Safaei, D. (2026). Probabilistic Pedestrian Forecasts from a Handheld Phone: World-Frame Heat Maps, Visual-Inertial Height Drift, and Evaluation without Ground Truth. https://omanscience.com/en/articles/probabilistic-pedestrian-forecasts-from-a-handheld-phone-world-frame-heat-maps-visual-inertial-height-drift-and-evaluation-without-ground-truth