位置情報のみからの軌道比較:曲率ベースの時間同期とドリフト誤差指標
Comparing Trajectories from Positions Alone: Curvature-Based Time Alignment and Drift Error Metric
ロボティクスにおける軌道評価のための新しいプロトコルを提案し、曲率信号に基づく時間同期法と走行距離で正規化した誤差指標を組み合わせることで、より厳密で再現可能な評価を可能にする。
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著者: Effie Daum, Daniele De Martini, Claire Dune, François Pomerleau
分類: cs.RO
原文アブストラクト
In field robotics, acquiring independent large-scale reference trajectories more accurate than the evaluated estimates remains an open challenge. The domain is widely reliant on Absolute Trajectory Error (ATE) and Relative Pose Error (RPE), computed with automated tools, that rest on assumptions and evaluation parameters rarely made explicit. When unreported, the errors can be misleading and hinder fair comparisons. This paper introduces a trajectory-evaluation protocol for standardized and reliable accuracy assessment in state estimation, localization, and Simultaneous Localization And Mapping (SLAM). The approach combines a novel temporal alignment method based on curvature signals with an error metric normalized by travelled distance. We explicitly account for temporal synchronization, sampling alignment, and extrinsic calibration, quantifying their influence through a sensitivity analysis. The proposed protocol contributes to more rigorous, reproducible, and standardized trajectory evaluation.