AMB3R-SLAM: 階層型バックエンドによるキロメートル規模SLAM
AMB3R-SLAM: Kilometer-scale SLAM with Hierarchical Backend
単一の民生用GPUで1万フレーム超のキロメートル規模軌跡をリアルタイム復元できる単眼SLAMを提案し、階層型バックエンドで動的環境にも対応、LiDAR等の追加入力にも拡張可能。
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著者: Hengyi Wang, Lourdes Agapito
分類: cs.CV, cs.RO
原文アブストラクト
We present AMB3R-SLAM, a real-time monocular SLAM system capable of reconstructing kilometer-scale trajectories over 10k frames on a single consumer-grade GPU. Our model couples a lightweight front-end for low-latency online tracking with a hierarchical backend that progressively enforces local, mid-level, and global consistency. By avoiding bundle adjustment that relies on the static world assumption, our system naturally handles complex dynamic scenes out of the box. Furthermore, we demonstrate that our method can be extended to leverage stereo, RGB-D, and LiDAR as additional inputs. AMB3R-SLAM achieves strong camera tracking performance across 9 datasets, reducing the absolute trajectory error (ATE) of previous state-of-the-art methods on VBR and Oxford Spires by over 70%. With additional LiDAR input, our model further reduces ATE to sub-meter level on KITTI and VBR datasets.