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arXiv 2303.00616cs.ROcs.CV
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使用一个Enseminar学习回归模型和1-D全局数据表征池预测SLAM ATE

Prediction of SLAM ATE Using an Ensemble Learning Regression Model and 1-D Global Pooling of Data Characterization

University of Alberta(阿尔伯塔大学);University of Toronto(多伦多大学)

Islam Ali, Bingqing, Wan, Hong Zhang

摘要:

同时定位与地图构建(SLAM)的鲁棒性和弹性是现代自主机器人系统的关键要求。实现鲁棒性和弹性的基本步骤之一是SLAM具有针对其定位估计的完整性度量的能力,并且因此具有内部容错机制来处理性能降级。在这项工作中,我们介绍了一种新的方法来预测SLAM定位误差的基础上表征的原始传感器输入。所提出的方法依赖于使用一个随机森林回归模型训练的1-D全球汇集的功能,从特征化的原始传感器数据。该模型通过使用它来预测ORB-SLAM 3在四种不同操作模式下运行的三个不同数据集上的性能进行验证,导致平均预测精度高达94.7%。本文还研究了12种不同的一维全局池函数对回归质量的影响,定量证明了一维全局平均的优越性。最后,研究了有限训练数据下的预测质量,证明了在仅使用20%的训练样本进行训练的情况下,我们能够保持适当的预测质量,从而突出了该模型如何优化SLAM系统的评估足迹。

英文摘要:

Robustness and resilience of simultaneous localization and mapping (SLAM) are critical requirements for modern autonomous robotic systems. One of the essential steps to achieve robustness and resilience is the ability of SLAM to have an integrity measure for its localization estimates, and thus, have internal fault tolerance mechanisms to deal with performance degradation. In this work, we introduce a novel method for predicting SLAM localization error based on the characterization of raw sensor inputs. The proposed method relies on using a random forest regression model trained on 1-D global pooled features that are generated from characterized raw sensor data. The model is validated by using it to predict the performance of ORB-SLAM3 on three different datasets running on four different operating modes, resulting in an average prediction accuracy of up to 94.7\%. The paper also studies the impact of 12 different 1-D global pooling functions on regression quality, and the superiority of 1-D global averaging is quantitatively proven. Finally, the paper studies the quality of prediction with limited training data, and proves that we are able to maintain proper prediction quality when only 20 \% of the training examples are used for training, which highlights how the proposed model can optimize the evaluation footprint of SLAM systems.

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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