確率的軌道GOSPA:不確実性を考慮した多物体追跡性能評価指標
Probabilistic Trajectory GOSPA: A Metric for Uncertainty-Aware Multi-Object Tracking Performance Evaluation
軌道レベルの不確実性を持つ多物体追跡アルゴリズムを評価するため、確率的GOSPA指標を拡張した新しい指標を提案し、その性質と有効性をシミュレーションで示した。
詳しい要約
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著者: Yuxuan Xia, Ángel F. García-Fernández, Johan Karlsson, Yu Ge, Lennart Svensson, Ting Yuan
分類: eess.SP, cs.RO
原文アブストラクト
This paper presents a generalization of the trajectory general optimal sub-pattern assignment (GOSPA) metric for evaluating multi-object tracking algorithms that provide trajectory estimates with track-level uncertainties. This metric builds on the recently introduced probabilistic GOSPA metric to account for both the existence and state estimation uncertainties of individual object states. Similar to trajectory GOSPA (TGOSPA), it can be formulated as a multidimensional assignment problem, and its linear programming relaxation--also a valid metric--is computable in polynomial time. Additionally, this metric retains the interpretability of TGOSPA, and we show that its decomposition yields intuitive costs terms associated to expected localization error and existence probability mismatch error for properly detected objects, expected missed and false detection error, and track switch error. The effectiveness of the proposed metric is demonstrated through a simulation study.
