Visual Inertial Odometry – definition

Visual Inertial Odometry or VIO is estimating the 3D pose (translation + orientation) of a moving camera relative to its starting position, using visual features. It’s combining visual and inertial measurements. Alternative of technique VIO is Simultaneous localization and mapping (SLAM).

ARKit framework uses Visual Inertial Odometry (VIO) to accurately track the world around it.

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