| 基于视频牌照识别的动态交通OD估计仿真优化 |
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| 引用本文： | 孙剑,李克平,魏静,苏贵民. 基于视频牌照识别的动态交通OD估计仿真优化[J]. 公路交通科技, 2009, 26(8) |
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| 作者姓名： | 孙剑 李克平 魏静 苏贵民 |
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| 作者单位： | 同济大学道路与交通512程教育部重点实验室,上海,200092 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，上海市自然科学基金 |
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| 摘 要： | 为了解决目前基于视频图像自动识别牌照进而推算动态OD的系统缺乏研究手段和工具的问题,应用Visual Ba-sic编程语言,通过组件对象编程技术,研究开发了基于微观仿真模型VISSIM的动态交通OD估计仿真试验平台,包括数据库系统、仿真模型系统以及数据采集处理系统.分别设计了最短路算法、车辆转向率法以及BP神经网络法以提高OD估计精度.上海陆家嘴区域的案例研究结果表明:车辆转向率法OD估计误差在5%以下,其计算效率和精度最优;在视频检测器满布状态下满足动态交通管理OD要求的视频牌照识别精度阈值为80%.
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| 关 键 词： | 交通工程 动态OD 牌照识别 转向率法 微观仿真模型 视频检测器 |
Dynamic OD Estimation Simulation Optimization Based on Video License Plate Recognition |
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| SUN Jian,LI Keping,WEI Jing,SU Guimin. Dynamic OD Estimation Simulation Optimization Based on Video License Plate Recognition[J]. Journal of Highway and Transportation Research and Development, 2009, 26(8) |
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| Authors: | SUN Jian LI Keping WEI Jing SU Guimin |
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| Affiliation: | Key Laboratory of Road and Traffic Engineering;Ministry of Education;Tongji University;Shanghai 200092;China |
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| Abstract: | In order to solve the problem that there are lack of research tools and methods to estimate the dynamic OD based on video license plate automatic recognition,by using the programming language Visual Basic and component object programming technology,the dynamic OD estimation simulation platform which includes the database system,simulation model system,and data collecting and processing system was built based on micro traffic simulation model VISSIM.The shortest path algorithm,vehicle turn-ratio algorithm an... |
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| Keywords: | traffic engineering dynamic OD license plate recognition turn-ratio algorithm micro simulationmodel video detector |
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