Ho HY, Ng HF, Wen W, Gu Y, Hsu LT. Enhancing Smartphone-based Pedestrian Positioning: Using Factor Graph Optimization with Indoor/Outdoor Detection for 3DMA GNSS/Visual-Inertial State Estimation. JDSIS. Published online October 31, 2024. doi:10.47852/bonviewJDSIS42022961