Visual-inertial odometry
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Visual inertial odometry (VIO) is a method used in spatial tracking. It is a method by which a camera-connected computer system can use visual data from the camera to determine how the camera moves. It involves estimating the position and orientation of a moving sensor, often a camera, by combining visual data from the camera with inertial measurements from an inertial measurement unit (IMU).
It is related to simultaneous localization and mapping (SLAM).
A required step is bundle adjustment.