Absolute Localization
Absolute localization, the precise determination of a vehicle or robot's position within a global coordinate system, is crucial for autonomous navigation, particularly in challenging environments lacking GPS. Current research focuses on developing robust methods that either bypass the need for absolute localization altogether, relying instead on relative pose estimation and local trajectory planning, or leverage alternative sensor data like crater detection for planetary exploration and vision-based systems (including Visual Odometry and VSLAM) for GPS-denied terrestrial applications. These advancements are significant for enabling autonomous operation in diverse and challenging scenarios, ranging from semi-autonomous driving to planetary rover exploration, by reducing reliance on expensive and potentially unreliable technologies.