RT Journal Article T1 UcoSLAM: Simultaneous localization and mapping by fusion of keypoints and squared planar markers A1 Munoz-Salinas, Rafael A1 Medina-Carnicer, R. K1 SLAM K1 KeyPoints K1 Fiducial markers K1 Marker mapping K1 ArUco K1 Place recognition AB Simultaneous Localization and Mapping is the process of simultaneously creating a map of the environment while navigating in it. Most of the SLAM approaches use natural features (e.g. keypoints) that are unstable over time, repetitive in many cases or their number insufficient for a robust tracking (e.g. in indoor buildings). Other researchers, on the other hand, have proposed the use of artificial landmarks, such as squared fiducial markers, placed in the environment to help tracking and relocalization. This paper proposes a novel SLAM approach by fusing natural and artificial landmarks in order to achieve long-term robust tracking in many scenarios.Our method has been compared to the start-of-the-art methods ORB-SLAM2 [1], LDSO [2] and SPM-SLAM [3] in the public datasets Kitti [4], Euroc-MAV [5], TUM [6] and SPM [3], obtaining better precision, robustness and speed. Our tests also show that the combination of markers and keypoints achieves better accuracy than each one of them independently. PB Elsevier SN 0031-3203 YR 2020 FD 2020-05-01 LK http://hdl.handle.net/10668/18865 UL http://hdl.handle.net/10668/18865 LA en NO Muñoz-Salinas R, Medina-Carnicer R. UcoSLAM: Simultaneous localization and mapping by fusion of keypoints and squared planar markers. Pattern Recognition [Internet]. 1 de mayo de 2020;101:107193 DS RISalud RD Apr 9, 2025