FusionLCD: Visual-LiDAR Loop Closure Detection With Global Visual Prefiltering for Multi-Sensor SLAM
FAST-LIVO2 tightly couples LiDAR geometry with direct visual updates in a unified voxel map for accurate real-time mapping and tracking, yet drift can still accumulate over long trajectories and lead to global inconsistency. We therefore propose FusionLCD, a lightweight online loop closure detection module for multi-se...