發(fā)布時間：2019-01-19 20:24

【摘要】：針對道路建設引起的路域DEM數(shù)據(jù)變化范圍的標定問題,該文探討了基于多源數(shù)據(jù)的標定方法。該方法首先提取設計成果的外邊界作為核心變化區(qū),再根據(jù)該區(qū)域100m范圍內(nèi)道路建設前后的遙感影像提取出植被發(fā)生明顯變化的區(qū)域作為野外調(diào)查和建模處理的區(qū)域,并對該區(qū)域內(nèi)融合構建的DEM數(shù)據(jù)和原有帶狀地形圖構建的DEM數(shù)據(jù)進行差異分析,求出最終的DEM數(shù)據(jù)變化區(qū)。以杭瑞高速畢都(畢節(jié)至都格)段為例開展的實驗研究表明,該文提出的方法可以精確地標定因道路建設引起路域DEM數(shù)據(jù)的變化區(qū)域,可直接用于DEM數(shù)據(jù)增量的采編與更新操作。
[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.
【作者單位】： 長沙理工大學交通運輸工程學院;貴州省交通規(guī)劃勘察設計研究院股份有限公司;
【基金】：貴州省交通運輸廳科技計劃項目(2015-121-022) 湖南省科技廳重點研發(fā)計劃項目(2016SK2023)
【分類號】：P208

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