Visual SLAM

SLAM using cameras (monocular, stereo, or RGB-D) as the primary sensor. Visual SLAM systems (ORB-SLAM3, VINS-Mono, RTAB-Map) extract and track visual features to estimate camera pose and build a 3D map of landmarks. Visual SLAM works in GPS-denied environments and provides rich geometric and appearance information, but is sensitive to textureless scenes and lighting changes.