Comparison of Various SLAM Systems for Mobile Robot in an Indoor Environment
This study addresses the performance evaluation of simultaneous localization and mapping (SLAM) in structured indoor environments. We systematically benchmark ten mainstream open-source SLAM algorithms—spanning 2D LiDAR, monocular, and stereo camera modalities—using a unified, real-world multimodal dataset collected in an office setting, with synchronized 2D LiDAR scans, monocular RGB frames, and ZED stereo images. A standardized evaluation framework is established, incorporating quantitative metrics including absolute trajectory error (ATE), map completeness, and real-time execution capability. To our knowledge, this is the first work to conduct a cross-sensor, cross-algorithm comparative analysis on identical real-world data, revealing systematic trade-offs among accuracy, robustness, and operational applicability. Results indicate that Cartographer (LiDAR-based), ORB-SLAM2 (monocular), and RTAB-Map (stereo) achieve the best overall performance. This work provides a reproducible benchmark and empirical foundation for sensor selection and algorithmic improvement in multi-modal SLAM.