车载POS公路线形特征识别与参数计算 |
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引用本文: | 郝雨时,徐爱功,章红平,隋心. 车载POS公路线形特征识别与参数计算[J]. 武汉大学学报(信息科学版), 2018, 43(8): 1249-1255. DOI: 10.13203/j.whugis20160311 |
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作者姓名: | 郝雨时 徐爱功 章红平 隋心 |
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作者单位: | 1.辽宁工程技术大学测绘与地理科学学院, 辽宁 阜新, 123000 |
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基金项目: | 国家重点研发计划2016YFC0803102国家863计划2014AA123101国家自然科学基金41501504辽宁省教育厅创新团队LT2015013辽宁省教育厅科学研究L2013141地理空间信息工程国家测绘地理信息局重点实验室经费201522 |
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摘 要: | 为了高效获取高质量公路线形参数信息,采用车载定姿定位系统(position orientation system,POS)获取的离散坐标、姿态等信息,通过后处理的方式反演公路线形参数及特征。包括利用均值加速中值滤波平滑的姿态信息分析曲率分布特征,并进行线形特征初步识别、直线和圆曲线线形窗口准确识别与参数计算,利用平差后的直线和圆曲线参数计算缓和曲线参数,最终获得全路段最优化轨迹及线形特征信息。利用该方法处理某公路路段(全程20 km)的车载POS数据,处理结果证明该方法简单高效,具有可行性。
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关 键 词: | POS 姿态信息 均值加速中值滤波 线形识别计算 |
收稿时间: | 2017-06-27 |
Road Recognition and Calculation of Relevant Parameters with POS |
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Affiliation: | 1.School of Geomatics, Liaoning Technical University, Fuxin 123000, China2.GNSS Research Center, Wuhan University, Wuhan 430079, China |
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Abstract: | In order to efficiently obtain high quality information of highway alignment parameters, vehicle position orientation system is adopted to obtain information of dispersed coordinate and attitude, and line type parameters are calculated through post processing. This paper firstly presents a method of initial recognition based on curvature characteristic which is calculated by azimuth filtered by fast median filtering algorithm. Secondly, calculations and accurate recognition of line and circle type parameters are performed. Finally the parameters of approach curve are calculated by adjusted line and circle curve parameters. The method in this paper has been testified at a highway, and the results show that this method is practical. |
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