测绘学报
測繪學報
측회학보
ACTA GEODAETICA ET CARTOGRAPHICA SINICA
2015年
4期
453-461,470
,共10页
何海威%钱海忠%刘海龙%王骁%胡慧明
何海威%錢海忠%劉海龍%王驍%鬍慧明
하해위%전해충%류해룡%왕효%호혜명
制图综合%道路选取%道路层次%stroke%中介中心性
製圖綜閤%道路選取%道路層次%stroke%中介中心性
제도종합%도로선취%도로층차%stroke%중개중심성
map general ization%road selection%road hierarchical structure%road stroke%betweenness centrality
提出了基于路网层次骨架控制的道路自动选取方法。首先,该方法以 stroke 为单位,利用中介中心性值对 stroke 进行层次结构划分;其次,采用结构特征识别完善道路层次骨架;第三,基于层次骨架间的连通关系建立逐层传递的 stroke 重要性计算模型;最后,通过该计算模型自上而下的逐层计算,得到 stroke 重要性,并据此完成道路网选取。采用3种典型道路网数据,对本方法与其他主要常规stroke 选取方法进行对比,试验结果表明本方法不但对语义的依赖性极低,同时消除了中介中心性在评价道路重要性时对边缘道路的不利影响,在保持道路网整体结构和层次性上有较为明显的优势,可适用于各种形态的道路网选取。
提齣瞭基于路網層次骨架控製的道路自動選取方法。首先,該方法以 stroke 為單位,利用中介中心性值對 stroke 進行層次結構劃分;其次,採用結構特徵識彆完善道路層次骨架;第三,基于層次骨架間的連通關繫建立逐層傳遞的 stroke 重要性計算模型;最後,通過該計算模型自上而下的逐層計算,得到 stroke 重要性,併據此完成道路網選取。採用3種典型道路網數據,對本方法與其他主要常規stroke 選取方法進行對比,試驗結果錶明本方法不但對語義的依賴性極低,同時消除瞭中介中心性在評價道路重要性時對邊緣道路的不利影響,在保持道路網整體結構和層次性上有較為明顯的優勢,可適用于各種形態的道路網選取。
제출료기우로망층차골가공제적도로자동선취방법。수선,해방법이 stroke 위단위,이용중개중심성치대 stroke 진행층차결구화분;기차,채용결구특정식별완선도로층차골가;제삼,기우층차골가간적련통관계건립축층전체적 stroke 중요성계산모형;최후,통과해계산모형자상이하적축층계산,득도 stroke 중요성,병거차완성도로망선취。채용3충전형도로망수거,대본방법여기타주요상규stroke 선취방법진행대비,시험결과표명본방법불단대어의적의뢰성겁저,동시소제료중개중심성재평개도로중요성시대변연도로적불리영향,재보지도로망정체결구화층차성상유교위명현적우세,가괄용우각충형태적도로망선취。
A new road network selection method based on hierarchical structure is studied.Firstly,road network is built as strokes which are then classified into hierarchical collections according to the criteria of betweenness centrality value (BC value).Secondly,the hierarchical structure of the strokes is enhanced using structural characteristic identification technique.Thirdly,the importance calculation model was established according to the relationships among the hierarchical structure of the strokes.Finally,the importance values of strokes are got supported with the model’s hierarchical calculation,and with which the road network is selected.Tests are done to verify the advantage of this method by comparing it with other common stroke‐oriented methods using three kinds of typical road network data.Comparision of the results show that this method had few need to semantic data,and could eliminate the negative influence of edge strokes caused by the criteria of BC value well.So,it is better to maintain the global hierarchical structure of road network,and suitable to meet with the selection of various kinds of road network at the same time.