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arXiv 2510.02080cs.RO

EC3R-SLAM:基于前馈三维重建的高效一致单目稠密SLAM

EC3R-SLAM: Efficient and Consistent Monocular Dense SLAM with Feed-Forward 3D Reconstruction

IBISC, Université Paris-Saclay(IBISC,巴黎萨克雷大学);College of Engineering and Technology, American University of the Middle East(工程与技术学院,中东美国大学)

Lingxiang Hu, Naima Ait Oufroukh, Fabien Bonardi, Raymond Ghandour

AI总结:

针对单目稠密SLAM延迟高、内存消耗大且依赖标定的问题,提出免标定的EC3R-SLAM框架,通过跟踪与带内参估计的前馈重建建图模块耦合、结合局部全局回环,在保证精度的同时提升效率,可在资源受限平台运行。

摘要:

单目稠密同时定位与建图(Simultaneous Localization and Mapping,SLAM)的应用常受高延迟、GPU内存消耗大以及依赖相机标定的阻碍。为缓解这一限制,我们提出EC3R-SLAM,这是一种新型的免标定单目稠密SLAM框架,可同时实现高定位与建图精度、低延迟以及低GPU内存消耗。该框架通过耦合维持特征点稀疏地图的跟踪模块,与基于可同时估计相机内参的前馈三维重建模型的建图模块来实现高效性。此外,框架还融合了局部与全局回环检测以保障中期和长期数据关联,强化多视图一致性,从而提升系统的整体精度与鲁棒性。在多个基准数据集上的实验表明,EC3R-SLAM与现有最优方法相比性能具有竞争力,同时速度更快、内存效率更高。此外,它甚至能在笔记本电脑、Jetson Orin NX等资源受限平台上有效运行,凸显了其在实际机器人应用中的潜力。

英文摘要:

The application of monocular dense Simultaneous Localization and Mapping (SLAM) is often hindered by high latency, large GPU memory consumption, and reliance on camera calibration. To relax this constraint, we propose EC3R-SLAM, a novel calibration-free monocular dense SLAM framework that jointly achieves high localization and mapping accuracy, low latency, and low GPU memory consumption. This enables the framework to achieve efficiency through the coupling of a tracking module, which maintains a sparse map of feature points, and a mapping module based on a feed-forward 3D reconstruction model that simultaneously estimates camera intrinsics. In addition, both local and global loop closures are incorporated to ensure mid-term and long-term data association, enforcing multi-view consistency and thereby enhancing the overall accuracy and robustness of the system. Experiments across multiple benchmarks show that EC3R-SLAM achieves competitive performance compared to state-of-the-art methods, while being faster and more memory-efficient. Moreover, it runs effectively even on resource-constrained platforms such as laptops and Jetson Orin NX, highlighting its potential for real-world robotics applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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