Can't see clearly—can the robot still localize? SLAM begins using "contact" to find its position
SLAM is beginning to use contact information between the robot and the environment as a basis for localization, supplementing pose estimation with kinematics and foot-ground constraints when vision and LiDAR are limited. KD-RIEKF from IROS 2025 was validated on the Unitree Go2, and under its test conditions, both position and attitude estimation errors decreased when the robot moved at high speed.