本文選題：制圖綜合 + 城市道路網(wǎng)��； 參考：《武漢大學學報(信息科學版)》2017年08期

【摘要】：城市主干道路的識別和提取是路網(wǎng)綜合的關(guān)鍵步驟,而雙線道路則是大比例尺地圖數(shù)據(jù)中道路綜合的難點。針對城市雙線主干道識別問題,基于Gestalt視覺準則構(gòu)建候選雙線主干道線對的約束條件,提出了一種基于平行系數(shù)的雙線主干道識別方法。首先對道路網(wǎng)數(shù)據(jù)進行拓撲處理,然后借助道路匹配思想,結(jié)合Hausdorff(HD)距離匹配方法識別出可能構(gòu)成雙線主干道的候選線對。再對候選線對進行平行系數(shù)計算,當平行系數(shù)滿足閾值條件時,就判定該線對是構(gòu)成雙線主干道的弧段。最后根據(jù)構(gòu)成雙線主干道路段間的空間關(guān)系,將已識別的弧段連接成整條道路。實驗證明,選取典型樣本方法正確設置閾值后,該方法能有效地提取道路網(wǎng)中的雙線主干道。
[Abstract]:The identification and extraction of urban trunk road is the key step of road network synthesis, while the dual road is the difficulty of road synthesis in large scale map data. Aiming at the problem of urban dual trunk road identification, a method based on parallel coefficient is proposed to identify the dual trunk road, which is based on the Gestalt vision criterion to construct the constraint condition of the candidate dual trunk road pair. Firstly, the road network data is topologically processed, and then, with the aid of the road matching idea and the Hausdorff HDD distance matching method, the candidate line pairs that may form the two-line main road are identified. Then the parallel coefficient of the candidate line pair is calculated. When the parallel coefficient meets the threshold condition, it is determined that the line pair is the arc of the two-line main road. Finally, the identified arcs are connected into the whole road according to the spatial relationship between the sections of the two-lane main road. The experimental results show that this method can effectively extract the two-line main road in road network after selecting the typical sample method to set the threshold correctly.
【作者單位】： 信息工程大學地理空間信息學院;蘇州工業(yè)園區(qū)格網(wǎng)信息科技有限公司;中國洛陽電子裝備試驗中心;西安測繪信息技術(shù)總站;
【基金】：國家自然科學基金(41471386,41101362,41301524) 信息工程大學地理空間信息學院學位論文創(chuàng)新與創(chuàng)優(yōu)基金(XS201509)~~
【分類號】：P208

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本文編號：1859352