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Understanding augmented reality terminology

Drift - Movement of hologram position from original placement location in the working environment

Feature Points- Unique points of interest that are tracked by the onboard cameras of the HoloLens

GLTF / GLB - “Graphics Library Transmission Format / Graphics Library Binary”, a data format for exchanging 3D models on the web

IFC - “Industry Foundation Classes”, a data format for exchanging BIM models

IPD - Inter Pupil Distance used by the HoloLens to correctly display the depth of holograms on the stereo display.

Connection Code (Link) - A QR code containing a link to a model hosted on the cloud

Publishing - The process of packaging, compressing, and previewing a model in a web browser

Registration Code (Marker) - A QR code used to correct for hologram positional error by fixing a point in model space to a point in physical space

SLAM - Simultaneous Localization and Mapping. SLAM algorithms are used by the HoloLens to estimate camera motion from visible feature points

Tracking - Estimated motion of the HoloLens determined by SLAM

Tracking Loss - Inability of the HoloLens to determine motion or position due to insufficient feature points visible to onboard cameras


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