Reinforcement learning-based vehicle travel path reconstruction from sparse automatic licence plate recognition data

Automatic licence plate recognition (ALPR) data is a vital source for acquiring large-scale vehicle trajectory data in urban transportation research. However, the sparse distribution of ALPR sensors often results in incomplete vehicle trajectories with unobserved travel paths between adjacent ALPR s...

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Main Authors: Qiuping Li, Hui Meng, Li Zhuo
Format: Article
Language:English
Published: Taylor & Francis Group 2025-01-01
Series:Annals of GIS
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/19475683.2025.2453553
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author Qiuping Li
Hui Meng
Li Zhuo
author_facet Qiuping Li
Hui Meng
Li Zhuo
author_sort Qiuping Li
collection DOAJ
description Automatic licence plate recognition (ALPR) data is a vital source for acquiring large-scale vehicle trajectory data in urban transportation research. However, the sparse distribution of ALPR sensors often results in incomplete vehicle trajectories with unobserved travel paths between adjacent ALPR sensors. To address this challenge, this study proposes a novel travel path reconstruction model based on reinforcement learning. First, the maximum entropy inverse reinforcement learning (MaxEnt IRL) method is employed to learn vehicle path selection strategy, i.e. the reward function, from the real data. Then, a comprehensive reward function is formulated by integrating destination rewards. Finally, the Q-learning algorithm is utilized to reconstruct vehicle travel paths between adjacent ALPR sensors based on the comprehensive reward function. Evaluation on a randomly selected set of 100 pairs of adjacent ALPR sensors demonstrates that the proposed model significantly outperforms two baseline methods, achieving reductions of 24.3% and 22.5% in deviation from the real paths.
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institution Kabale University
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publishDate 2025-01-01
publisher Taylor & Francis Group
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series Annals of GIS
spelling doaj-art-18667d179caa433da8ae0842384c2b342025-01-21T06:04:37ZengTaylor & Francis GroupAnnals of GIS1947-56831947-56912025-01-0111310.1080/19475683.2025.2453553Reinforcement learning-based vehicle travel path reconstruction from sparse automatic licence plate recognition dataQiuping Li0Hui Meng1Li Zhuo2School of Geography and Planning, Sun Yat-sen University, Guangzhou, ChinaSchool of Geography and Planning, Sun Yat-sen University, Guangzhou, ChinaSchool of Geography and Planning, Sun Yat-sen University, Guangzhou, ChinaAutomatic licence plate recognition (ALPR) data is a vital source for acquiring large-scale vehicle trajectory data in urban transportation research. However, the sparse distribution of ALPR sensors often results in incomplete vehicle trajectories with unobserved travel paths between adjacent ALPR sensors. To address this challenge, this study proposes a novel travel path reconstruction model based on reinforcement learning. First, the maximum entropy inverse reinforcement learning (MaxEnt IRL) method is employed to learn vehicle path selection strategy, i.e. the reward function, from the real data. Then, a comprehensive reward function is formulated by integrating destination rewards. Finally, the Q-learning algorithm is utilized to reconstruct vehicle travel paths between adjacent ALPR sensors based on the comprehensive reward function. Evaluation on a randomly selected set of 100 pairs of adjacent ALPR sensors demonstrates that the proposed model significantly outperforms two baseline methods, achieving reductions of 24.3% and 22.5% in deviation from the real paths.https://www.tandfonline.com/doi/10.1080/19475683.2025.2453553Vehicle travel path reconstructionreinforcement learninginverse reinforcement learningQ-learningautomatic licence plate recognition data
spellingShingle Qiuping Li
Hui Meng
Li Zhuo
Reinforcement learning-based vehicle travel path reconstruction from sparse automatic licence plate recognition data
Annals of GIS
Vehicle travel path reconstruction
reinforcement learning
inverse reinforcement learning
Q-learning
automatic licence plate recognition data
title Reinforcement learning-based vehicle travel path reconstruction from sparse automatic licence plate recognition data
title_full Reinforcement learning-based vehicle travel path reconstruction from sparse automatic licence plate recognition data
title_fullStr Reinforcement learning-based vehicle travel path reconstruction from sparse automatic licence plate recognition data
title_full_unstemmed Reinforcement learning-based vehicle travel path reconstruction from sparse automatic licence plate recognition data
title_short Reinforcement learning-based vehicle travel path reconstruction from sparse automatic licence plate recognition data
title_sort reinforcement learning based vehicle travel path reconstruction from sparse automatic licence plate recognition data
topic Vehicle travel path reconstruction
reinforcement learning
inverse reinforcement learning
Q-learning
automatic licence plate recognition data
url https://www.tandfonline.com/doi/10.1080/19475683.2025.2453553
work_keys_str_mv AT qiupingli reinforcementlearningbasedvehicletravelpathreconstructionfromsparseautomaticlicenceplaterecognitiondata
AT huimeng reinforcementlearningbasedvehicletravelpathreconstructionfromsparseautomaticlicenceplaterecognitiondata
AT lizhuo reinforcementlearningbasedvehicletravelpathreconstructionfromsparseautomaticlicenceplaterecognitiondata