Graph-Based Indoor 3D Pedestrian Location Tracking With Inertial-Only Perception

Bai, S., Wen, W., Su, D., Hsu, L. T.

IEEE Transactions on Mobile Computing (2025)

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Four 3D indoor pedestrian trajectory plots comparing estimated paths with ground truth.
Figure 9 from the paper: 3D trajectory comparisons against ground truth in an office building.