor to objects in the environment, crucial for accurately placing AR objects in 3D space.

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Gesture Recognition

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The ability of a system to recognize and interpret human gestures as commands.

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Real-time rendering

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The process of computing and displaying images in quick succession to create the appearance of motion, essential for live AR experiences.

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Head-Up Display (HUD)

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A transparent display that presents data without requiring users to look away from their usual viewpoints.

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Augmented Reality (AR)

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An interactive experience where real-world environments are enhanced with computer-generated perceptual information, sometimes across multiple sensory modalities.

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Spatial Audio

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Audio technology that mimics the natural world by allowing sounds to come from any direction in a 3D space.

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Marker-based AR

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A type of AR that uses a camera to identify visual markers or codes to overlay digital information on the physical world.

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Simultaneous Localization and Mapping (SLAM)

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A computational method that helps AR systems understand and map the surrounding physical environment to accurately overlay digital content.

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Light Field Display

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An advanced display technology that produces realistic, holographic, or 3D imagery by simulating the way light behaves in the real world.

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Extended Reality (XR)

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An umbrella term encompassing augmented reality (AR), virtual reality (VR), mixed reality (MR), and everything in between.

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Haptic Feedback

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Touch feedback technology that recreates the sense of touch by applying forces, vibrations, or motions to the user.

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Visual Inertial Odometry (VIO)

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A process used by AR systems to track the position of a device relative to the world around it by combining camera sensor data with motion sensors.

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Photogrammetry

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The science of obtaining reliable measurements from photographs, used in AR to accurately map and recreate real-world spaces.

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Occlusion in AR

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A graphical effect where objects closer to the viewpoint block objects further away, providing a sense of depth in AR.

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Augmented Geocaching

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A hi-tech treasure hunting game where individuals use AR to find caches or hidden items in the real world.

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Chroma Keying

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A technique used to replace a background color (typically green) with virtual backgrounds or scenes, commonly used in broadcasting and AR.

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Mixed Reality (MR)

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A blend of physical and digital worlds, unlocking natural and intuitive 3D human, computer, and environment interactions.

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ARCore

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A platform developed by Google for building AR experiences that integrates the virtual world with the real world using different APIs.

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Augmented Reality Markup Language (ARML)

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A data standard which allows the sharing and experiencing of augmented reality (AR) experiences in XML format.

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ARKit

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A framework by Apple that allows developers to create augmented reality experiences for iOS devices.

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Smart Glasses

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Wearable computer glasses that add information alongside or to what the wearer sees.

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Ray Casting

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A technique used to calculate the intersection of a ray with objects in a virtual environment, important for rendering AR visuals and detecting collisions.

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