路域DEM数据变化区域标定方法的探讨
发布时间：2019-01-19 20:24
【摘要】：针对道路建设引起的路域DEM数据变化范围的标定问题,该文探讨了基于多源数据的标定方法。该方法首先提取设计成果的外边界作为核心变化区,再根据该区域100m范围内道路建设前后的遥感影像提取出植被发生明显变化的区域作为野外调查和建模处理的区域,并对该区域内融合构建的DEM数据和原有带状地形图构建的DEM数据进行差异分析,求出最终的DEM数据变化区。以杭瑞高速毕都(毕节至都格)段为例开展的实验研究表明,该文提出的方法可以精确地标定因道路建设引起路域DEM数据的变化区域,可直接用于DEM数据增量的采编与更新操作。
[Abstract]:This paper discusses the calibration method based on multi-source data in view of the calibration problem of the range of DEM data change caused by road construction. In this method, the outer boundary of the design results is first extracted as the core change area, and then, according to the remote sensing images before and after the road construction within 100 m of the region, the area where the vegetation changes obviously is extracted as the field investigation and modeling area. The difference between the DEM data fused in the region and the DEM data constructed by the original zonal topographic map is analyzed, and the final DEM data variation area is obtained. The experimental study on the section of Beidu (Bijie to Duge) in Hangrui Expressway shows that the method proposed in this paper can accurately calibrate the changing region of DEM data caused by road construction. Can be directly used for DEM data increment collection and update operation.
【作者单位】： 长沙理工大学交通运输工程学院;贵州省交通规划勘察设计研究院股份有限公司;
【基金】：贵州省交通运输厅科技计划项目(2015-121-022) 湖南省科技厅重点研发计划项目(2016SK2023)
【分类号】：P208
[Abstract]:This paper discusses the calibration method based on multi-source data in view of the calibration problem of the range of DEM data change caused by road construction. In this method, the outer boundary of the design results is first extracted as the core change area, and then, according to the remote sensing images before and after the road construction within 100 m of the region, the area where the vegetation changes obviously is extracted as the field investigation and modeling area. The difference between the DEM data fused in the region and the DEM data constructed by the original zonal topographic map is analyzed, and the final DEM data variation area is obtained. The experimental study on the section of Beidu (Bijie to Duge) in Hangrui Expressway shows that the method proposed in this paper can accurately calibrate the changing region of DEM data caused by road construction. Can be directly used for DEM data increment collection and update operation.
【作者单位】： 长沙理工大学交通运输工程学院;贵州省交通规划勘察设计研究院股份有限公司;
【基金】：贵州省交通运输厅科技计划项目(2015-121-022) 湖南省科技厅重点研发计划项目(2016SK2023)
【分类号】：P208
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