PO-P3VINS: Lightweight PPP-Visual-Inertial Tightly-Coupled Positioning System With Pose-Only Visual Constraint
Precise Point Positioning (PPP) enables global positioning without base stations but suffers from prolonged convergence time, limiting its real-time applicability in autonomous systems. Meanwhile, Visual-Inertial Navigation System (VINS) provides smooth short-term motion estimates but accumulates unbounded drift over l...